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Related tags: library (2769), bsd3 (2201), mit (855), development (484), web (468), gpl (440), network (259), text (258), deprecated (255), language (249), system (203), data (193), game (180), graphics (176), apache (128), unclassified (118), distribution (117), math (105), database (97), compilers-interpreters (84), testing (80), console (76), utils (74), bioinformatics (70), agpl (65), sound (60), public-domain (57), compiler (56), control (56), utility (53), application (51), tools (46), cli (45), ai (44), codec (43), lgpl (38), mpl (38), bsd2 (35), natural-language-processing (35), finance (34), cryptography (31), concurrency (30), machine-learning (27), music (27), frp (26), parsing (25), algorithms (24), data-structures (24), hardware (22), nix (21), dependent-types (20), distributed-computing (20), theorem-provers (20), documentation (19), cloud (18), gui (18), security (18), user-interfaces (18), education (16), ide (16), manatee (16), profiling (16), debug (15), json (15), 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multimedia-player (2), observability (2), optimisation (2), packaging (2), payments (2), plugin (2), poetry (2), preprocessor (2), project-management (2), pugs (2), pup-events (2), quantum (2), records (2), regex (2), reverse-engineering (2), roguelike (2), rpc (2), rss (2), sample-code (2), selenium (2), semantic-web (2), shell (2), simd (2), smt (2), snap (2), source-code-analysis (2), state-machines (2), streamly (2), tensors (2), ur-web (2), user-interface (2), value (2), vector (2), webassembly (2), webdriver (2), x11 (2), .net (1), GraphViz (1), ab1 (1), abif (1), adsb (1), aerospace (1), aftovolio (1), agda (1), algorithmic-music-composition (1), all-rights-reserved (1), analysis (1), application-server (1), archaeoinformatics (1), array (1), artificial-intelligence (1), astronomy (1), atom (1), attribute-grammars (1), automatic-music-generation (1), automation (1), base (1), benchmark (1), binary (1), bioinformatics- (1), blog (1), bsd4 (1), bundle (1), cabal (1), capnproto (1), cashflow (1), chaos-music (1), chess-engine (1), chromatogram (1), chrome (1), ci (1), client (1), clipboard (1), clr (1), code-analysis (1), code-generator (1), code-quality (1), commerce (1), commercial (1), compilation (1), composition (1), concourse (1), containers (1), control.monad (1), convenience (1), cryptocurrency (1), culinary (1), data- (1), data-flow (1), data-mining----------- (1), data-processing (1), database-design (1), decompiler (1), derive-monoid (1), derive-monoid- (1), development-web (1), devops (1), dfinity (1), discord (1), distributed-systems (1), domain-specific-language (1), dynamic-programming (1), ebnf (1), ecs (1), editing (1), effects (1), efficient-xml-pretty-printer (1), elliptic-curves (1), elm (1), email--- (1), environment (1), etl (1), exceptions (1), executable (1), experiment (1), faas (1), factual (1), fay (1), fcm (1), feed (1), ffi- (1), file (1), filter (1), finance- (1), financial (1), flatpak (1), font (1), fortran (1), fractals (1), futhark (1), game-development (1), games- (1), gateway (1), generative-music-grammars (1), gentoo (1), giveyouahead (1), glpk (1), gpu (1), hakyll (1), ...

Name
DLs
Rating
Rev Deps
Description
Tags
Last U/L
Last Version
Maintainers
3d-graphics-examples131.751Examples of 3D graphics programming with OpenGL (bsd3, fractals, graphics, program)2016-07-220.0.0.2WolfgangJeltsch
4Blocks141.251A tetris-like game (works with GHC 6.8.3 and Gtk2hs 0.9.13) (bsd3, game, program)2010-05-070.2AndrewCalleja
AERN-Basics (deprecated in favor of aern2-mp, aern2-real)150.04foundational type classes for approximating exact real numbers (bsd3, data, deprecated, library, math, program)2011-05-112011.1.0.1MichalKonecny
AERN-Real-Double (deprecated in favor of aern2-mp, aern2-real)120.01arbitrary precision real interval arithmetic (bsd3, data, deprecated, library, math, program)2011-05-112011.1.0.2MichalKonecny
ActionKid110.01An easy-to-use video game framework for Haskell. (bsd3, game-engine, library, program)2014-11-110.1.1.0AdityaBhargava
Adaptive80.01Library for incremental computing. (algorithms, bsd3, library, program)2013-01-280.23DustinDeWeese, MagnusCarlsson, PeterJonsson
Adaptive-Blaisorblade80.01Library for incremental computing. (bsd3, control, library, program)2013-01-260.23PaoloGiarrusso
Advgame170.01Lisperati's adventure game in Lisp translated to Haskell (bsd3, game, program)2010-06-110.1.2TimWawrzynczak
Advise-me50.00Assessment services for the Advise-Me project (apache, education, library, program)2019-10-300.1BastiaanHeeren
Agda3762.758A dependently typed functional programming language and proof assistant (dependent-types, library, mit, program)2026-09-132.8.0.2AndreasAbel, AndresSicardRamirez, NilsAndersDanielsson, UlfNorell, jcockx
Agda-executable (deprecated in favor of Agda)260.01Command-line program for type-checking and compiling Agda programs (dependent-types, deprecated, program)2012-03-122.3.0.1NilsAndersDanielsson, UlfNorell
AlgoRhythm20.00Algorithmic music composition (algorithmic-music-composition, automatic-music-generation, bsd3, chaos-music, generative-music-grammars, library, program)2018-04-060.1.0.0omelkonian
AlgorithmW160.01Example implementation of Algorithm W for Hindley-Milner type inference. (bsd3, development, program)2015-05-270.1.1.0MartinGrabmueller
Allure1002.01Near-future Sci-Fi roguelike and tactical squad combat game (agpl, game, library, program, roguelike)2021-12-170.11.0.0MikolajKonarski
AndroidViewHierarchyImporter80.01Android view hierarchy importer (bsd3, development, program)2012-12-190.1.0.1alpheccar
Ansi2Html80.01Convert ANSI Terminal Sequences to nice HTML markup (bsd3, program, web)2011-09-100.9JensStimpfle
Aoide200.00A simple music library that can generate Lilypond and MIDI files. (bsd3, composition, library, lilypond, midi, music, program)2026-05-202.0.0.0Liisi_Kerik
ApplePush40.01Library for Apple Push Notification Service (bsd3, library, network, program)2009-07-130.1ChrisMoos
Attrac110.01Visualisation of Strange Attractors in 3-Dimensions (bsd3, graphics, program)2010-03-150.1.3RubenZilibowitz
Aurochs60.01Yet another parser generator for C/C++ (bsd3, development, program)2011-11-080.1XinyuJiang
BCMtools60.00Big Contact Map Tools (bioinformatics, library, mit, program)2015-05-050.1.1kaizhang
BNFC1592.252A compiler front-end generator. (bsd3, library, parsing, program)2026-03-162.9.6.3AndreasAbel, GregoireDetrez, MarkusForsberg, ThomasHallgren, Commelina
BPS100.00Translations of classic Truth Maintenance Systems (gpl, library, program, truth-maintenance)2022-09-130.1.1.0jpmrst
Barracuda60.01An ad-hoc P2P chat program (library, network, program)2008-04-051.0.2GwernBranwen
Befunge9350.01An interpreter for the Befunge-93 Programming Language (bsd3, compilers-interpreters, program)2010-05-200.1BrandonSimmons
BigPixel190.01Image editor for pixel art (bsd3, development, program)2014-01-241.3.0ManuelChakravarty
BiobaseFasta230.04streaming FASTA parser (bioinformatics, bsd3, library, program)2021-06-040.4.0.1ChristianHoener
BiobaseHTTPTools40.00Tools to query Bioinformatics HTTP services e.g. Entrez, Ensembl. (bioinformatics, gpl, program)2018-12-131.0.0FlorianEggenhofer
BiobaseInfernal510.03Infernal data structures and tools (bioinformatics, gpl, library, program)2017-03-140.8.1.0ChristianHoener
BiobaseNewick130.02Newick file format parser. (bioinformatics, bsd3, library, program)2017-07-070.0.0.2ChristianHoener
BiobaseTrainingData190.02RNA folding training data (bioinformatics, gpl, library, program)2011-09-290.1.2.3ChristianHoener
BiobaseXNA670.017Efficient RNA/DNA/Protein Primary/Secondary Structure (bioinformatics, bsd3, library, program)2021-06-040.11.1.1ChristianHoener
BirdPP100.01A preprocessor for Bird-style Literate Haskell comments with Haddock markup. (development, program)2012-08-021.1SeanMcLaughlin
Blobs60.01Diagram editor (graphics, library, program)2012-06-190.3AlanZimmerman
BlogLiterately3150.02A tool for posting Haskelly articles to blogs (gpl, library, program, web)2023-02-080.8.8.2BrentYorgey, RobertGreayer
BlogLiterately-diagrams1120.01Include images in blog posts with inline diagrams code (bsd3, library, program, web)2023-08-220.3.1BrentYorgey
Blogdown391.51A markdown-like markup language designed for blog posts (agpl, library, program, web)2018-02-050.2.4alexbecker
Bookshelf470.01A simple document organizer with some wiki functionality (program, text)2016-01-110.6EmilAxelsson
Buster50.01Hits a set of urls periodically to bust caches (mit, program, web)2013-05-220.1.1MichaelXavier
CCA190.03preprocessor and library for Causal Commutative Arrows (CCA) (bsd3, development, library, program)2015-05-080.1.5.3PaulLiu
CMCompare240.01Infernal covariance model comparison (bioinformatics, gpl, library, program)2012-11-220.0.1.5ChristianHoener
CPBrainfuck120.01A simple Brainfuck interpretter. (bsd3, compilers-interpreters, program)2008-11-061.1ThomasDavie
CPL280.01An interpreter of Hagino's Categorical Programming Language (CPL). (bsd3, compilers-interpreters, program)2026-02-060.2.0MasahiroSakai
CSPM-cspm260.01cspm command line tool for analyzing CSPM specifications. (bsd3, concurrency, formal-methods, language, library, program)2017-10-260.8.1.0MarcFontaine
CabalSearch100.01Search cabal packages by name (bsd3, program, utils)2012-01-260.0.2JohanBrinch
CarneadesIntoDung142.01A translation from the Carneades argumentation model into Dung's AFs. (ai, argumentation, bsd3, embedded, library, program)2026-02-082.0.0.0BasVanGijzel
Chart-tests70.00Tests of the Charts library. (bsd3, graphics, program)2023-10-221.9.4bravit
CheatSheet850.01A Haskell cheat sheet in PDF and literate formats. (bsd3, help, program)2013-07-222.9JustinBailey
ChibiHash100.00a simple and fast 64-bit hash function (algorithms, data, library, mit, program)2024-12-020.2.0.0thevilledev
Chitra120.01A platform independent mechanism to render graphics using vnc. (bsd3, graphics, program)2011-05-010.2.2KashyapChatamballi
ClustalParser560.03Libary for parsing Clustal tools output (bioinformatics, gpl, library, program)2019-11-141.3.0FlorianEggenhofer
Combinatorrent250.01A concurrent bittorrent client (bsd3, network, program)2010-05-060.3.2JesperLouisAndersen
Commando100.01Watch some files; Rerun a command (development, library, mit, program)2014-03-061.0.0.4LyndonMaydwell
ConClusion302.00Cluster algorithms, PCA, and chemical conformere analysis (agpl, chemistry, library, program, statistics)2023-09-070.2.2phillipseeber
Condor80.01Information retrieval library (bsd3, library, program, search, text)2014-01-200.3klangner
Conscript30.01Restart a command on STDIN activity (mit, program, system)2013-07-040.1.0.0LyndonMaydwell
ContextAlgebra140.00Implementation of the context algebra. (bsd3, math, program)2016-08-241.0.0.0jhahn
Craft3e780.01Code for Haskell: the Craft of Functional Programming (education, library, mit, program)2026-09-180.2.0.7SimonThompson
CurryDB100.01CurryDB: In-memory Key/Value Database (bsd3, database, library, program)2013-01-300.1.1.0HideyukiTanaka
DAG-Tournament60.01Real-Time Game Tournament Evaluator (game, program)2009-10-100.1JoachimBreitner
DAV720.01RFC 4918 WebDAV support (gpl, library, program, web)2020-01-061.3.4ClintAdams
DBFunctor200.00DBFunctor - Functional Data Management => ETL/ELT Data Processing in Haskell (bsd3, etl, library, program)2021-05-230.1.2.1nkarag
DBlimited50.01A command-line SQL interface for flat files (tdf,csv,etc.) (bsd3, database, program)2010-12-060.1.1JohnMayer
DMuCheck60.01Distributed Mutation Analysis framework for MuCheck (gpl, program, testing)2015-01-060.3.0.2RahulGopinath
DPM100.01Darcs Patch Manager (development, library, program)2011-12-060.3.0.0StefanWehr
DSH1340.02Database Supported Haskell (bsd3, database, library, program)2015-06-030.12.0.1GeorgeGiorgidze, JeroenWeijers, AlexUlrich, AlexUlrich2
DSTM140.01A framework for using STM within distributed systems (distributed-computing, library, program)2010-08-050.1.2FrankKupke
Dao60.01Dao is meta programming language with its own built-in interpreted language, designed with artificial intelligence applications in mind. (gpl, library, program, unclassified)2014-11-210.1.0.2RaminHonary
DataIndex50.00A package for adding index column to data files (data, library, mit, program)2016-10-090.1.1steven_yhw
Deadpan-DDP370.01Write clients for Meteor's DDP Protocol (library, mit, program, unclassified)2015-10-150.9.6.0LyndonMaydwell
DefendTheKing200.01A simple RTS game (frp, game, program)2015-05-280.3.1YairChuchem
Delta-Lambda50.01A demonstration interpreter for type system delta-lambda (of N.G. De-bruijn) (compilers-interpreters, mit, program)2017-05-110.3.0.0listofoptions
DisTract60.01Distributed Bug Tracking System (bsd3, library, program, system)2008-02-170.2.5GwernBranwen
Dish180.01Hash modules (currently Murmur3) (bsd3, data, library, program)2017-11-290.0.0.6zcourts
DnaProteinAlignment60.01Frameshift-aware alignment of protein sequences with DNA sequences (bioinformatics, gpl, library, program)2013-12-180.0.0.1ChristianHoener
DocTest (deprecated in favor of doctest)570.01Test interactive Haskell examples (deprecated, mit, program, testing)2015-04-030.2.0.1
DrHylo80.01A tool for deriving hylomorphisms (bsd3, language, library, program)2008-12-090.0.2HugoPacheco
DrIFT130.01Program to derive type class instances (bsd3, data-structures, library, program)2013-11-112.4.2KiwamuOkabe
DrIFT-cabalized (deprecated in favor of DrIFT)330.01Program to derive type class instances (bsd3, data-structures, deprecated, program)2013-09-032.3.0GwernBranwen, KiwamuOkabe
Dung270.02An implementation of the Dung argumentation frameworks. (ai, argumentation, bsd3, embedded, library, program)2026-02-082.0.0.0BasVanGijzel
Dust-tools170.01Network filtering exploration tools (library, network, program)2013-12-171.3.2BrandonWiley
Dust-tools-pcap110.01Network filtering exploration tools that rely on pcap (network, program)2013-12-171.3.1BrandonWiley
DynamicTimeWarp60.01Dynamic time warping of sequences. (data, lgpl, library, program)2015-02-050.1.0.0zombiecalypse
Ebnf2ps240.01Peter's Syntax Diagram Drawing Tool (bsd3, language, program)2015-08-261.0.15PeterThiemann, FranklinChen
EditTimeReport100.01Query language and report generator for edit logs. (program, utils)2010-01-151.0BartSpaans
Elm (deprecated in favor of elm-compiler)980.06The Elm language module. (bsd3, compiler, deprecated, language, library, program)2014-09-220.13EvanCzaplicki
Emping300.01derives heuristic rules from nominal data (data-mining, program)2009-05-290.6HansVanThiel
Encode330.02Encoding character data (codec, library, program, text)2016-05-261.3.8OtakarSmrz
Eq (deprecated)250.01Render math formula in ASCII, and perform some simplifications (bsd3, deprecated, language, math, program)2013-05-281.1.3VincentBerthoux
EtaMOO170.01A new implementation of the LambdaMOO server (bsd3, network, program)2016-02-060.3.0.0RobLeslie
Etage-Graph180.01Data-flow based graph algorithms (data-structures, lgpl, library, program)2014-05-100.1.8MitarMilutinovic
Eternal10Seconds220.01A 2-D shooting game (bsd3, game, program)2010-05-240.2HirotoKoyama
Etherbunny100.01A network analysis toolkit for Haskell (library, network, program)2008-01-180.3NicholasBurlett
FComp100.01Compose music (gpl, library, music, program)2014-09-251.0.2JosePedroMagalhaes
FM-SBLEX80.01A set of computational morphology tools for Swedish diachronic lexicons. (natural-language-processing, program)2010-11-243.0.1MarkusForsberg
FTPLine230.01A command-line FTP client. (bsd3, network, program)2016-06-031.4.1.1DanielDiaz
FermatsLastMargin70.01Annotate ps and pdf documents (program, web)2008-03-120.1GwernBranwen
Feval42.01Evaluation using F-Algebras (language, mit, program)2015-09-071.0.0.1burz
Files80.00File content extraction/rearrangement (io, library, mit, program)2016-10-190.1.1.1steven_yhw
Flint2-Examples60.00Examples for the Flint2 library (gpl, math, program)2023-11-170.1.0.2monien
Flippi150.01Wiki (bsd3, program, text)2008-03-160.0.5AudreyTang, GwernBranwen
Folly640.01A first order logic library in Haskell (bsd3, library, program, theorem-provers)2015-10-030.2.0.1dillonhuff
Foster170.01Utilities to generate and solve puzzles (data, mit, program)2015-01-191.1.2Jefffrey
FractalArt162.01Generates colorful wallpapers (graphics, mit, program)2016-05-060.2.0.3TomSmeets
Fractaler60.01 (graphics, mit, program)2015-10-113serprex
Frames-streamly540.00A streamly layer for Frames I/O (bsd3, data, library, program)2023-05-020.3.1.0adamCS
Frank120.01An experimental programming language with typed algebraic effects (languages, program, public-domain)2012-06-080.3ConorMcBride
FunGEn380.01A lightweight, cross-platform, OpenGL-based game engine. (bsd3, game, library, program)2023-09-011.2MiloslavRaus, SimonMichael
Fungi200.01Funge-98 interpreter written in Haskell (bsd3, compilers-interpreters, program)2015-02-161.0.6ThomasEding
GGg160.01GGg cipher (mit, program, text)2015-02-200.1.0.2xnil
GLFW-b-demo350.01GLFW-b demo (bsd3, graphics, program)2013-12-121.0.6BrianLewis, SchellScivally, javjarfer
GLM90.00Simple Gridlab-D GLM parser and utilities. (language, library, mit, program)2015-10-090.7.0.0LyndonMaydwell
GPipe-Examples50.01Examples for the GPipes package (graphics, program)2010-04-140.1KreeColeMcLaughlin
GPipe-GLFW440.00GLFW OpenGL context creation for GPipe (graphics, library, mit, program)2021-04-112.0.0srk, pippijn
Ganymede70.01An Io interpreter in Haskell. (bsd3, language, program)2011-04-180.0.0.5WaltBaety
GeBoP250.01Several games (bsd3, game, program)2015-09-231.7.5HenkJanVanTuyl, fgaz, GeorgeThomas, pranaysashank
GenI650.04A natural language generator (specifically, an FB-LTAG surface realiser) (library, natural-language-processing, program)2017-10-030.25.0.1EricKow
GenSmsPdu80.01Automatic SMS message generator (bsd3, library, program, testing)2024-02-150.2.0.0KwanghoonChoi, lazyswamp
GenZ50.00Generic Sequent Calculus Prover using the Zipper (gpl, library, logic, program)2026-06-240.1.0.0m4lvin
Genbank130.01Libary for processing the NCBI genbank format (bioinformatics, library, program)2014-10-261.0.3FlorianEggenhofer
Gene-CluEDO60.00Hox gene clustering (bioinformatics, gpl, library, program)2017-09-110.0.0.2ChristianHoener
GeneralTicTacToe72.01A general TicTacToe game implementation. (game, mit, program)2015-08-040.1.0.1afonsomatos
GenussFold70.00MCFGs for Genus-1 RNA Pseudoknots (bioinformatics, formal-languages, gpl, library, program)2015-07-160.0.0.2ChristianHoener
Gifcurry1052.01GIF creation utility. (application, bsd3, graphics, library, program)2018-03-213.0.0.1lettier
GlomeView70.01SDL Frontend for Glome ray tracer (graphics, program)2014-04-070.3JimSnow
Graph50040.02Graph500 benchmark-related definitions and data set generator. (concurrency, gpl, library, program)2013-11-050.4.0
GraphHammer-examples70.01Test harness for TriangleCount analysis. (concurrency, gpl, library, program)2013-11-050.3
GrowlNotify130.01Notification utility for Growl. (bsd3, library, network, program)2008-05-180.4NicholasBurlett
GuiHaskell100.01A graphical REPL and development environment for Haskell (bsd3, development, program)2008-03-060.1.1NeilMitchell
H220.01The Haskell/R mixed programming environment. (bsd3, ffi, program)2022-11-111.0.0FacundoDominguez, MathieuBoespflug
HABQT60.00Hierarchical adaptive Bayesian quantum tomography for quantum bits (bsd3, library, math, program, quantum)2018-07-010.1.0.0LeonidBelinsky
HARM (deprecated)140.01A simple ARM emulator in haskell (compilers-interpreters, deprecated, library, program)2008-12-060.1.4AlexMason
HCL672.01High-level library for building command line interfaces. (bsd3, library, program, user-interfaces)2024-11-291.9JustinBailey, jlamothe
HFitUI120.01The library for generating a graphical interface on the web (bsd3, library, program, web)2017-06-050.1.1.0QSpider2017
HGE2D270.002D game engine written in Haskell (game, library, mit, program)2016-07-300.1.9.2I3ck
HListPP150.01A preprocessor for HList labelable labels (bsd3, development, program)2020-04-170.2.2AdamVogt
HLogger (deprecated in favor of hlogger)60.02Simple, concurrent and easy-to-use logging library (bsd3, concurrency, deprecated, library, logging, program)2011-03-020.0.1.0JonKristensen
HNM140.01Happy Network Manager (bsd3, library, network, program, system)2009-01-250.1.2CetinSert
HOpenCV330.02A binding for the OpenCV computer vision library (ai, gpl, graphics, library, program)2015-08-080.4.0.1NoamLewis
HPDF2020.06Generation of PDF documents (bsd3, graphics, library, program)2025-08-081.8HenningThielemann, SylvainHenry
HPath90.01Extract Haskell declarations by name. (bsd3, library, program, source-tools, text)2010-01-020.0.2JasonDusek
HPlot140.01A minimal monadic PLplot interface for Haskell (bsd3, foreign, graphics, library, program)2009-08-040.3YakovZaytsev
HPong60.01A simple OpenGL Pong game based on GLFW (game, program)2009-04-230.1.2RemcoNiemeijer
HRay290.01Haskell raytracer (bsd3, graphics, program)2010-11-071.2.3GwernBranwen, KennethHoste
HSFFIG110.02Generate FFI import declarations from C include files (bsd3, ffi-tools, library, program)2010-07-151.1.3DmitryGolubovsky
HSGEP340.01Gene Expression Programming evolutionary algorithm in Haskell (ai, bsd3, library, program)2012-12-240.1.5MatthewSottile
HTF1592.07The Haskell Test Framework (lgpl, library, program, testing)2024-05-030.15.0.2DavidLeuschner, GwernBranwen, StefanWehr
HTab220.01Tableau based theorem prover for hybrid logics (bsd3, program, theorem-provers)2020-05-151.7.3GuillaumeHoffmann
HTicTacToe120.01An SDL tic-tac-toe game. (game, graphics, mit, program)2010-05-010.2KorcanHussein
HXMPP (deprecated in favor of pontarius-xmpp)40.01A (prototyped) easy to use XMPP library (bsd3, deprecated, library, network, program)2011-03-020.0.1.0JonKristensen
HaLeX320.01HaLeX enables modelling, manipulation and visualization of regular languages (data, library, program, public-domain)2025-12-231.3.0GwernBranwen, joaoSaraiva
HaTeX-meta (deprecated)120.01This package is deprecated. From version 3, HaTeX does not need this anymore. (bsd3, deprecated, program, text)2013-04-041.2.1DanielDiaz
HaVSA132.01An implementation of the Version Space Algebra learning framework. (ai, bsd3, library, program)2011-04-050.1.0.2RoganCreswick
HaXml2750.053Utilities for manipulating XML documents (lgpl, library, program, text, xml)2024-12-121.25.14JensPetersen, MalcolmWallace, phadej
Hach170.01Simple chat (library, mit, network, program)2013-11-170.1.2DmitryMalikov
HackMail60.01A Procmail Replacement as Haskell EDSL (bsd3, library, network, program)2009-03-280.0.1JoeFredette
Hangman200.01The classic game of Hangman (mit, program, unclassified)2024-07-210.10.0.0lf94
HangmanAscii92.00Yet another Hangman game. (bsd3, game, program)2023-07-100.1.1.3pylover
HarmTrace360.01Harmony Analysis and Retrieval of Music (gpl, music, program)2017-08-072.2.1BasDeHaas, JosePedroMagalhaes
HasBigDecimal132.253A library for arbitrary precision decimal numbers. (apache, library, math, program)2022-09-010.2.0.0thma
HasChor40.00Functional choreographic programming in Haskell (bsd3, concurrency, library, program)2023-11-130.1.0.1gan_shen
Haschoo (deprecated)150.01Minimalist R5RS Scheme interpreter (bsd3, compilers-interpreters, deprecated, program)2012-05-230.1.2MattiNiemenmaa
Hashell80.01Simple shell written in Haskell (program, user-interfaces)2009-01-181.0GwernBranwen
HaskellAnalysisProgram70.00Haskell source code analysis program (apache, program, source-code-analysis)2020-07-130.1.0BastiaanHeeren
HaskellNet-SSL920.04Helpers to connect to SSL/TLS mail servers with HaskellNet (bsd3, library, network, program)2025-02-150.4.0.2DanielWright, lemol, Hazelfire, mangoiv
HaskellTorrent120.01A concurrent bittorrent client (bsd3, network, program)2010-03-110.1.1JesperLouisAndersen
HaskellTutorials30.01Haskell Tutorials by Evgeny Ukhanov (mit, program, tutorials)2014-10-110.0.0.1mrlsd
Haskelloids150.01A reproduction of the Atari 1979 classic "Asteroids" (bsd3, game, program)2010-03-290.1.1IvanPerez, MatthewHayden
Hastructure280.00Cashflow modeling library for structured finance (bsd3, cashflow, library, program, securitisation, structuredfinance, structuredfinancesecuritisationcashflow)2025-07-170.50.4yellowbean
Hate52.00A small 2D game framework. (graphics, library, mit, program)2015-12-210.1.4.3bananu7
Hayoo82.01The Hayoo! search engine for Haskell API search on hackage (data, mit, program, text)2012-03-011.2.3UweSchmidt
Hedi60.01Line oriented editor (bsd3, editor, library, program)2008-11-300.1.1PaoloVeronelli
HipmunkPlayground420.01A playground for testing Hipmunk. (game, physics, program)2014-02-205.2.1.1FelipeLessa
Hish170.01 (bsd3, command-line, console, library, program, shell)2016-03-310.1.2.4jaiyalas
Hmpf50.01An MPD client designed for a Home Theatre PC (application, program)2007-08-120.1TomBevan
Holumbus-Distribution210.03intra- and inter-program communication (distributed-computing, library, network, program)2010-08-310.1.1StefanSchmidt
Holumbus-MapReduce270.01a distributed MapReduce framework (distributed-computing, library, program)2010-08-310.1.1StefanSchmidt
Holumbus-Storage150.02a distributed storage system (distributed-computing, library, program)2010-05-040.1.0StefanSchmidt
Hricket40.01A Cricket scoring application. (bsd3, game, program)2010-01-020.1AnthonyGrimes
Hs2lib260.01A Library and Preprocessor that makes it easier to create shared libs from Haskell programs. (bsd3, development, library, program)2015-01-270.6.3TamarChristina
Hsed270.01Stream Editor in Haskell (bsd3, editor, library, program)2011-03-130.2.2VitaliyRukavishnikov
HulkImport150.00Easily bulk import CSV data to SQL Server (bsd3, data, library, program)2015-11-090.1.0.3smobs
Hydrogen30.00The library for generating a WebGL scene for the web (bsd3, library, program, web)2017-06-140.1.0.0QSpider2017
HyloDP70.00A package for solving dynamic programming problems in Haskell (bsd3, dynamic-programming, library, program, recursion)2024-01-171.0.0DavidLlorens
IFS80.01Iterated Function System generation for Haskell (bsd3, graphics, library, program)2007-11-060.1.1alpheccar
INblobs70.01Editor and interpreter for Interaction Nets (compilers-interpreters, program)2008-06-190.1.1MiguelVilaca
IPv6DB720.00A RESTful microService for IPv6-related data (bsd3, database, library, network, program)2026-05-280.3.3.5MichelBoucey
Javasf (deprecated in favor of javasf)80.01A utility to print the SourceFile attribute of one or more Java class files. (bsd3, deprecated, language, program)2010-12-120.0.1TonyMorris
Javav (deprecated in favor of javav)180.01A utility to print the target version of Java class files. (bsd3, deprecated, language, program)2012-03-060.0.4TonyMorris
Jikka320.00A transpiler from Python to C++ for competitive programming (compilers-interpreters, library, program)2021-09-255.6.0.0kimiyuki
JsContracts200.01Design-by-contract for JavaScript (bsd3, language, library, program)2009-12-150.5.3ArjunGuha
JuPyTer-notebook30.00JuPyTer notebook parser (bsd3, data, library, program)2017-11-210.1.0.0MichalGajda
JuicyPixels-blp650.00BLP format decoder/encoder over JuicyPixels library (bsd3, codec, graphics, image, library, program)2026-10-171.0.0.0NCrashed
JuicyPixels-blurhash222.00Blurhash is a very compact represenation of a placeholder for an image (bsd3, graphics, image, library, program)2020-05-240.1.0.3smprts
KiCS520.03A compiler from Curry to Haskell (compiler, library, program)2012-07-020.9.3BerndBrassel, BjoernPeemoeller, CurryLanguage
KiCS-debugger130.01debug features for kics (debug, library, program)2009-10-230.1.1BerndBrassel
KiCS-prophecy100.01a transformation used by the kics debugger (debug, library, program)2009-10-230.1.1BerndBrassel
L-seed160.01Plant growing programming game (bsd3, game, library, program)2009-06-280.2JoachimBreitner
LC340.00LC-3 virtual machine (bsd3, language, program)2019-01-010.1.0.2DavidJohnson
LPFP370.00Code for the book Learn Physics with Functional Programming (bsd3, library, physics, program)2025-10-031.2.1ScottWalck
LPPaver80.00An automated prover targeting problems that involve nonlinear real arithmetic (formal-methods, library, math, mathematics, maths, mpl, program, theorem-provers, verification)2023-03-130.0.5.0JunaidRasheed
LR-demo60.00LALR(1) parsetable generator and interpreter (bsd3, library, parsing, program)2025-11-050.0.20251105AndreasAbel
LTS70.00LTS: Labelled Transition System (library, mit, program, state-machines)2020-04-080.1.0.0ajayeeralla
LambdaCalculator190.01A basic lambda calculator with beta reduction and a REPL (bsd3, language, program)2016-06-290.2ThomasDuBuisson
LambdaDB32.00On-memory Database using Lambda Function environment. (bsd3, database, library, program)2016-05-280.0.0.6Ailrun
LambdaHack2462.252A game engine library for tactical squad ASCII roguelike dungeon crawlers (bsd3, game, game-engine, library, program, roguelike)2023-10-300.11.0.1AndresLoeh, MikolajKonarski
LambdaINet120.01Graphical Interaction Net Evaluator for Optimal Evaluation (application, bsd3, program)2014-09-020.2.0.0PaulLiu
LambdaShell120.01Simple shell for evaluating lambda expressions (compilers-interpreters, program)2014-06-010.9.3RobertDockins
LazyVault (deprecated)70.01A simple sandboxing tool for Haskell packages. (deprecated, development, gpl, program)2013-02-06KevinVanRooijen
Learning150.01The most frequently used machine learning tools (bsd3, library, machine-learning, program)2018-02-260.1.0penkovsky
Level040.01A Snake II clone written using SDL. (game, gpl, program)2012-04-291.0MikeLedger
LinkChecker100.01Check a bunch of local html files for broken links (bsd3, program, web)2011-08-260.1JensStimpfle
LiterateMarkdown70.00Converter to convert from .lhs to .md and vice versa. (library, mit, productivity, program)2020-08-290.1.0.1FabianSchneider
LslPlus660.01An execution and testing framework for the Linden Scripting Language (LSL) (bsd3, language, program)2009-08-250.4.3RobertGreayer
Lykah80.01A static website and blog generator (library, mit, program, web)2017-01-260.0.2johannesgerer
MC-Fold-DP140.01Folding algorithm based on nucleotide cyclic motifs. (bioinformatics, gpl, library, program)2012-11-120.1.1.0ChristianHoener
MTGBuilder130.01Builds decks out of a meta (mit, program, unclassified)2015-09-280.2.0.1willfancher
MagicHaskeller420.02Automatic inductive functional programmer by systematic search (bsd3, language, library, program)2022-06-020.9.7.1SusumuKatayama
MazesOfMonad130.01Console-based Role Playing Game (bsd3, game, program)2014-09-021.0.9JeanPhilippeMoresmau
Mhailist20.01Haskell mailing list manager (bsd3, network, program)2010-04-300.0LarsKotthoff
MicroCabal130.00A partial Cabal replacement (apache, language, program)2026-06-030.5.10.0LennartAugustsson
MicroHs852.50A small compiler for Haskell (apache, language, program)2026-06-020.16.0.0LennartAugustsson
MiniAgda542.01A toy dependently typed programming language with type-based termination. (dependent-types, library, mit, program)2025-07-230.2025.7.23AndreasAbel
Moe50.01A FRP library based on signal functions. (bsd3, frp, library, program)2011-11-030.1XinyuJiang
MonadLab50.01Automatically generate layered monads (bsd3, library, monads, program)2009-01-290.0.2AdamProcter
Monadius600.012-D arcade scroller (game, program)2013-05-280.99GwernBranwen, HideyukiTanaka
Monadoro1142.00A minimalistic CLI Pomodoro timer. (library, mit, program, tools)2025-04-140.4.0.2patryk_kocielnik
Monaris700.01A simple tetris clone (bsd3, game, program)2014-08-200.1.8FumiakiKinoshita
Mondrian40.00Renders backgrounds & borders (gpl, graphics, library, program)2023-07-160.1.0.0alcinnz
MuCheck-HUnit240.01Automated Mutation Testing for HUnit tests (gpl, library, program, testing)2015-01-060.3.0.4RahulGopinath
MuCheck-Hspec230.01Automated Mutation Testing for Hspec tests (gpl, library, program, testing)2015-01-060.3.0.4RahulGopinath
MuCheck-QuickCheck130.01Automated Mutation Testing for QuickCheck tests (gpl, library, program, testing)2015-01-060.3.0.4RahulGopinath
MuCheck-SmallCheck70.01Automated Mutation Testing for SmallCheck tests (gpl, library, program, testing)2015-01-060.3.0.4RahulGopinath
MutationOrder160.00Most likely order of mutation events in RNA (bioinformatics, gpl, library, program)2017-10-240.0.1.0ChristianHoener
MyPrimes60.00Generate all primes (data, library, mit, program)2015-08-050.1.0.0afonsomatos
NGLess210.00NGLess implements ngless, a DSL for processing sequencing data (domain-specific-language, library, mit, program)2022-09-141.5.0luispedro
NGrams90.01Simple application for calculating n-grams using Google. (bsd3, natural-language-processing, program)2008-02-141.1JustinBailey
NXT420.01A Haskell interface to Lego Mindstorms NXT (lgpl, library, program, robotics)2016-02-230.2.5MitarMilutinovic
NXTDSL150.01Generate NXC Code from DSL (bsd3, compilers-interpreters, language, library, program)2013-08-310.4AlexanderThiemann
NanoID530.00NanoID generator (bsd3, data, library, program, random)2025-11-133.4.1.2MichelBoucey
NanoProlog280.01Very small interpreter for a Prolog-like language (bsd3, language, library, program)2011-12-220.3DoaitseSwierstra, JurrienStutterheim, joaopizani
NaperianNetCDF80.00Instances of NcStore for hypercuboids (bsd3, library, math, program)2019-04-180.1.0.1DominicSteinitz
NearContextAlgebra150.01Context Algebra of near (bsd3, math, program)2015-10-250.1.0.2jhahn
Neks70.01Simple networked key/value store (database, library, mit, program)2015-07-310.5.0.0wyager
Ninjas70.01Ninja game (bsd3, game, program)2013-10-170.1.0.0EricMertens
NoSlow180.01Microbenchmarks for various array libraries (bsd3, development, profiling, program)2010-02-150.2RomanLeshchinskiy
Nomyx (deprecated in favor of nomyx-server)590.01A Nomic game in haskell (bsd3, deprecated, game, program)2015-03-260.7.6CorentinDupont
Nussinov78260.01Nussinov78 using the ADPfusion library. (bioinformatics, gpl, library, program)2012-11-070.1.0.0ChristianHoener
ONC-RPC100.00ONC RPC (aka Sun RPC) and XDR library (apache, library, network, program)2022-11-110.2DylanSimon
OnRmt30.00Text UI library for performing parallel remote SSH operations (bsd3, library, program, system)2017-01-301.0.0.0KevinQuick
OpenAFP-Utils290.01Assorted utilities to work with AFP data streams (data, program, public-domain)2013-11-301.4.1.3AudreyTang
Ordinary140.00A Programming Language in Construction (bsd3, language, library, program)2018-01-080.2018.1.8MarisaVeryMoe
Oslo-Vectize (deprecated)40.01spam (bsd3, deprecated, program, spam)2018-09-160.2
PTQ170.01An implementation of Montague's PTQ. (natural-language-processing, program)2017-09-120.0.8MasahiroSakai
PageIO90.01Page-oriented extraction and composition library (bsd3, library, program, text)2008-08-010.0.3AudreyTang
PandocAgda (deprecated)110.01Pandoc support for literate Agda (bsd3, dependent-types, deprecated, library, program)2013-03-112.3.3.0.2PeterDivianszky
PastePipe280.01CLI for pasting to lpaste.net (gpl, library, program, utils)2015-04-251.8MateuszKowalczyk, RoganCreswick
Phsu130.01Personal Happstack Server Utils (gpl, program, web)2015-08-050.1.0.3utkarshl
PlayHangmanGame40.01Play Hangman Game (bsd3, game, program)2012-04-040.2HaishengWu
PlslTools70.01So far just a lint like program for PL/SQL. Diff and refactoring tools are planned (bsd3, pl-sql-tools, program)2008-12-020.0.2LarryLayland
Pollutocracy50.01An imaginary world (game, program)2013-01-281.0IsaacDupree
PortFusion230.01high-performance distributed reverse / forward proxy & tunneling for TCP (gpl, network, program, system)2012-08-191.2.1CetinSert
PropLogic140.02Propositional Logic (algorithms, bsd3, library, logic, program)2012-04-160.9.0.4DavidFox
PropRatt80.00Property-based testing framework for testing asynchronous FRP programs. (bsd3, library, program, testing)2026-09-180.2.0.1PatrickBahr
PropaFP110.01Auto-active verification of floating-point programs (formal-methods, library, math, mathematics, maths, mpl, program, theorem-provers)2023-03-120.1.2.0JunaidRasheed
Proper350.03An implementation of propositional logic in Haskell (bsd3, library, program, unclassified)2014-11-030.5.2.0dillonhuff
Pugs620.01A Perl 6 Implementation (bsd3, language, program, pugs)2015-08-156.2.13.20150815AudreyTang, JeffShaw
Pup-Events20.01A networked event handling framework for hooking into other programs. (gpl, library, networking, program, pup-events)2012-07-151.0DanielWilson
Pup-Events-Demo90.01A networked event handling framework for hooking into other programs. (demo, gpl, networking, program, pup-events)2012-08-151.3DanielWilson
QuickAnnotate320.02Annotation Framework (bsd3, development, library, program)2012-09-190.6ShayanNajd
R-pandoc120.00 (bsd3, library, program, text)2019-11-150.2.3CorentinDupont
RMP40.01Binding to code that controls a Segway RMP (bsd3, library, program, robotics, system)2010-05-230.0.2NoamLewis
RNAFold230.02RNA secondary structure prediction (bioinformatics, gpl, library, program)2013-12-061.99.3.4ChristianHoener
RNAFoldProgs120.01RNA secondary structure folding (bioinformatics, gpl, program)2010-09-230.0.0.3ChristianHoener
RNAdesign130.01Multi-target RNA sequence design (bioinformatics, gpl, library, program)2014-02-130.1.2.2ChristianHoener
RNAdraw60.01Draw RNA secondary structures (bioinformatics, gpl, library, program)2014-02-030.2.0.1ChristianHoener
RNAlien552.00Unsupervized construction of RNA family models (bioinformatics, gpl, library, program)2019-08-291.7.0FlorianEggenhofer
RNAwolf140.01RNA folding with non-canonical basepairs and base-triplets. (bioinformatics, gpl, library, program)2011-09-290.4.0.0ChristianHoener
RSolve102.00 (library, logic, mit, program, unification)2019-08-052.0.0.0ice1000
Raincat570.01A puzzle game written in Haskell with a cat in lead role (bsd3, game, program)2024-11-231.2.3MikhailPobolovets, SergeiTrofimovich
Randometer30.01Randomness intuition trainer (mit, personalgrowth, program)2014-10-250.1.0.1So8res
Ranka40.01HTTP to XMPP omegle chats gate. (network, program)2009-09-150.1OlegIvanov
Rasenschach310.01Soccer simulation (bsd3, game, program)2016-02-240.1.3.2MartinWoehrle
ReadArgs340.03Simple command line argument parsing (bsd3, command-line, library, program)2016-12-081.2.3NoahEasterly
Referees30.01A utility for computing distributions of material to review among reviewers. (gpl, library, program, utils)2014-11-110.0.0PabloCouto
ReplaceUmlaut70.01converting text to properly encoded german umlauts (library, program, text)2023-04-060.1.5.3andrewufrank
ReviewBoard200.01Haskell bindings to ReviewBoard (bsd3, development, library, program)2008-05-280.2.2AdamSmyczek
Ritt-Wu30.00Parallel implementation of Ritt-Wu's algorithm. (algorithm, bsd3, library, program)2020-02-120.1.0.0jsrqv
RollingDirectory50.01Limits the size of a directory's contents (file-manager, gpl, program, tools)2012-01-170.1FalcoHirschenberger
RtMidi761.51Haskell wrapper for RtMidi, the lightweight, cross-platform MIDI I/O library. (library, mit, program, sound)2023-08-140.8.0.0ejconlon, kohlrabi
SCRIPTWriter60.00ESCRIPT: a human friendly language for programming Bitcoin scripts (bitcoin, bsd3, language, library, program, script)2018-10-151.0.1RickKlomp
SGdemo100.01An example of using the SG and OpenGL libraries (graphics, program)2009-12-181.1NeilBrown
SJW90.01The Simple Javascript Wrench (bsd3, library, program, web)2022-02-130.1.2.4tissevert
SQLiteDAV50.00WebDAV server that maps an SQLite database to directories and files. (database, library, mit, program, web)2026-05-260.2.0.0adrian
SSTG442.00STG Symbolic Execution (bsd3, library, program, web)2017-08-170.1.1.7AntonXue
SVG2Q60.01Code generation tool for Quartz code from a SVG. (bsd3, parsing, program)2011-01-270.3JanGreve
SableCC2Hs70.01Generate a parser (in Haskell) with the SableCC parser generator. (bsd3, library, parsing, program)2012-06-130.0.1.0MarcFontaine
Saturnin80.00Saturnin CI / Job System (application-server, bsd3, library, program)2015-05-180.1.0.2yac
ScratchFs100.01Size limited temp filesystem based on fuse (gpl, program, system)2012-11-130.1.0.2FalcoHirschenberger
Scurry160.01A cross platform P2P VPN application built using Haskell. (bsd3, network, program)2009-01-240.0.3JohnVanEnk
SelectSequencesFromMSA100.00Selects a representative subset of sequences from multiple sequence alignment. (bioinformatics, gpl, library, program)2018-03-121.0.5FlorianEggenhofer
Semantique190.01Command-line tool for maintaining the Semantique database. (program, public-domain, system)2012-11-020.3.0DavidHimmelstrup
ShellCheck1042.254Shell script analysis tool (gpl, library, program, static-analysis)2025-08-040.11.0koala_man, vidarhol
Shpadoinkle-developer-tools90.00Chrome extension to aide in development (bsd3, library, program, web)2021-06-020.0.0.2fresheyeball
Shpadoinkle-examples90.00Example usages of Shpadoinkle (bsd3, program, web)2021-01-060.0.0.3fresheyeball
Shu-thing150.01A vector shooter game (bsd3, game, program)2018-03-151.1.4AlanHawkins, GwernBranwen
SimpleServer70.01A simple static file server, for when apache is overkill (library, mit, program, web)2017-06-250.1.1.2AnupamJain
Sit340.01Prototypical type checker for Type Theory with Sized Natural Numbers (dependent-types, library, program)2023-08-030.2023.8.3AndreasAbel
Snusmumrik (deprecated)50.01E-library directory based on FUSE virtual file system. (bsd3, deprecated, program, text)2010-03-200.0.1SergeyAstanin
SoccerFun520.02Football simulation framework for teaching functional programming (ai, bsd3, education, game, library, program)2015-12-020.5.3JanRochel
SoccerFunGL220.01OpenGL UI for the SoccerFun framework (ai, bsd3, education, game, library, program)2015-12-020.5.3JanRochel
SourceGraph420.01Static code analysis using graph-theoretic techniques. (development, program)2015-09-080.7.0.7IvanMiljenovic
SpaceInvaders210.01Video game (bsd3, game, program)2021-10-080.13.3GeorgeGiorgidze, IvanPerez, keera_studios_ci
SpacePrivateers80.01Simple space pirate roguelike (bsd3, game, program)2014-08-080.1.0.0tuturto
Stasis60.01A simple MVCC like library (bsd3, concurrency, library, program)2014-01-130.0.1zcourts
Strafunski-Sdf2Haskell120.01Converts SDF to Haskell (bsd3, language, program)2013-05-031.0.0.2JamesKoppel
SuffixStructures50.00Suffix array construction (bsd3, data, data-structures, library, program)2015-05-070.0.1.0ChristianHoener
TBC70.01Testing By Convention (bsd3, library, program, testing)2012-06-240.0.3PeterGammie
THSH150.00A "noDSL" approach to mixing shell scripting with Haskell programs using Template Haskell (library, mit, program, system)2024-10-150.0.0.5hellwolf
TLT242.01Testing in monads and transformers without explicit specs (lgpl, library, program, test)2022-09-300.5.0.0jpmrst
TORCS100.00Bindings to the TORCS vehicle simulator. (bindings, frp, library, program, simulation)2018-02-140.1.0.2MarkSantolucito
Tables80.01A client for Quill databases (bsd3, database, program)2014-04-260.1.0.2NatePisarski
Tablify170.01Tool to render CSV into tables of various formats (bsd3, program, text)2011-04-210.8.2DanielLyons
Tahin60.01Tahin Password Generator (bsd3, library, password, program)2016-04-060.1.2mtesseract
TastyTLT90.00Run TLT tests from Tasty (lgpl, library, program, test)2022-05-240.0.0.0jpmrst
TaxonomyTools60.01Tool for parsing, processing, comparing and visualizing taxonomy data (bioinformatics, gpl, program)2017-01-261.0.1FlorianEggenhofer
TeX-my-math220.02Render general Haskell math to LaTeX. Or: math typesetting with high signal-to-noise–ratio. (gpl, library, math, program)2023-04-260.203.0.0leftaroundabout
TernaryTrees630.01Efficient pure ternary tree Sets and Maps (bsd3, data-structures, library, program)2011-01-220.2.0.2AlexMason
Tic-Tac-Toe122.01Tic Tac Toe in your command line! (apache, game, program)2015-09-190.1.0.22016rshah
TimePiece110.01A simple tile-based digital clock screen saver (library, program, public-domain, screensaver)2014-05-160.0.5AudreyTang
Titim120.01Game for Lounge Marmelade (game, gpl, program)2015-03-250.2.3Jefffrey
Top70.02Constraint solving framework employed by the Helium Compiler. (constraints, library, program)2012-08-211.7JurriaanHage
TransformeR (deprecated)40.00eDSL in R for Safe Variable Transformarion (bsd3, deprecated, dsl, library, program, security, statistics)2016-08-040.1.0.0remy
TransformersStepByStep170.01Tutorial on monad transformers. (bsd3, development, program)2015-05-270.1.1.0MartinGrabmueller
TypeClass140.01Typing speed game (bsd3, game, program)2014-01-310.2.1JeanPhilippeMoresmau
TypeIlluminator70.01TypeIlluminator is a prototype tool exploring debugging of type errors/ (bsd3, compilers-interpreters, program)2008-02-190.0GwernBranwen
TypingTester170.01Command Line Typing speed tester (game, gpl, program)2014-08-180.2.0.0AlanHawkins
UMM500.01A small command-line accounting tool (finance, program)2010-09-250.3.1UweHollerbach
UTFTConverter150.00Processing popular picture formats into .c or .raw format in RGB565 (graphics, library, mit, program, text)2016-05-040.1.0.1cirquit
VKHS1880.01Provides access to Vkontakte social network via public API (bsd3, library, program, web)2019-01-151.9.2SergeyMironov
VRML40.00VRML parser and generator for Haskell (graphics, library, mit, program)2020-02-100.1.0.0junjihashimoto
Verba310.01A solver for the WordBrain game (game, mit, program)2016-01-100.1.2.0Jefffrey
Villefort1621.50Villefort is a task manager and time tracker (bsd3, library, program, web)2019-04-300.1.2.19AliceReuter
WAVE220.05WAVE audio file IO library (bsd3, data, library, program, sound)2020-04-020.1.6BartonMassey
WEditorBrick80.00Text-editor widget with dynamic line-wrapping for use with Brick. (apache, graphics, library, program)2020-04-200.2.0.1ta0kira
WL500gPControl110.01A simple command line tools to control the Asus WL500gP router (bsd3, network, program, ui)2009-10-280.3.4VasylPasternak
WL500gPLib60.01A simple library to access to the WL 500gP router from the Haskell code (bsd3, library, network, program)2009-10-150.3.1VasylPasternak
WashNGo80.01WASH is a family of EDSLs for programming Web applications in Haskell. (bsd3, library, program, web)2010-05-082.12.0.1MarcWeber
WeberLogic200.01Logic interpreter (bsd3, library, math, program)2014-03-170.1.2cameronbwhite
Webrexp170.01Regexp-like engine to scrap web data (bsd3, library, program, utility)2013-05-281.1.2VincentBerthoux
WordAlignment100.00Bigram word pair alignments. (gpl, library, linguistics, program)2017-03-140.2.0.0ChristianHoener
Wordlint230.01Plaintext prose redundancy linter. (library, program, text)2015-02-270.2.0.4bgbgbg
WringTwistree170.00Whole-message cipher and tree hash (bsd3, cryptography, library, program)2024-05-310.1.0.0PierreAbbat
XSaiga412.01An implementation of a polynomial-time top-down parser suitable for NLP (attribute-grammars, bsd3, library, memoization, natural-language-processing, parser-combinators, parsing, program, text)2020-10-071.7.0.0InBetweenNames
Xec50.01Gtk command launcher with identicon (bsd3, program, utils)2012-12-200.1.6DaikiHanda
YACPong60.01Yet Another Pong Clone using SDL. (game, mit, program)2010-05-300.1KorcanHussein
YamlReference680.01YAML reference implementation (library, program, text)2016-02-230.10.0OrenBenKiki
Yogurt-Standalone70.01A functional MUD client (bsd3, network, program)2009-04-100.4MartijnVanSteenbergen
ZMachine90.01A Z-machine interpreter (bsd3, game, program)2008-03-290.0GwernBranwen
a-piece-of-flake50.00Nix flake repository for everyone (bsd3, library, program, system)2026-03-170.0.1DaniilIaitskov
a50110.01Compare genome assemblies (bioinformatics, program)2013-07-230.5KetilMalde
abc-puzzle90.01Generate instances of the ABC Logic Puzzle. (bsd3, game, program)2014-08-010.2.1PatrickBahr
ac-library-hs791.50Data structures and algorithms (algorithms, data-structures, library, program)2026-04-111.5.3.2toyboot4e
accelerate-cublas130.01Basic Linear Algebra using native CUBLAS library (bsd3, library, math, program)2017-04-230.1HenningThielemann
accelerate-fourier-benchmark130.01Compare different implementations of the Fast Fourier Transform (bsd3, math, program)2017-04-230.0.0.1HenningThielemann
acid-state3082.529Add ACID guarantees to any serializable Haskell data structure. (database, library, program, public-domain)2026-10-290.17.0AdamGundry, AndreasAbel, DavidFox, DavidHimmelstrup, DavidJohnson, JeremyShaw
acme-box50.00A full featured empty project (acme, bsd3, library, program)2015-07-110.0.0.0twebb
acme-cuteboy40.00Maybe gives you a cute boy (acme, library, program, public-domain)2018-01-250.1.0.0chessai
acme-cutegirl112.01Maybe gives you a cute girl (acme, gpl, library, program)2014-01-270.2.0.0MateuszKowalczyk
acme-http180.01fastest Haskell PONG server in the world (bsd3, library, program, web)2016-08-050.2.3JeremyShaw
acme-inator50.01Evil inventions in the Tri-State area (acme, library, program, public-domain)2012-02-100.1.0.0MarkLentczner
acolyte-codegen130.00Generate acolyte API types from OpenAPI/Swagger specs (bsd3, library, program, web)2026-04-290.1.0.1joshburgess
activehs180.01Haskell code presentation tool (bsd3, documentation, education, program)2017-07-300.3.2PeterDivianszky, lspitzner, GaborPali, gombocarti
adblock2privoxy972.01Convert adblock config files to privoxy format (gpl, program, web)2026-08-083.0.1zubr, essandess
addLicenseInfo110.01Adds license info to the top of a file. (bsd3, development, program)2009-12-030.1JoeFredette
adobe-swatch-exchange160.01parse Adobe Swatch Exchange files and (optionally) output .css files with the colors (bsd3, library, program, web)2013-04-120.2.0JeremyShaw
advent-of-code-ocr210.00Parse Advent of Code ASCII art letters (bsd3, library, program, text)2022-12-140.1.2.1jle
aern2-mfun60.02Multi-variate real function optimisation and proving (bsd3, library, math, program)2022-07-140.2.9.0MichalKonecny
aeson-diff1052.06Extract and apply patches to JSON documents. (algorithms, bsd3, json, library, program, web)2026-03-121.1.0.15ThomasSutton, clintonmead, clinton, janus, velveteer
aeson-generics-typescript40.01Generates TypeScript definitions that match Generic Aeson encodings (bsd3, library, program, web)2023-12-130.0.0.1fresheyeball
aftovolio400.01An AFTOVolio implementation for creating texts with special phonetic / prosodic properties. (aftovolio, language, library, math, mit, music, poetry, program, rhythmicity)2025-05-280.8.0.0OleksandrZhabenko
afv200.01Infinite state model checking of iterative C programs. (bsd3, formal-methods, program)2010-03-310.1.1TomHawkins
ag-pictgen90.01Attribute Grammar picture generation (bsd3, development, program)2016-01-301.0.0.0AtzeDijkstra
agda-language-server490.00An implementation of language server protocal (LSP) for Agda 2. (development, library, mit, program)2026-10-279AndreasAbel, banacorn
agda-server (deprecated)90.01Http server for Agda (prototype) (bsd3, dependent-types, deprecated, program)2013-10-030.1.1PeterDivianszky
agda-snippets (deprecated in favor of Agda)190.01Render just the Agda snippets of a literate Agda file to HTML (bsd3, dependent-types, deprecated, library, program)2017-06-042.5.2LiamOConnorDavis
agda-unused110.00Check for unused code in an Agda project. (dependent-types, library, mit, program)2022-11-260.3.0msuperdock
agda2hs242.00Compiling Agda code to readable Haskell. (bsd3, compiler, language, program)2025-09-091.4jcockx
agda2lagda540.00Translate .agda files into .lagda.tex files. (dependent-types, development, program)2025-09-050.2025.9.5AndreasAbel
agda2train130.00Agda backend to generate training data for machine learning purposes. (agda, bsd3, library, machine-learning, program)2023-10-170.0.3.0omelkonian
agum450.01Unification and Matching in an Abelian Group (algebra, library, program)2019-10-172.8JohnRamsdell
ai-agent-diff-patch110.01Unified diff generation and fuzzy patch application for AI agents (library, mit, program, text)2026-06-190.0.2.0phoityne_hs
aip390.00Aeronautical Information Package (AIP) (aviation, bsd3, data, library, program)2019-03-040.1.3qfpl
aip-version130.00Version of AIP documents (aviation, bsd3, data, program)2024-11-180.0.0.3TonyMorris
ajhc392.01Haskell compiler that produce binary through C language (compiler, gpl, library, program)2013-12-180.8.0.10KiwamuOkabe
alea270.01a diceware passphrase generator (mit, program, utility)2017-08-030.5.3.0rnhmjoj
alex4282.251Alex is a tool for generating lexical analysers in Haskell (bsd3, development, program)2026-03-223.5.4.2AndreasAbel, JohnEricson, SimonMarlow
alfred-margaret320.02Fast Aho-Corasick string searching (bsd3, data, library, program, text)2026-05-082.1.1.1fatho, rkrzr
alga (deprecated)110.00Algorithmic automation for various DAWs (deprecated, gpl, language, library, program)2016-09-100.2.2mrkkrp
algebra-sql140.03Relational Algebra and SQL Code Generation (bsd3, database, library, program)2015-05-290.3.0.0AlexUlrich2
algo-s60.00An implementation of Knuth's algorithm S. (apache, data, library, program)2016-08-160.1.0.0EricRochester
algorithmic-composition-additional160.00Helps to create experimental music from a file (or its part) and a Ukrainian text. (Ukrainian, algorithmic-composition, language, library, mit, music, program, sound, sox)2022-08-170.2.0.0OleksandrZhabenko
align-audio160.00Find relative time displacement of two recordings of the same music (bsd3, program, sound)2026-07-110.0.0.2HenningThielemann
align-equal282.00Aligns text prefixes before '=' for consistent formatting (library, mit, program, text)2025-04-041.0.1.2JoonkyuPark
align-text90.01A simple unix filter to align text on specified substrings (mit, program, text)2015-01-130.1.0.1DanielChoi
allen52.00A monadic way of calculating relations between intervals of time. (algebra, bsd3, library, program)2023-09-060.1.0.0archaversine
alms480.01a practical affine language (bsd3, compilers-interpreters, program)2018-08-170.6.9JesseTov
alpha590.01A compiler for the Alpha language (bsd3, compiler, program)2013-01-011.0.15MarcCoiffier
alpino-tools (deprecated)360.01Alpino data manipulation tools (data, deprecated, library, natural-language-processing, program)2012-04-070.2.0DanielDeKok
alsa-gui250.01Some simple interactive programs for sending MIDI control messages via ALSA (bsd3, gui, music, program, sound)2019-08-090.1.0.1HenningThielemann
alsa-midi (deprecated in favor of alsa-seq)250.02Bindings for the ALSA sequencer API (MIDI stuff) (deprecated, library, music, program, sound)2010-09-200.4.0.1HenningThielemann
alsa-pcm-tests (deprecated in favor of alsa-pcm)60.01Tests for the ALSA audio signal library. (bsd3, deprecated, music, program, sound)2010-04-080.1HenningThielemann
alsa-seq-tests (deprecated in favor of alsa-seq)80.01Tests for the ALSA sequencer library. (bsd3, deprecated, music, program, sound)2009-04-270.1HenningThielemann
alto60.00Implement a menu experience fit for web users. (bsd3, library, program, web)2018-04-020davean
amazon-emailer (deprecated in favor of hworker-ses)130.01A queue daemon for Amazon's SES with a PostgreSQL table as a queue. (bsd3, deprecated, network, program)2014-08-170.4.0.0DanielPatterson
amazon-products100.01Connector for Amazon Products API (library, mit, program, web)2014-07-090.1.0.1andrewrademacher
amazonka-contrib-rds-utils92.00A Haskell equivalent of "aws rds generate-db-auth-token" (aws, library, mpl, program)2021-12-121.6.1.1avanov
ampersand330.01Toolsuite for automated design of business processes. (database-design, program)2015-10-113.1.0hanjoosten
amqp2402.2513Client library for AMQP servers (currently only RabbitMQ) (bsd3, library, network, program)2024-10-140.24.0HolgerReinhardt
amqp-utils1940.01AMQP toolset for the command line (gpl, network, program)2026-07-140.6.9.0woffs
amqp-worker200.00Type-safe AMQP workers (bsd3, library, network, program)2025-05-212.0.1seanhess
amrun190.01Interpreter for AM (compilers-interpreters, program)2020-01-170.0.0.7DanielSeidel, JanisVoigtlaender, OliverWestphal
anagrep70.00Find strings with permutations (anagrams) that match a regular expression (bsd3, library, program, text)2025-05-070.1.0.1DylanSimon
anansi520.03Simple literate programming preprocessor (development, gpl, library, program)2015-06-050.4.8JohnMillikin
anatomy40.01Anatomy: Atomo documentation system (bsd3, development, library, program)2011-02-070.4AlexSuraci
android-lint-summary90.00A pretty printer for Android Lint errors (apache, library, program, web)2015-06-300.2.1passy
angel430.01Process management and supervision daemon (bsd3, program, system)2015-07-170.6.2JamieTurner, MichaelXavier, NickPershyn
angle40.00A small, general-purpose programming language. (compilers-interpreters, gpl, library, program)2016-08-190.8.1.0GuiltyDolphin
animascii (deprecated)80.01text-file based ASCII animator (application, deprecated, gpl, program)2018-03-160.1.1.0fffaaa
animate-example110.01Animation for sprites (bsd3, game, program)2018-02-050.2.0jxv
animate-frames50.00Convert sprite frames to animate files (game, library, mit, program)2018-05-300.0.1jxv
animate-preview150.00Preview tool for sprite animation (bsd3, game, library, program)2018-05-270.1.2.4jxv
anitomata-aseprite400.00Code gen for Aseprite animations (game, library, mit, program)2026-05-230.1.1.5jship
anki-tools60.00Tools for interacting with Anki database (bsd3, database, library, program)2016-09-300.1.0.0zohl
annah90.00Medium-level language that desugars to Morte (bsd3, compiler, library, program)2016-04-241.0.0GabrielGonzalez
ansido50.00A terminal task manager built with Ansiform. (library, mit, program, user-interfaces)2026-10-251.0.0tralen
ansiform550.01Display formatting for command line interfaces. (library, mit, program, user-interfaces)2026-10-241.1.0.0tralen
antagonist810.01A web interface to Antisplice dungeons. (agpl, library, program, web)2016-04-040.1.0.30implementation
antfarm40.01Referring expressions for definitions (bsd3, library, natural-language-processing, program)2012-08-150.1.0.0EricKow
anticiv70.01This is an IRC bot for Mafia and Resistance. (agpl, library, network, program)2014-09-140.1.0.5implementation
antimirov40.01Define the language containment (=subtyping) relation on regulare expressions. (language, library, math, program)2009-01-300.1.0RickKaudewitz
antlrc130.01Haskell binding to the ANTLR parser generator C runtime library. (bsd3, library, parsing, program)2011-01-200.0.2MarkWright
apart100.00Get all your structure and rip it apart. (bsd3, control, data, library, program)2018-09-280.1.3iokasimovmt
apecs-brillo232.00Apecs' gloss package, but adapted for brillo. (bsd3, game-engine, library, program)2026-11-040.2.0.1execute214, AngelicaRakkaulikka
apelsin380.01Server and community browser for the game Tremulous (gpl, network, program)2013-06-261.2.3ChristofferOjeling
api-monobank142.00 (library, mit, program, web)2019-07-170.1.3.0sigrlami
api-rpc-accumulate30.00JSON-RPC API client for Accumulate blockchain (library, mit, program, web)2022-02-190.1.0.0sigrlami
api-rpc-factom130.00RPC API client for Factom (library, mit, program, web)2019-10-250.1.3.2sigrlami
api-tools800.03DSL for generating API boilerplate and docs (bsd3, cloud, distributed-computing, library, network, program, web)2026-08-200.11.0.0AdamGundry, AlfredoDiNapoli
apigen30.00FFI API generator for several languages (development, gpl, library, program)2023-11-230.0.1iphydf
apns-http2110.00Apple Push Notification service HTTP/2 integration. (bsd3, library, network, program)2020-01-140.1.1.0dridus
apotiki140.01a faster debian repository (library, mit, program, system)2014-01-240.5.2pyr
appc180.01app container types and tools (data, library, mit, program)2015-04-100.0.6wereHamster
apple152.00Apple array language compiler (agpl, array, language, library, program)2024-09-100.3.0.0vmchale
apply-refact862.02Perform refactorings specified by the refact library. (bsd3, development, library, program)2025-01-290.15.0.0mpickering, zliu41, fendor
approx72.00Easy-to-use emulation of approximate, ranges and tolerances in Haskell (library, mit, numeric, program)2021-02-150.1.0.1kishaloy
approx-rand-test (deprecated)240.01Approximate randomization test (deprecated, library, program, statistics)2013-12-170.2.1DanielDeKok
ar-timestamp-wiper50.01Wipes time stamps from .a files (like ar -D) (application, library, mit, program)2013-08-070.1.0NiklasHambuechen, PatrickChilton
arb-fft220.01Pure Haskell arbitrary length FFT library (bsd3, library, math, program)2016-04-240.3.0.0IanRoss
arbor-monad-logger170.00Simple logging library (library, logging, mit, program)2019-10-170.1.1.3arbornetworks
arbtt2540.01Automatic Rule-Based Time Tracker (desktop, gpl, program)2023-09-130.12.0.3JoachimBreitner
arcgrid70.00Parse ESRI/ArcInfo (ArcGrid) raster GIS files (bsd3, geo, library, program)2017-11-130.1.0.0nbrk
arcgrid-viewer40.01Simple viewer for ESRI/ArcInfo (ArcGrid) geospatial data (bsd3, geo, program)2017-11-130.1.0.0nbrk
arch-hs2330.00Distribute hackage packages to archlinux (distribution, library, mit, program)2026-10-170.16.2felixonmars, berberman
archive60.01A library and programs for creating hardlinked incremental archives or backups (bsd3, library, program, system)2012-06-121.2.12DavidFox, JeremyShaw
archiver480.01Archive supplied URLs in WebCite & Internet Archive (bsd3, documentation, library, network, program)2014-01-030.6.2.1GwernBranwen
archlinux-web30.01Website maintenance for Arch Linux packages (bsd3, distribution, library, program)2010-10-180.1MagnusTherning
archnews60.01Convert Arch Linux package updates in RSS to pretty markdown (bsd3, distribution, program)2009-02-220.2DonaldStewart
arghwxhaskell90.01An interpreter for the Argh! programming language in wxHaskell. (gpl, language, program)2015-12-030.8.2.0HenkJanVanTuyl, fgaz, GeorgeThomas, pranaysashank
argo720.00Parse and render JSON. (json, library, mit, program)2022-08-280.2022.8.28fozworth
arguedit130.01A computer assisted argumentation transcription and editing software. (argumentation, gpl, program)2014-07-120.1.0.1hrazel
ariadne400.01Go-to-definition for Haskell (language, mit, program)2014-11-010.1.2.3RomanCheplyaka, manzyuk
arion372.01Watcher and runner for Hspec (mit, program, testing)2015-04-010.1.0.8karun012
arion-compose322.00Run docker-compose with help from Nix/NixOS (apache, cloud, distributed-computing, distribution, library, network, program)2024-12-110.2.2.0RobertHensing
arithmetic330.01Natural number arithmetic (library, mit, number-theory, program)2020-03-111.6JoeHurd
armada70.01Space-based real time strategy game (game, program)2009-01-060.1TimothyCarstens
arpa50.00Library for reading ARPA n-gram models (bsd3, library, natural-language-processing, nlp, program, text)2015-04-220.0.0.0StefanFischer
array-forth340.02A simple interpreter for arrayForth, the language used on GreenArrays chips. (gpl, language, library, program)2015-01-170.2.1.4TikhonJelvis
arrayfire492.251Haskell bindings to the ArrayFire general-purpose GPU library (bsd3, library, math, program)2026-06-130.9.0.0DavidJohnson
arrowp100.01preprocessor translating arrow notation into Haskell 98 (development, program)2013-04-030.5.0.2RossPaterson
arrowp-qq320.01A preprocessor and quasiquoter for translating arrow notation (development, library, program)2019-12-290.3.0PepeIborra, riuga
arxiv-client-cli20.00Command line tool to search and download papers from arXiv.org (bsd3, cli, network, program)2025-10-280.1.0.0eiko
ascii-art-to-unicode110.00ASCII Art to Unicode Box Drawing converter (bsd3, library, program, unclassified)2017-04-160.1.0.1fmthoma
ascii-flatten30.00Flattens European non-ASCII characaters into ASCII (library, mit, program, text)2016-05-110.1.1.0DanielChoi
ascii-holidays132.50ASCII animations for the holidays! (gpl, graphics, program)2019-12-240.1.0.1TomMurphy
ascii-vector-avc50.01Process Ascii Vectors for Advantest 93k (data, gpl, library, program)2014-10-150.1.0.0m
ascii85x50.00Displays TI-85 variable files as text (bsd3, data, library, program)2025-06-160.2.4.1stepp
asciidiagram852.01Pretty rendering of Ascii diagram into svg or png. (bsd3, diagram, library, program, text)2019-06-191.3.3.3VincentBerthoux
asciidoc770.01AsciiDoc parser. (bsd3, library, program, text)2026-09-300.1.1.1JohnMacFarlane
asic50.01Action Script Instrumentation Compiler (compilers-interpreters, program)2011-03-011.2ArieMiddelkoop
asif592.00Library for creating and querying segmented feeds (library, mit, program, services)2020-01-176.0.4newhoggy, haskellworks, arbornetworks
asn1dump20.01Dump ASN1 structure (bsd3, debug, program)2014-02-230.1.0VincentHanquez
assembler40.01Haskell Assembler (bsd3, development, library, program)2010-10-010.0.1JeffDouglas
asset-bundle102.01A build-time Cabal library that bundles executables with assets (bsd3, bundle, distribution, library, program, zip)2019-09-280.1.0.2deech
astrds50.01an incomplete 2d space game (bsd3, game, program)2012-08-130.1.1AndresLoeh
astview (deprecated)380.01A GTK-based abstract syntax tree viewer for custom languages and parsers (bsd4, deprecated, language, program)2009-11-190.1.4SebastianMenge
async-manager140.01A thread manager for async (bsd3, concurrency, library, program)2014-05-300.1.1.0JonathanFischoff
aterm-utils110.01Utility functions for working with aterms as generated by Minitermite (bsd3, language, library, program)2013-06-180.2.0.2JasonDagit
atomo190.02A highly dynamic, extremely simple, very fun programming language. (bsd3, language, program)2012-04-110.4.0.2AlexSuraci
ats-format1260.02A source-code formatter for ATS (ats, bsd3, development, language, parser, program)2019-11-300.2.0.36vmchale
ats-pkg6050.00A build tool for ATS (ats, bsd3, development, library, program)2022-10-033.5.0.3vmchale
attic-schedule30.01A script I use to run "attic" for my backups. (bsd3, program, web)2017-01-280.2.0passy
attomail120.01Minimal mail delivery agent (MDA) for local mail with maildir support (bsd2, email---, network, program)2017-12-110.1.0.2phlummox
attoparsec-framer340.00Use Attoparsec to parse framed protocol byte streams (attoparsec, bsd3, library, network-api, parsing, program)2026-09-290.1.0.12adetokunbo
atuin30.01Embedded Turtle language compiler in Haskell, with Epic output (bsd3, compilers-interpreters, program)2010-12-170.1.1EdwinBrady
augeas590.01A Haskell FFI wrapper for the Augeas API (library, program, system)2012-03-280.6.1JudeNagurney
augur150.01Renaming media collections in a breeze. (bsd3, program, text)2008-11-172008.11.17DavidHimmelstrup
aura1190.00A secure package manager for Arch Linux and the AUR. (gpl, library, program, system)2024-07-163.2.10fosskers
autoexporter1142.04Automatically re-export modules. (library, mit, program, utility)2026-01-142.0.0.17fozworth
automaton300.04Effectful streams and automata in coalgebraic encoding (library, mit, program, streaming)2026-06-071.8turion
autonix-deps-kf5 (deprecated)80.01Generate dependencies for KDE 5 Nix expressions (bsd3, deprecated, library, nix, program)2015-06-250.3.0.0ThomasTuegel
autoproc120.01EDSL for Procmail scripts (bsd3, library, program, system)2016-08-130.2.1GwernBranwen, JasonDagit
avahi190.01Minimal DBus bindings for Avahi daemon (http://avahi.org) (bsd3, library, network, program)2018-09-170.2.0IlyaPortnov
avatar-generator90.01A simple random avatar icon generator (bsd3, graphics, program)2015-09-220.1.0.1IvanPerez, keera_studios_ci
aviation-navigation130.00Aviation Navigation functions (bsd3, library, program, test)2025-11-070.1.0.2TonyMorris
avro-piper210.00Tool for decoding avro (bsd3, data, library, program)2020-01-131.0.3newhoggy, haskellworks
avwx310.00Parse aviation weather reports (aviation, library, mit, program)2020-08-030.3.0.3hc
aws-academy-grade-exporter30.00Export grades from AWS Academy to different formats (mit, program, text)2025-06-150.1.0.0aloussase
aws-cloudfront-signed-cookies492.00Generate signed cookies for AWS CloudFront (aws, cloud, library, mit, network, program)2025-01-210.2.0.13chris_martin, Monoid_Mary
aws-easy120.00Helper function and types for working with amazonka (library, mit, network, program)2021-11-020.1.0.3rcook
aws-ec2280.01AWS EC2/VPC, ELB and CloudWatch client library for Haskell (aws, bsd3, cloud, distributed-computing, library, network, program, web)2017-05-180.3.7AmitLevy, DavidTerei, IanRoss, VladimirKirillov
aws-ec2-knownhosts90.00Capture and manage AWS EC2 known_host pubkeys (aws, bsd3, library, network, program)2017-11-270.1.0.0LukeHoersten
aws-kinesis-client480.01A producer & consumer client library for AWS Kinesis (apache, cloud, library, program)2015-05-070.4.0.2JonSterling, larsk
aws-kinesis-reshard50.01Reshard AWS Kinesis streams in response to Cloud Watch metrics (apache, cloud, library, program)2015-01-220.1.0.1JonSterling
aws-lambda-runtime70.00Haskell on AWS Lambda Runtime API (apache, aws, development, library, program)2020-01-080.0.0.1phadej
aws-mfa-credentials60.01Keep your AWS credentials file up to date with MFA-carrying credentials (apache, config, program)2017-05-190.1.0.0shlevy
aws-performance-tests140.01Performance Tests for the Haskell bindings for Amazon Web Services (AWS) (aws, cloud, distributed-computing, library, mit, network, program, web)2014-09-020.1.1larsk
aws-spend-summary390.00Extract recent daily AWS costs (aws, gpl, library, program)2025-08-100.3.0.1danielrolls
awsspendsummary (deprecated in favor of aws-spend-summary)80.00Extract recent daily AWS costs (aws, deprecated, gpl, library, program)2024-11-030.1.0.1danielrolls
axel590.00The Axel programming language. (bsd3, language, library, lisp, macros, program, transpiler)2025-04-070.0.13jgrosso256
aztecs-glfw90.01GLFW backed for Aztecs (bsd3, game-engine, library, program)2026-01-260.2.0matthunz
b92502.01A tool and library for building virtual machine images. (development, library, mit, program)2022-03-283.2.3SvenHeyll
babylon80.01An implementation of a simple 2-player board game (game, program)2014-06-260.3PedroVasconcelos
backblaze-b2-hs70.00A client library to access Backblaze B2 cloud storage in Haskell. (bsd3, cloud, library, network, program)2019-07-240.1.0.0AdityaManthramurthy
backdropper90.01Rotates backdrops for X11 displays using Imagemagic. (library, program, unclassified)2009-08-181.2YannGolanski
backstop72.00Backstop a target directory by source directories (development, gpl, library, program)2019-11-041.3.0.354mdgabriel
bacteria100.01braindead utility to compose Xinerama backgrounds (graphics, program)2009-11-081.1DanielWagner
baikai970.017Unified Haskell interface for multiple AI providers (ai, bsd3, library, program)2026-11-030.10.1.0shinzui
baikai-agent350.00Unattended coding-agent runs for the Baikai abstraction (ai, bsd3, library, program)2026-10-250.2.0.4shinzui
bake370.01Continuous integration system (bsd3, development, library, program)2016-10-280.5NeilMitchell
bamboo-launcher190.01bamboo-launcher (program, web)2010-02-242010.2.25JinjingWang
bamstats150.01A program to extract various information from BAM alignmnet files. (bioinformatics, library, program)2013-10-180.4KetilMalde
barbly80.00Create status bar menus for macOS from executables (bsd3, program, system)2025-07-140.2.0.0lukec
barchart110.01Creating Bar Charts in Haskell (bsd3, graphics, library, program)2011-05-060.1.1.1SebastianFischer
barley100.01A web based environment for learning and tinkering with Haskell (program, web)2011-02-120.3.0.2JohanTibell
base91340.00A Generic Base91 Encoder & Decoder (codec, library, mit, program)2015-07-112.1.0ajg
baseless20.00baseless claims (base, library, mit, program)2025-12-081.0.0Jappie
baserock-schema230.00Baserock Definitions Schema (bsd3, data, library, program)2018-07-030.0.3.5locallycompact
baskell90.01An interpreter for a small functional language (compilers-interpreters, program)2009-01-180.1.1GwernBranwen
batch-rename340.01Make Linux or MacOS do things like "rename *.mp3 *.mp4" (program, public-domain, system)2016-09-140.1.1.0uppet
batchd80.01Batch processing toolset for Linux / Unix (bsd3, program, system)2022-02-060.1.1.0IlyaPortnov
battleship-combinatorics180.00Compute number of possible arrangements in the battleship game (bsd3, library, math, program)2026-06-020.0.1.2HenningThielemann
bazel-coverage-report-renderer50.00HTML Coverage Reports for Rules_Haskell (apache, build-tool, program)2019-05-230.1.0MathieuBoespflug, Profpatsch, SebastianKazenbrootGuppy
bazel-runfiles110.00Locate Bazel runfiles location (apache, build-tool, library, program)2020-04-250.12MathieuBoespflug, shmish111
bdcs420.01Tools for managing a content store of software packages (distribution, lgpl, library, program)2018-05-160.6.1clumens, dshea
bdcs-api180.00BDCS API Server (gpl, library, network, program)2018-06-220.1.3clumens
bdo90.01Update CSS in the browser without reloading the page. (bsd3, library, program, web)2013-09-111.0.1ChrisDone
beam-automigrate332.00DB migration library for beam, targeting Postgres. (bsd3, database, library, program)2025-07-010.1.7.0CaleGibbard, RyanTrinkle, abrar, madeline_os
bearlibterminal40.00Low-level Haskell bindings to the BearLibTerminal graphics library. (game, game-development, game-engine, graphics, library, mit, program)2025-03-160.1.0.1PPKFS
beautifHOL80.01A pretty-printer for higher-order logic (program, text)2009-01-210.11LeePike
bech32632.08Implementation of the Bech32 cryptocurrency address format (BIP 0173). (apache, library, program, web)2026-04-201.1.11ErikDeCastroLopo, JonathanKnowles, rvl, KtorZ, KingWilliamNoel
bein (deprecated)190.01Bein is a provenance and workflow management system for bioinformatics. (application, deprecated, gpl, program)2010-05-280.3.3FrederickRoss
bench720.01Command-line benchmark tool (bsd3, program, system)2024-04-151.0.13GabrielGonzalez
bench-show212.01Show, plot and compare benchmark results (benchmarking, bsd3, library, performance, program)2022-02-020.3.2harendra, adithyaov
benchpress970.05Micro-benchmarking with detailed statistics. (bsd3, library, program, testing)2025-08-090.2.3.0JohanTibell, willsewell
benign20.02A library for benign effects (library, mit, program, unclassified)2025-05-230.1.0aspiwack
berp61.251An implementation of Python 3. (bsd3, language, library, program)2010-05-310.0.2BerniePope
betacalendars-calendar-layout20.00Pure calendar-grid topology and physical print-layout algebra (data, library, mit, program, time)2026-10-070.1.0.0mateopedersen
betris350.00A horizontal version of tetris for braille users (bsd3, game, library, program)2023-10-030.2.3.1mlang
bglib140.00Implementation of the BGAPI serial protocol (library, mit, program)2020-12-233.0.0.0tamasFabian
bhoogle420.01Simple terminal GUI for local hoogle. (development, program, terminal)2025-04-180.1.4.4andrevdm
bibdb180.01A database based bibliography manager for BibTeX (mit, program, text)2016-11-180.5.3cacay
bidirectionalization-combined130.01Prototype Implementation of Combining Syntactic and Semantic Bidirectionalization (ICFP'10) (language, program, public-domain)2010-09-270.1.0.1JoachimBreitner
billboard-parser120.01A parser for the Billboard chord dataset (lgpl, library, music, program)2013-01-171.0.0.1BasDeHaas
billeksah-main60.01Leksah plugin base (control, program)2011-11-291.0.0JuergenNicklischFranken
billeksah-main-static40.01Leksah plugin base (control, program)2011-11-291.0.0JuergenNicklischFranken
binance-exports102.00Generate CSV Exports of your Binance Trade History. (bsd3, console, finance, library, program, web)2023-06-240.1.2.0lysergia
bindings-codec2100.01Very low-level FFI bindings for Codec2 (bindings, codec, ffi, gpl, library, program)2014-10-310.1.1.0RickyElrod
bindings-hamlib40.01Hamlib bindings for Haskell (ffi, lgpl, library, program)2014-08-130.1.0.0RickyElrod
bindings-saga-cmd150.01Wrapping saga_cmd (gpl, library, math, program)2015-06-160.1.1.1michelk
bindings-sipc80.01Low level bindings to SIPC. (library, program, security-)2012-03-021.1JustinEthier
binembed140.01Embed data into object files. (bsd3, distribution, library, program)2015-04-080.1.0.3ClaudeHeilandAllen
binembed-example130.01Example project using binembed to embed data in object files. (bsd3, distribution, program)2015-04-080.1.0.3ClaudeHeilandAllen
binsm130.00binary files splitter and merger (program, tools)2022-08-160.1.3SergeyAlirzaev
biopsl260.01Library and executables for working with PSL files (bioinformatics, library, program)2012-11-190.4KetilMalde
birch-beer880.01Plot a colorful tree. (bioinformatics, gpl, library, program)2022-10-060.4.2.1GregorySchwartz
bird910.01A simple, sinatra-inspired web framework. (bsd3, library, program, web)2010-08-230.0.19MattParker
bisc270.00A small tool that clears cookies (and more). (gpl, program, utility)2022-01-110.4.1.0rnhmjoj
bisect-binary70.01Determine relevant parts of binary data (development, mit, program)2017-12-050.1.0.1JoachimBreitner
bishbosh1100.00Plays chess. (game, gpl, library, program)2021-12-260.1.4.0AlistairWard
bitcoind-regtest70.00A library for working with bitcoin-core regtest networks (bsd3, library, program, unclassified)2020-11-010.2.0.0IanShipman
bitly-cli (deprecated)80.01A command line tool to access bit.ly URL shortener. (bsd3, deprecated, program, utils, web)2011-12-080.1.2SergeyAstanin
bitspeak140.01Proof-of-concept tool for writing using binary choices. (accessibility, program)2011-09-230.0.3MauricioAntunes
bittrex (deprecated)360.00Bindings for the Bittrex API (bsd3, deprecated, library, program, web)2018-01-080.6.0.0DavidJohnson
bkr270.01Backup utility for backing up to cloud storage services (S3 only right now) (backup, bsd3, library, program, system)2012-06-120.1.2MichaelSmietana
bla (deprecated)150.01a stupid cron (bsd3, deprecated, program, system)2009-10-202009.10.20JinjingWang
black-jewel50.01The pirate bay client. (application, gpl, program)2013-05-210.0.0.1DmitryBogatov
blagda100.00Shake frontend for Agda blogging (agpl, blog, library, program)2022-03-020.1.0.1isovector
blakesum-demo (deprecated)20.01The BLAKE SHA-3 candidate hashes, in Haskell (bsd3, cryptography, deprecated, program)2011-07-250.5KevinCantu
blatex342.01Blog in LaTeX (mit, program, web)2016-05-150.1.0.92016rshah
blaze-from-html360.01Tool to convert HTML to BlazeHtml code. (bsd3, program, text)2017-01-200.4.0.1JasperVanDerJeugt
ble380.00Bluetooth Low Energy (BLE) peripherals (bsd3, library, program, unclassified)2017-12-050.4.2jkarni, scottmurphy09
blindpass92.00Password entry tool (gpl, library, program, utilities)2020-12-110.1.0jlamothe
blink1190.01Control library for blink(1) LED from ThingM (bsd3, hardware, library, program)2014-12-040.4DylanSimon
blip80.01Python to bytecode compiler. (bsd3, language-, program)2013-06-210.2.1BerniePope
blockhash40.00Blockhash perceptual image hash algorithm (bsd3, library, program, web)2016-07-190.1.0.0kseo
blogination (deprecated)160.01Very simple static blog software (bsd3, deprecated, library, program, web)2009-02-260.5ChrisDone
bloohm80.00visual bloom filter for neotrellis m4 output (bsd3, embedded, library, program)2024-05-051.0.0.2ShaeErisson
blosum240.00BLOSUM generator (bioinformatics, gpl, library, program)2016-11-300.1.1.4GregorySchwartz
bloxorz240.01OpenGL Logic Game (game, program)2014-07-230.1.2ViktorDevecseri
blubber60.01The blubber client; connects to the blubber server. (game, gpl, program)2015-06-300.0.1alexander
blubber-server70.00The blubber server, serves blubber clients. (agpl, game, library, program)2015-06-300.0.1alexander
blucontrol570.00Configurable blue light filter (bsd3, library, program, system)2024-01-160.7.1.0jumper149
bludigon (deprecated in favor of blucontrol)130.00Configurable blue light filter (bsd3, deprecated, library, program, system)2020-08-100.1.1.0jumper149
bluetile360.01full-featured tiling for the GNOME desktop environment (bsd3, program, system)2011-11-260.6JanVornberger
bluetileutils (deprecated in favor of bluetile)70.01Utilities for Bluetile (bsd3, deprecated, program, utils)2009-09-030.2JanVornberger
blunk-hask-tests (deprecated)60.01spam (bsd3, deprecated, program, spam)2018-09-160.2
blunt (deprecated)901.51Convert between pointfree and pointful expressions. (deprecated, library, mit, program, web)2015-04-141.0.2fozworth
bm130.00open bookmarks and queries from the command line (library, mit, program, utils)2026-05-240.3.0.0TravisCardwell
bnb-staking-csvs172.00Generate CSV Exports of Your BNB Staking Rewards. (bsd3, console, finance, library, program, web)2024-02-040.2.2.0lysergia
boardgame30.00Modeling boardgames (game, library, mit, model, program)2021-04-190.0.0.1MartenAsberg
bogocopy70.01Copy a directory tree, making zero-size sparse copies of big files. (bsd2, file-manager, program, system-tools, tools)2017-01-050.1.0.2phlummox
bogre-banana70.01 (bsd3, game-engine, library, program)2013-03-310.0.1DavidEichmann
boilerplate130.00Generate Haskell boilerplate. (building, gpl, library, program)2023-05-220.0.3tseenshe
boltzmann-brain170.00Analytic sampler compiler for combinatorial systems. (bsd3, library, math, program)2019-12-091.6mbendkowski
bond (deprecated)860.01Bond schema compiler and code generator (code-generation, compiler, deprecated, language, library, mit, program)2024-07-150.13.0.0chwarr, jdupej9000
bond-haskell-compiler160.01Bond code generator for Haskell (bsd3, language, library, program)2016-11-260.1.5.0blaze
bookkeeper230.01Anonymous records and overloaded labels (bsd3, data-structures, library, program, records)2017-12-170.2.5jkarni, bandali
boomange670.01A bookmarks manager with an HTML generator (gpl, program, web)2018-12-080.1.3.7mgmillani
boomslang110.01Boomshine clone (game, program, public-domain)2012-06-040.0.4BrianLewis
boomwhacker120.00Convert MIDI file to play-along boomwhacker animation (bsd3, music, program, sound)2026-04-050.0.2.1HenningThielemann
boopadoop90.00Mathematically sound sound synthesis (library, mit, music, program)2020-01-030.0.0.2lazersmoke
boots-app340.02Factory for quickly building an application (application, configuration, health, library, logger, mit, program, random)2019-09-030.2.0.1leptonyu
boring-game110.00An educational game (bsd3, library, program, web)2017-02-090.1.0.1checkraiser
boring-window-switcher190.00A boring window switcher. (bsd3, graphics, library, program)2018-03-150.1.0.5debugito
botpp50.01Build tool for Lambdabot (development, library, program, web)2008-08-190.1GwernBranwen
bottom100.00Encoding and decoding for the Bottom spec. (apache, codec, library, program)2021-04-020.2.0.0leo
bowntz150.01audio-visual pseudo-physical simulation of colliding circles (demo, gpl, program)2019-08-282ClaudeHeilandAllen
box-socket640.02Box websockets (bsd3, library, program, web)2026-01-100.5.3.0tonyday567
braid100.01Types and functions to work with braids and Khovanov homology. (bsd3, library, math, program)2016-01-180.1.0.0saltza
brain-bleep80.01primitive imperative language (bsd3, language, program)2019-05-220.1.0.2AlanHawkins
brainfuck180.03Brainfuck interpreter (compilers-interpreters, library, program)2023-11-150.1.0.4GwernBranwen, abbradar, ncfavier
brainfuck-tut230.01A simple BF interpreter. (bsd3, language, library, program)2016-12-300.7.0.2alleledev
brainheck280.00Brainh*ck interpreter in haskell (bsd3, library, program, web)2018-09-050.1.0.10vmchale
brassica200.00Featureful sound change applier (bsd3, library, linguistics, program)2024-10-131.0.0bradrn
breakout50.01A simple Breakout game implementation. (game, program)2009-10-310.0.2EyalLotem
breve750.01a url shortener (gpl, program, web)2024-06-300.5.1.0rnhmjoj
brians-brain80.01A Haskell implementation of the Brian's Brain cellular automaton (bsd3, game, program)2009-10-150.0.1WillDonnelly
brick-calendar80.00Calendar widget for the Brick TUI library (console, library, mit, program, tui, user-interfaces)2025-04-230.2.0.0ldgrp
brillig60.01Simple part of speech tagger (bsd3, library, natural-language-processing, program)2011-09-030.3.1EricKow
brillo-examples140.00Examples using the Brillo library (graphics, mit, program)2026-11-032.1.0adrian
brillo-export80.00Export Brillo pictures to png, bmp, tga, tiff, gif, svg and juicy-pixels-image (graphics, library, mit, program)2026-11-030.2.1.0adrian
brillo-juicy120.00Load any image supported by Juicy.Pixels in your brillo application (bsd3, graphics, library, program)2026-11-030.3.1adrian
brittany1070.01Haskell source code formatter (agpl, language, library, program)2022-01-130.14.0.2lspitzner, fozworth, dukerutledge
brok362.00Finds broken links in text files (bsd3, command-line-tools, library, program)2020-07-271.1.0smallhadroncollider
btc-lsp100.00Lightning service provider (bitcoin, bsd3, finance, library, lightning, network, payments, program)2022-07-220.1.0.0coingaming
buchhaltung300.01Automates most of your plain text accounting data entry in ledger format. (finance, library, mit, program)2018-02-040.0.7johannesgerer
buffer-pipe130.01Read from stdin and write to stdout in large blocks (bsd3, console, program)2016-01-110.0HenningThielemann
buffet110.00Assembles many Dockerfiles in one. (development, library, mit, program)2020-11-081.0.1evolutics
build-env230.00Compute, fetch and install Cabal build plans into a local environment (bsd3, distribution, library, program)2024-08-221.2.0.0sheaf
buildbox-tools200.01Tools for working with buildbox benchmark result files. (bsd3, development, program, testing)2012-02-031.5.3.1BenLippmeier
buildwrapper900.01A library and an executable that provide an easy API for a Haskell IDE (bsd3, development, library, program)2015-01-260.9.1JeanPhilippeMoresmau
bulletproofs240.02Bulletproofs are short zero-knowledge proofs without a trusted setup. (cryptography, library, program)2019-09-301.1.0sdiehl
bumper320.01Automatically bump package versions, also transitively. (bsd3, development, program)2025-10-100.7.0.0AdamBergmark, BramSchuur, ErikHesselink, ArtemPelenitsyn
bunz310.00CLI tool to beautify JSON string. (cli, json, library, mit, program)2019-02-270.0.9sendyhalim
bureaucromancy90.00Parse webforms & render to interactive hypertext (gpl, library, program, web)2024-01-190.1.0.2alcinnz
burnt-explorer320.01List OP_RETURN cryptocurrency transaction outputs. (apache, cryptocurrency, program)2018-07-022.0.0KrzysiekJ
bustle950.01Draw sequence diagrams of D-Bus traffic (desktop, lgpl, network, program)2020-07-310.8.0WillThompson, pwithnall
butterflies110.00butterfly tilings (gpl, graphics, library, program)2018-11-060.3.0.2ClaudeHeilandAllen
buttplug-hs-core140.00Client library for buttplug.io (bsd3, hardware, library, program)2021-10-260.1.0.1sullyj3
bytepatch160.00Patch byte-representable data in a bytestream (cli, library, mit, program)2023-02-150.4.1raehik
c-mosquitto200.00Simpe mosquito MQTT binding able to work with the Amazons IoT (bsd3, library, program)2019-10-240.1.7.0tolysz
c0check110.01Simple C0 Syntax Check (language, program)2013-01-040.2DanielSeidel, JanisVoigtlaender
c2ats82.00Translate C code into ATS (gpl, language, library, program)2016-09-170.1.0.1KiwamuOkabe
c2hs1560.01C->Haskell FFI tool that gives some cross-language type safety (development, gpl, program)2021-06-130.28.8DuncanCoutts, IanRoss, deech
c2hsc470.01Convert C API header files to .hsc and .hsc.helper.c files (bsd3, development, library, program)2017-12-090.7.1JohnWiegley
cab1100.01A maintenance command of Haskell cabal packages (bsd3, distribution, library, program)2026-10-270.2.23KazuYamamoto
cabal-add190.00Extend Cabal build-depends from the command line (bsd3, development, library, program)2026-07-010.2.1Bodigrim
cabal-audit120.01Check how up-to-date your .cabal dependencies are. (distribution, mit, program)2013-09-080.3.0.0JudeTaylor
cabal-bounds1572.01A command line program for managing the dependency versions in a cabal file. (bsd3, development, library, program, utils)2025-09-222.7.0DanielTrstenjak
cabal-buck2390.00Build a Cabal project with buck2 (the `cabal buck2` external command) (bsd3, build-tool, library, program)2026-11-040.5.0.0SimonMarlow
cabal-cache1462.00CI Assistant for Haskell projects (bsd3, development, library, program)2025-01-221.2.0.0newhoggy, haskellworks, maerwald
cabal-cargs860.01A command line program for extracting compiler arguments from a cabal file. (bsd3, development, library, program, utils)2025-09-221.8.0DanielTrstenjak
cabal-clean320.00Remove outdated cabal build artefacts from `dist-newstyle`. (bsd3, development, program)2023-06-090.2.20230609AndreasAbel
cabal-constraints50.01Repeatable builds for cabalized Haskell projects. (development, distribution, mit, program)2013-12-080.0.0.1BenArmston
cabal-db582.251query tools for the local cabal database (bsd3, program, tools)2015-03-110.1.12VincentHanquez
cabal-debian4191.751Create a Debianization for a Cabal package (bsd3, debian, distribution, library, program, system)2026-08-255.5.1ClintAdams, DavidFox
cabal-dependency-licenses290.01Compose a list of a project's transitive dependencies with their licenses (bsd3, distribution, program)2017-01-220.2.0.0JasperVanDerJeugt
cabal-dev (deprecated in favor of cabal-install)400.01Manage sandboxed Haskell build environments (bsd3, deprecated, development, program)2013-02-280.9.2JonathanDaugherty, JoshHoyt, RoganCreswick
cabal-dir190.01show dist dir of 'cabal copy/install' (bsd3, distribution, program)2013-12-240.1.0.4YoshikuniJujo
cabal-edit60.00Cabal utility (development, mit, program)2020-07-210.1.0.0sdiehl
cabal-file100.00Cabal file access (bsd3, distribution, library, program)2020-11-130.1.1JensPetersen
cabal-fix (deprecated in favor of cabal-gild)70.00Fix for cabal files. (bsd3, deprecated, distribution, library, program)2024-10-120.1.0.0tonyday567
cabal-flatpak532.00Generate a FlatPak manifest from a Cabal package description (bsd3, distribution, program)2026-05-210.1.3HenningThielemann, hecate
cabal-fmt272.00Format .cabal files (development, library, program)2024-04-270.1.12phadej
cabal-ghci (deprecated in favor of cabal-install)200.01Set up ghci with options taken from a .cabal file (bsd3, deprecated, development, library, program)2013-08-090.3EtienneLaurin
cabal-gild1920.00Formats package descriptions. (development, library, mit, program)2026-08-171.8.4.2fozworth
cabal-graphdeps160.01Generate graphs of install-time Cabal dependencies (development, mit, program)2015-10-120.1.3JohnMillikin
cabal-hoogle152.00generate hoogle database for cabal project and dependencies (bsd3, development, library, program)2026-01-103.16.0.0kokobd
cabal-info40.00Read information from cabal files (development, library, mit, program)2017-05-140.2.1barrucadu
cabal-install6262.56The command-line interface for Cabal and Hackage. (bsd3, distribution, library, program)2026-10-133.18.2.0MikolajKonarski, fffaaa, ArtemPelenitsyn, geekosaur
cabal-install-bundle150.01The (bundled) command-line interface for Cabal and Hackage. (bsd3, distribution, program)2013-12-191.18.0.2.1BartoszCwiklowski
cabal-install-ghc72100.01Temporary version of cabal-install for ghc-7.2 (bsd3, distribution, program)2011-12-050.10.4TonyHannan
cabal-install-ghc74 (deprecated in favor of cabal-install)60.01Temporary version of cabal-install for ghc-7.4 (bsd3, deprecated, distribution, program)2012-03-050.10.4AndreasAbel
cabal-macosx452.254Cabal support for creating Mac OSX application bundles. (bsd3, distribution, library, program)2019-12-260.2.4.2EricKow, dfrancesconi
cabal-matrix160.00Matrix builds for cabal (bsd3, development, library, program)2026-06-081.0.3.0mniip
cabal-meta890.01build multiple packages at once (bsd3, development, library, program)2015-03-260.4.1.3GregWeber
cabal-mon70.01A monitor for cabal builds (development, mit, program)2016-08-121.0.2IavorDiatchki
cabal-nirvana (deprecated)340.01Avoid Cabal dependency hell by constraining to known good versions. (deprecated) (bsd3, deprecated, distribution, program)2014-03-200.2.2.1MichaelSnoyman
cabal-plan-bounds220.00Derives cabal bounds from build plans (bsd2, distribution, program)2024-04-280.1.6.1JoachimBreitner, sellout
cabal-progdeps40.01Show dependencies of program being built in current directory (bsd3, distribution, program)2012-01-141.0KevinQuick
cabal-rpm5522.01RPM packaging tool for Haskell Cabal-based packages (distribution, gpl, program)2026-02-192.3.2BryanOSullivan, JensPetersen
cabal-scaffold70.00 (bsd3, library, program, unclassified)2024-09-110.1.0.0HiromiIshii
cabal-setup80.01The user interface for building and installing Cabal packages (bsd3, distribution, program)2007-10-211.2.1DuncanCoutts
cabal-sign250.01Sign and verify Cabal packages. (bsd3, development, program)2013-02-020.4.1.0ChrisDone
cabal-sort790.01Topologically sort cabal packages (bsd3, distribution, program)2026-06-140.1.2.3HenningThielemann
cabal-src (deprecated in favor of stack)440.01Alternative install procedure to avoid the diamond dependency issue. (bsd3, deprecated, distribution, program)2016-10-100.3.0.2MichaelSnoyman
cabal-test80.01Automated test tool for cabal projects. (bsd3, program, testing)2007-09-160.1DavidHimmelstrup
cabal-test-bin240.01A program for finding temporary build file during cabal-test. (bsd3, library, program, testing)2015-02-030.1.5junjihashimoto
cabal-uninstall180.01Uninstall cabal packages (bsd3, distribution, program)2014-08-220.1.6JanChristiansen
cabal-upload250.01Command-line tool for uploading packages to Hackage (bsd3, distribution, program)2007-08-240.4BjornBringert
cabal2arch (deprecated)1390.01Create Arch Linux packages from Cabal packages. (bsd3, deprecated, distribution, program)2011-05-091.1DonaldStewart, MagnusTherning, PeterSimons
cabal2doap140.01Cabal to Description-of-a-Project (DOAP) (bsd3, distribution, program)2009-08-250.2GregHeartsfield
cabal2ebuild160.01make gentoo's .ebuild file from .cabal file (bsd3, distribution, library, program)2014-04-010.0.15.9YoshikuniJujo
cabal2ghci80.01A tool to generate .ghci file from .cabal (bsd3, development, program)2013-08-220.0.1.1HiromiIshii
cabal2json60.00Turn a .cabal file into a .json file (library, mit, program, unclassified)2022-05-300.0.0.0Norfair
cabal2nix8240.04Convert Cabal files into Nix build instructions. (bsd3, distribution, library, nix, program)2026-03-232.21.3PeterSimons, sternenseemann, jophish, cdepillabout, maralorn, expipiplus1
cabal2spec870.01Convert Cabal files into rpm spec files (distribution, gpl, library, program)2025-07-232.8.0PeterSimons, YaakovNemoy
cabalQuery60.00A simple tool to query cabal files. (bsd3, development, library, program)2015-05-010.1.0.1RoganCreswick
cabalg370.01alias for cabal install from given git repo (library, mit, program, unclassified)2014-09-190.2.9DmitryMalikov
cabalgraph50.01Generate pretty graphs of module trees from cabal files (bsd3, distribution, program)2009-03-160.1DonaldStewart
cabalish90.01Provides access to the cabal file data for shell scripts (bsd3, program, utilities)2017-04-250.1.0.2RobertFischer
cabalmdvrpm120.01Create mandriva rpm from cabal package (distribution, library, program)2007-03-270.0.1OlivierThauvin
cabalrpmdeps140.02Autogenerate rpm dependencies from cabal files (distribution, library, program)2008-12-040.0.4OlivierThauvin
cabalvchk90.01Verify installed package version against user-specified constraints. (bsd3, distribution, program)2012-01-140.3KevinQuick
cabin110.01Cabal binary sandboxes. (bsd3, distribution, program)2015-04-170.1.0.3nclarke
cachix2500.00Command-line client for Nix binary cache hosting https://cachix.org (apache, library, nix, program)2026-11-051.14.0domenkozar
cadence50.00An ECS-based 2D game framework (bsd3, game, game-engine, library, program)2026-04-050.1.0.0nicholasmasonapps
cairo-appbase150.01A template for building new GUI applications using GTK and Cairo. (bsd3, development, program)2011-11-140.4ConradParker
cake510.01A build-system library and driver (development, library, program)2014-10-131.1.0.1JeanPhilippeBernardy
cake3430.01Third cake the Makefile EDSL (bsd3, development, library, program)2016-10-260.6.5SergeyMironov
cakyrespa390.01run turtle like LOGO with lojban (bsd3, program, teaching)2012-10-290.0.29YoshikuniJujo
cal-layout150.00Calendar Layout Algorithm (bsd3, library, math, program)2019-01-030.1.0.2bor0
cal3d-examples100.01Examples for the Cal3d animation library. (animation, graphics, program)2009-06-270.1GregoryWeber
calc90.01A small compiler for arithmetic expressions. (bsd3, program, unclassified)2007-11-230.1AustinSeipp
calculator642.01A calculator repl, with variables, functions & Mathematica like dynamic plots. (gpl, math, program)2016-10-100.4.1.2sumitsahrawat
caldims80.01Calculation tool and library supporting units (library, math, program)2008-11-050.1.0RickKaudewitz
caledon222.251a logic programming language based on the calculus of constructions (gpl, interpreter, language, program)2016-07-063.2.2.0MatthewMirman
calendar-recycling160.01List years with the same calendars (bsd3, math, program)2018-08-310.0.0.1HenningThielemann
calenderweek60.00Commandline tool to get week of the year (bsd3, commandline, program)2019-11-251.0.0rmeis
caliper42.00A time tracker that is way too precise. (cli, gpl, library, program)2026-05-130.1.0.0leana8959
call-haskell-from-anything100.00Call Haskell functions from other languages via serialization and dynamic libraries (library, mit, network, program)2017-08-041.1.0.0NiklasHambuechen
calligraphy430.00HIE-based Haskell call graph and source code visualizer (bsd3, development, haskell, language, library, program)2026-10-230.1.9tchoutri, jonascarpay
camfort680.01CamFort - Cambridge Fortran infrastructure (analysis, apache, fortran, language, library, program)2022-10-121.2.0DominicOrchard, mdanish, madgen, raehik, nhuber
camh100.01write image files onto 256(or 24bit) color terminals. (bsd3, graphics, program)2017-05-250.0.3HironaoKomatsu
canadian-income-tax740.00Canadian income tax calculation (gpl, library, productivity, program, tax)2026-03-152025.1MarioBlazevic
candid1190.00Candid integration (codec, library, program)2025-04-130.5.0.3JoachimBreitner
canontra80.00Deterministic polyglot program identity & semantic graph engine (apache, code-quality, development, library, program, static-analysis)2026-11-110.3.0.0jasht14
cantor140.01Application for analysis of java source code (application, bsd3, program, source-code-analysis)2014-12-250.4klangner
cao90.01CAO Compiler (compiler, cryptography, language, program)2014-04-070.1.1paufil, tfaoliveira, mbbarbosa
cap40.01Interprets and debug the cap language. (bsd3, language, program)2008-09-281.0.1ThomasDavie
capnp510.00Cap'n Proto for Haskell (capnproto, data, library, mit, network, program, rpc, serialization)2023-06-230.18.0.0isd
capri60.01A simple wrapper over cabal-install to operate in project-private mode. (bsd3, distribution, program)2010-07-100.1DmitryGolubovsky
car-pool300.01Simple web-server for organizing car-pooling for an event (bsd3, program, web)2023-12-220.0.1.2HenningThielemann
carboncopy60.01Drop emails from threads being watched into special CC folder. (bsd3, email, program)2011-03-170.1.2EugenyDzhurinsky
cardano-addresses120.00Utils for constructing a command-line on top of cardano-addresses. (apache, cardano, library, program)2025-12-314.0.2cardano_foundation
cardano-transactions30.00Library utilities for constructing and signing Cardano transactions. (apache, cardano, library, program)2020-04-211.0.0KtorZ
carettah862.01A presentation tool written with Haskell. (gpl, graphics, program)2016-09-300.5.1KiwamuOkabe
carte42.01Carte: A commandline pastebin server. (gpl, network, program)2016-11-100.1.0.0cdetroye
cartel (deprecated in favor of hpack)520.01Specify Cabal files in Haskell (bsd3, deprecated, distribution, library, program)2016-06-300.18.0.2OmariNorman
case-conversion100.01Convert between different cases (bsd3, library, program, text)2017-01-150.2AlanHawkins
case-insensitive-match90.00A simplified, faster way to do case-insensitive matching. (bsd3, library, program, text)2016-08-040.1.1.0mikehat
castle80.01A tool to manage shared cabal-install sandboxes. (apache, development, program)2015-04-200.1.0.1EricRochester
casui20.01Equation Manipulator (math, mit, program)2011-06-040.3EtienneLaurin
catnplus20.01Simple tool to display text files with line numbers and paging (command-line-tool, mit, program)2017-03-010.1.0.0rcook
cattrap190.00Lays out boxes according to the CSS Box Model. (gpl, graphics, library, program)2024-03-190.6.0.0alcinnz
cauldron200.00Dependency injection library (bsd3, dependency-injection, library, program)2025-07-120.9.0.1DanielDiazCarrete
cbf40.00Bindings to read Crystallographic Binary Files (mostly from detectors) (data, gpl, library, program)2026-01-060.1.0.0pimiddy
cblrepo890.01Tool to maintain a database of CABAL packages and their dependencies (distribution, program, utils)2016-12-310.24.0MagnusTherning
cbor-tool230.01A tool for manipulating CBOR. (bsd3, codec, program)2025-03-010.2.3.0AustinSeipp, BenGamari
cdar-mBound210.01Exact real arithmetic using Centred Dyadic Approximations (bsd3, data, library, program)2021-06-040.1.0.4MichalKonecny
cdeps430.03Extract dependencies from C code. (bsd3, c, development, language, library, program)2020-06-240.1.3.1vmchale
cdp100.00A library for the Chrome Devtools Protocol (bsd3, chrome, library, package.category, program)2022-12-240.0.2.0arsalan0c
cedict400.01Convenient Chinese phrase & character lookup. (library, program, text)2008-07-300.2.5JasonDusek
celtchar (deprecated)90.00A tool to build a novel (deprecated, library, mit, program, text)2018-03-030.1.4.0lethom
cerberus (deprecated)40.00Protect and control API access with cerberus (bsd3, deprecated, development, library, program)2015-12-170.1.0.0yogsototh
cfipu80.01cfipu processor for toy brainfuck-like language (bsd3, compilers-interpreters, program)2014-12-021.1.0.4ByronJohnson
cfopu (deprecated in favor of cfipu)80.01cfopu processor (bsd3, compilers-interpreters, deprecated, program)2010-07-121.0.0ByronJohnson
cfv20.00A simple file format for configuration variables (bsd3, development, library, program)2026-11-100.1.0.0heades
cg80.01Parser for categorial grammars. (gpl, language, program)2015-05-290.0.9.0pepijnkokke
cgen140.02generates Haskell bindings and C wrappers for C++ libraries (bsd3, development, library, program)2012-06-160.0.5AnttiSalonen
cgrep4170.01Command line tool (gpl, program, utils)2026-05-129.2.3awgn, NicolaBonelli
chainweb-mining-client90.00Mining Client for Kadena Chainweb (bsd3, data, mathematics, program)2022-11-230.5larsk
chakra120.00A REST Web Api server template for building (micro)services. (library, mit, program, web)2021-11-070.1.2cackharot
change-monger50.01Parse VCS changelogs into ChangeLogs (bsd3, development, library, program, text)2008-05-150.0GwernBranwen
changelogged90.00Changelog manager for Git projects. (bsd3, development, library, program)2018-03-060.2.0NickolayKudasov, viviag
charade92.01Rapid prototyping websites with Snap and Heist (bsd3, library, program, web)2014-11-070.1.1.2DougBeardsley
chart-cli100.00Command-line utility to draw charts from input data easily (bsd3, graphics, program)2019-08-250.1.0.0IlyaPortnov
chart-svg-various (deprecated in favor of prettychart, chart-svg)100.00See readme.md (bsd3, deprecated, library, program, project)2020-08-070.0.2tonyday567
charter70.00 (bsd3, library, program, unclassified)2020-11-140.1.1.1ChrisPenner
chatter2322.251A library of simple NLP algorithms. (bsd3, library, natural-language-processing, program)2017-03-290.9.1.0RoganCreswick
chatwork570.00The ChatWork API in Haskell (library, mit, program, web)2018-08-060.1.3.5matsubara0507
cheapskate570.09Experimental markdown processor. (bsd3, library, program, text)2020-01-240.1.1.2JohnMacFarlane
cheapskate-terminal40.00Initial project template from stack (bsd3, library, program, web)2016-01-180.1.0.0yamadapc
check-pvp182.01Check whether module and package imports conform to the PVP (bsd3, distribution, program)2019-05-180.0.3HenningThielemann
checkmate280.00Generate checklists relevant to a given patch (agpl, development, library, program)2018-08-310.4.0hongminhee
chemical-equation110.00Balance chemical equations (bsd3, chemistry, program)2026-05-200.0.2HenningThielemann
chessIO1430.00Basic chess library (bsd3, game, library, program)2024-10-310.9.5.0mlang
chez-grater390.00Parse and scrape recipe blogs (library, mit, program, web)2022-11-290.1.2dfithian
chitauri50.01Helper for the Major System (bsd3, program, web)2016-10-100.1.0.1marcusbuffett
choose-exe60.01Command-line program to choose random element from a stream. (apache, application, library, program)2016-10-160.1.0.0chris_martin
chr-lang130.00AST + surface language around chr (bsd3, development, library, program)2022-09-160.1.1.0AtzeDijkstra
chromatin80.00neovim package manager (library, mit, neovim, program)2018-12-300.1.1.0tek
chronos-bench150.00Benchmarking tool with focus on comparing results. (benchmarking, bsd3, development, library, performance, program, testing)2019-03-100.2.0.2knupfer
chunky (deprecated)50.01Human-readable storage of text/binary objects. (codec, deprecated, lgpl, library, program)2014-12-030.1.0.0PhilippHausmann
cicero-api70.00API bindings to IOHK's Cicero job scheduler (apache, api, library, program)2022-10-120.1.2.0shlevy
cimple802.03Simple C-like programming language (data, gpl, library, program)2026-02-060.0.32iphydf
ciphersaber2230.01Implementation of CipherSaber2 RC4 cryptography. (data, library, mit, program)2015-12-160.1.1.2BartonMassey
circe152.00CRC (codec, library, mit, program)2026-08-161.1.0.0dopamane
circuit-breaker80.00An implementation of the "circuit breaker" pattern to disable repeated calls to a failing system (bsd3, library, program, system)2019-03-240.1.0.0ChrisCoffey
cisco-spark-api250.00DEPRECATED in favor of webex-teams-api (library, mit, program, web)2018-12-240.1.0.4nshimaza
citeproc-hs-pandoc-filter60.01A Pandoc filter for processing bibliographic references with citeproc-hs (gpl, program, text)2015-03-170.1AndreaRossato
cj-token90.00A new Haskeleton package. (library, other, program)2017-05-050.0.1marnold
clac190.01Simple CLI RPN calculator (gpl, math, program)2015-03-180.5.0alexander
clafer1360.03Compiles Clafer models to other formats: Alloy, JavaScript, JSON, HTML, Dot. (library, mit, model, program)2017-03-130.4.5mantkiew
claferIG710.01claferIG is an interactive tool that generates instances of Clafer models. (library, mit, model, program)2017-03-130.4.5mantkiew
claims-x12-dsl50.00Type-safe DSL for healthcare claims validation and X12 processing (bsd3, healthcare, library, program)2026-01-140.1.0.0shibumi
clanki540.01Command-line spaced-repetition software (education, mit, program)2016-10-051.2.7marcusbuffett
clash-ghc6012.255Clash: a functional hardware description language - GHC frontend (bsd2, hardware, library, program)2026-10-151.10.3ChristiaanBaaij, QBayLogic
clash-lib3980.011Clash: a functional hardware description language - As a library (bsd2, hardware, library, program)2026-10-151.10.3ChristiaanBaaij, QBayLogic
clashilator190.00Automated Clash to Verilator bridge (development, hardware, library, mit, program)2024-04-200.1.4GergoErdi
classify-frog130.01Classify sounds produced by Xenopus laevis (bioinformatics, bsd3, program)2019-08-130.2.4.3HenningThielemann
classy-miso90.00Typeclass based support for Miso, the Tasty Web Framework for Haskell. (bsd3, library, program, web)2018-03-260.0.0.2RobertFischer
claude322.01Servant bindings to Anthropic's Claude API (ai, api, bsd3, library, llm, program)2026-08-011.5.0GabrielGonzalez, asselinpaul
claude-gate70.00Hook gate that reviews and records edits from nested Claude Code sessions (development, library, mit, program)2026-07-201.0.0Jappie
clckwrks-cli810.01a command-line interface for adminstrating some aspects of clckwrks (bsd3, clckwrks, library, program)2022-04-170.3.0.5JeremyShaw
clckwrks-dot-com450.01clckwrks.com (bsd3, clckwrks, program)2015-05-150.3.11JeremyShaw
clean-home170.01Keep your home dir clean by finding old conf files (bsd3, program, utils)2017-03-190.0.5IvanPerez, keera_studios_ci
cless130.01Colorized LESS (mit, program, text)2015-03-190.3.0.0HideyukiTanaka
clevercss280.03A CSS preprocessor (bsd3, library, program, text)2011-01-060.2.4GeorgBrandl
cli480.01CLI (bsd3, cli, library, program)2019-01-040.2.0VincentHanquez, nicolasdp
click-clack130.01Toy game (tetris on billiard board). Hipmunk in action. (little-game, program)2012-06-191.0.1AntonKholomiov
clickhouse-migrate-embed90.00Compile-time embedding for ClickHouse migration definitions (bsd3, database, library, program)2026-11-090.2.0.0shinzui
clientsession2850.034Securely store session data in a client-side cookie. (library, mit, program, web)2024-07-140.9.3.0FelipeLessa, MichaelSnoyman
clifford270.01A Clifford algebra library (bsd3, library, math, numerical, program)2014-03-290.1.0.14spacekitteh
clifm170.01Command Line Interface File Manager (bsd3, program, system)2018-06-210.5.2.1pasqu4le
climb410.00Building blocks for a GHCi-like REPL with colon-commands (bsd3, library, program, user-interfaces)2026-06-090.8.0ejconlon
clippings70.01A parser/generator for Kindle-format clipping files (`My Clippings.txt`), (library, mit, program, text)2015-08-270.2.0vi
clit950.01Post tweets from stdin (bsd3, library, program, web)2017-03-210.4.0.6
cloben200.01Clone and benchmark Haskell cabal projects (benchmarking, bsd3, program)2018-11-020.1.1.0sgraf812
clod860.00Project file manager for Claude AI integrations (development, library, mit, program)2025-04-230.2.3fuzz
clone-all50.01Clone all github repositories from a given user (development, mit, program)2014-06-270.1.0.0NoonSilk
cloudy90.00CLI tool to easily spin up and control compute instances in various cloud environments (bsd3, library, productivity, program)2024-09-230.1.0.1cdepillabout
cloudyfs80.01A cloud in the file system. (program, system)2013-03-310.0.2BrendanHickey
clr-win-linker30.01A GHC linker wrapper tool to workaround a GHC >8.2 bug (.net, bsd3, clr, ffi, language, program)2017-04-250.1.0.0PepeIborra, TimMatthews
cltw40.01Command line Twitter utility (bsd3, console, program, utils)2010-04-191.1.4DinoMorelli
clua160.01C to Lua data wrapper generator (bsd3, language, program)2012-04-040.3TomSchouten
clustertools270.01Tools for manipulating sequence clusters (bioinformatics, program)2011-06-060.1.5GwernBranwen, KetilMalde
cmathml360.01Data model, parser, serialiser and transformations for Content MathML 3 (bsd3, library, program, xml)2012-04-010.1AndrewMiller
cmdargs-browser200.01Helper to enter cmdargs command lines using a web browser (bsd3, console, program)2020-07-040.1.4NeilMitchell
cmt190.00Write consistent git commit messages (bsd3, command-line-tools, library, program)2020-01-260.7.1.0smallhadroncollider
cmu470.01Unification in a Commutative Monoid (algebra, library, program)2019-10-171.12JohnRamsdell
cmv281.50Detailed visualization of CMs, HMMs and their comparisions (bioinformatics, gpl, library, program)2018-01-281.0.8FlorianEggenhofer
cnc-spec-compiler40.01Compiler/Translator for CnC Specification Files. (bsd3, compilers-interpreters, parallelism, program)2011-08-120.2.0.1RyanNewton
co-log392.511Composable Contravariant Comonadic Logging Library (comonad, contravariant, library, logging, mpl, program)2025-04-060.7.0.0vrom911, alaendle
co-log-polysemy422.58Composable Contravariant Comonadic Logging Library (comonad, contravariant, effects, library, logging, mpl, program)2025-01-050.0.1.6vrom911, alaendle
co-log-polysemy-formatting80.01A Polysemy logging effect for high quality (unstructured) logs. (bsd3, library, logging, program)2020-12-100.1.1.0AlexChapman
co-log-simple200.01Simple enhancements for logging with co-log (library, logging, program)2025-09-111.2.1DinoMorelli
codec-libevent (deprecated)90.02Cross-platform structure serialisation (bsd3, data, deprecated, library, parsing, program)2008-01-270.1.2AdamLangley
codecov-haskell211.251Codecov.io support for Haskell. (bsd3, control, library, program)2017-06-170.5.0killy971
codeforces-cli52.00Command line interface to interact with Codeforces. (cli, library, mit, program)2021-06-170.1.0farbodsz
codemonitor100.01Tool that automatically runs arbitrary commands when files change on disk. (bsd3, program, tool)2012-06-080.2RickardLindberg
codex1200.01A ctags file generator for cabal project dependencies. (apache, development, library, program)2020-03-140.6.0.0bitemyapp, aloiscochard, parsonsmatt
coformat80.00Generate clang-format config based on some existing code base (bsd3, language, library, program)2019-12-300.3.0.00xd34df00d
cognimeta-utils130.02Utilities for Cognimeta products (such as perdure). API may change often. (library, program, unclassified)2012-09-260.1.2PatrickPremont
coin100.01Simple account manager (application, program)2017-06-131.2.1piotrborek
coinbase-exchange240.00Connector library for the coinbase exchange. (library, mit, program, web)2017-09-230.4.0.0andrewrademacher
coinbase-pro412.00Client for Coinbase Pro (finance, library, mit, program, web)2022-12-230.9.3.2mdunnio
colada450.01Colada implements incremental word class class induction using online LDA (bsd3, library, natural-language-processing, program)2015-03-020.8.4.0GrzegorzChrupala
cold-widow41.50File transfer via QR Codes. (bsd3, library, program, utility)2016-10-310.1.2mihaigiurgeanu
collada-output170.02Generate animated 3d objects in COLLADA (bsd3, graphics, library, program)2011-07-250.6AndyGill, TillmannVogt
collapse-duplication40.00Collapse the duplication output into clones and return their frequencies. (bioinformatics, gpl, library, program)2018-08-280.4.0.1GregorySchwartz
collapse-util80.01utility for collapsing adjacent writes (bsd3, concurrency, program)2014-06-270.1.0.1MarkWotton
color-counter110.01Count colors in images (graphics, library, mit, program)2016-04-160.1.2.2BrianBush
colorize-haskell90.01Highligt Haskell source (bsd3, development, library, program)2010-07-241.0.1IavorDiatchki
comark40.00Commonmark processing in pure haskell. (bsd3, library, program, text)2017-09-210.1.0zudov
combinator-interactive110.01SKI Combinator interpreter (bsd3, language, library, program)2013-09-070.1.2FumiakiKinoshita
commander80.00pattern matching against string based commands (bsd3, library, program, text)2016-03-110.1.0.0jsdw
commander-cli832.00A command line argument/option parser library (cli, library, mit, options, parsing, program, system)2023-01-170.11.0.0sgschlesinger
commonmark-cli110.00Command-line commonmark converter and highlighter. (bsd3, program, text)2026-05-310.2.1.1JohnMacFarlane
compaREST40.00Compatibility checker for OpenAPI (library, mit, program, web)2022-03-040.1.0.1mniip, typeable, iko
concoct70.00A declarative UI framework (bsd3, library, program, user-interfaces)2026-01-310.1.0matthunz
concraft-hr180.01Part-of-speech tagger for Croatian (bsd3, library, natural-language-processing, program)2014-12-190.1.0.2vjeranc
concraft-pl700.01Morphological tagger for Polish (bsd3, library, natural-language-processing, program)2018-10-302.4.0JakubWaszczuk
concrete-haskell500.00Library for the Concrete data format. (data, library, program)2017-12-100.1.0.16TomLippincott
concrete-relaxng-parser70.01A parser driven by a standard RELAX NG schema with concrete syntax extensions. (parsing, program, xml)2012-08-230.1.1MarioBlazevic
concurrency-benchmarks100.01Benchmarks to compare concurrency APIs (benchmark, mit, program)2018-09-120.1.1harendra
concurrent-dns-cache310.01Concurrent DNS cache (bsd3, library, network, program)2026-10-270.1.4KazuYamamoto
conditional-restriction-parser50.00Parser and interpreter of OpenStreetMap conditional restriction values (agpl, library, parser, program)2022-09-080.1.0.5lbuchli
condor (deprecated)30.01Information retrieval library (bsd3, deprecated, library, program, search, text)2014-01-200.3klangner
conduit-find210.00A file-finding conduit that allows user control over traversals. (library, mit, program, system)2025-06-020.1.0.4ErikDeCastroLopo
conduit-tokenize-attoparsec (deprecated)80.00Conduits for tokenizing streams. (bsd3, conduit, data, deprecated, library, program)2016-01-310.1.0.0newhoggy, haskellworks
confcrypt310.00 (library, mit, program, unclassified)2019-05-260.2.3.3ChrisCoffey
confetti90.00A simple config file swapping tool (command-line-tools, library, mit, program)2018-12-121.0.0aviaviavi
conffmt40.01A .conf file formatter (data, mit, program)2016-08-310.2.3.0yamadapc
config-select70.01A small program for swapping out dot files. (gpl, program, system)2013-02-070.0.1TimothyHobbs
configuration-tools1192.05Tools for specifying and parsing configurations (configuration, console, library, mit, program)2025-03-050.7.1larsk, fosskers, edmundnoble
confsolve460.01A command line tool for resolving conflicts of file synchronizers. (bsd3, program, utils)2017-07-310.5.6DanielTrstenjak
conjure102.01A BitTorrent client (bsd3, library, network, program)2008-03-090.1GwernBranwen
conlogger40.01A logger for a concurrent program. (concurrency, library, mit, program)2015-01-220.1.0.1tattsun
connections470.02Orders, Galois connections, and lattices. (bsd3, library, math, numerical, program)2021-09-160.3.2cmk
containers-benchmark240.01Extensive benchmark suite for containers package. (benchmarking, bsd3, program)2011-11-281.1.0.0MilanStraka
context-free-art340.00Generate art from context-free grammars (bsd3, graphics, library, program)2019-10-290.3.0.1414owen
convert-annotation170.00Convert the annotation of a gene to another in a delimited file using a variety of different databases. (bioinformatics, gpl, library, program)2018-02-070.5.1.0GregorySchwartz
convex-schema-parser340.00A type-safe client generator for Convex for both Rust and Python. (code-generation, development, library, mit, program, web)2025-07-250.1.8.0lambdaxdotone
cooklang-hs82.00Parser for the Cook markup language (library, mit, parsing, program)2023-12-270.1.1isaacvando
copilot-verifier670.00System for verifying the correctness of generated Copilot programs (bsd3, language, library, program)2026-11-084.8.2IvanPerez, ryanglscott, galoisinc
coquina150.00Yet another shell monad. (bsd3, library, program, shell)2025-12-260.2.0.1abrar
core-compiler100.00compile your own mini functional language with Core (compiler, language, library, mit, program)2017-08-060.1.0.2aneksteind
core-haskell310.01A subset of Haskell using in UCC for teaching purpose (bsd3, compilers-interpreters, language, program)2014-03-130.6.4happlebao
core-of-name40.00Print the Core representation of a binding with a GHC plugin. (bsd3, development, library, program)2026-03-160.1.0.0ocramz
corebot-bliki90.01A bliki written using yesod. Uses pandoc to process files stored in git. (bsd3, library, program, yesod)2012-02-050.2.2.0CoreyOConnor
corecursive-main50.00Write your main like it can call itself back. (bsd3, control, library, program)2018-08-190.1.0.0LucasDiCioccio
cornelis80.00 (bsd3, library, program, unclassified)2024-05-170.2.0.1isovector
cot60.00Commitments of Traders (data, library, mit, program)2026-10-220.1.0.0dopamane
couch-hs350.01A CouchDB view server for Haskell. (database, library, program, public-domain)2012-01-230.1.6PeterSagerson
countdown-numbers-game50.00Solve problems from the number round of the Countdown game show (bsd3, math, program)2025-03-250.0.0.1HenningThielemann
courier492.02A message-passing library for simplifying network applications (distributed-computing, library, message-oriented, mit, network, program)2017-05-050.1.1.5PhilHargett
court70.01Simple and flexible CI system (bsd3, development, program)2015-11-270.1.0.1thoferon
cpkg980.00Build tool for C (bsd3, c, dhall, library, package-management, packaging, program)2023-11-060.2.5.8vmchale
cpphs2080.038A liberalised re-implementation of cpp, the C pre-processor. (development, library, program)2025-09-141.20.10AndreasAbel, MalcolmWallace, phadej
cpsa5402.251Symbolic cryptographic protocol analyzer (bsd3, cryptography, program)2026-05-244.4.9JohnRamsdell, mliskov, joshuaguttman, pauldavidrowe
cpu-features40.00A library to detect CPU features (bsd3, library, program, system)2025-04-260.1.0.0aratamizuki
cpuperf130.01Modify the cpu frequency on OpenBSD systems (bsd3, program, system)2008-06-160.1.1DonaldStewart
cqrs-example280.01Example for cqrs package (mit, program, web)2015-09-160.10.0BardurArantsson
cr70.01Code review tool (control, gpl, network, program, system)2012-12-031.2AlexandruScvortov
crackNum1492.02Crack various integer and floating-point data formats (bsd3, program, tools)2026-11-034.8LeventErkok
craze250.00HTTP Racing Library (library, mit, program, web)2016-08-260.1.3.0etcinit
credential-store100.00Library to access secure credential storage providers (apache, desktop, library, program)2018-01-010.1.2blaze
credentials-cli200.01Secure Credentials Administration (aws, console, network, program, security)2017-04-280.0.2BrendanHay
creditmonad50.00Reasoning about amortized time complexity (bsd3, development, library, program)2025-08-191.1.0anfelor
crem72.00Compositional representable executable machines (control, library, machines, mit, program, state-machines)2026-04-170.1.1.0marcosh
criterion5232.7528Robust, reliable performance measurement and analysis (benchmarking, bsd3, development, library, performance, program, testing)2026-04-021.6.5.0BryanOSullivan, RyanNewton, ryanglscott
criterion-cmp50.00A simple tool for comparing in Criterion benchmark results (bsd3, development, program)2021-02-140.1.0.0phadej
criterion-compare52.00A simple tool for visualising differences in Criterion benchmark results (bsd3, development, program)2019-07-290.1.0.0BenGamari, AndreasK
criterion-to-html90.01Convert criterion output to HTML reports (bsd3, development, program)2012-06-270.0.0.3JasperVanDerJeugt
crocodile110.01An offline renderer supporting ray tracing and photon mapping (gpl, graphics, program)2011-09-290.1.2TomHammersley
croque-mort60.00Dead simple broken links checker on local HTML folders (data, program)2025-08-310.1.0.0gdifolco
crucible-debug50.02An interactive debugger for Crucible programs (bsd3, language, library, program)2025-11-100.1.2.0ryanglscott, galoisinc, mccleeary, sauclovian_g, aschwerdfeger_galois
crunghc80.01A runghc replacement with transparent caching (development, program, public-domain)2013-12-110.1.1.1AkioTakano
crux-llvm610.01A verification tool for C programs. (bsd3, language, library, program)2026-09-110.13ryanglscott, galoisinc, mccleeary, sauclovian_g, aschwerdfeger_galois
crypto-enigma732.01An Enigma machine simulator with display. (bsd3, cryptography, education, library, program)2019-10-090.1.1.6Orome
crypto-multihash230.00Multihash library on top of cryptonite crypto library (bsd3, cryptography, library, program)2016-08-270.4.2.0mseri
cryptol730.01Cryptol: The Language of Cryptography (bsd3, language, library, program)2026-09-093.6.0IavorDiatchki, ryanglscott, galoisinc, mccleeary, sauclovian_g, aschwerdfeger_galois
crypton-x509-util210.00Utility for X509 certificate and chain (bsd3, data, program)2026-10-081.9.1KazuYamamoto
csg310.00Analytical CSG (Constructive Solid Geometry) library (bsd3, graphics, library, program)2019-01-180.1.0.6DmitryDzhus
cspmchecker360.01A command line type checker for CSPM files. (bsd3, concurrency, program)2013-10-111.0.0ThomasGibsonRobinson
css-parser30.01pure CSS parser/printer (bsd3, library, program, web)2026-05-150.0.1DaniilIaitskov
csv-nptools210.01A collection of CSV tools (development, program, text, utils)2013-10-290.4.1NicolasPouillard
csv-to-qif120.01A small program that will read csv files and create qif files (bsd3, console, program, text)2018-02-210.3.3palo
ctpl80.02A programming language for text modification. (gpl, library, program, text)2016-04-050.1.0.4implementation
cubical80.01Implementation of Univalence in Cubical Sets (dependent-types, mit, program)2014-04-270.2.0AndersMortberg
cuboid210.013D Yampa/GLUT Puzzle Game (game, mit, program)2015-05-220.14.2PedroMartins
cuckoo-filter130.00Pure and impure Cuckoo Filter (data, library, mit, program)2018-12-120.2.0.2ChrisCoffey
cuda2380.016FFI binding to the CUDA driver interface for programming NVIDIA GPUs (bsd3, foreign, library, program)2026-03-300.13.0.0TrevorMcDonell, tomsmeding
cuddle420.00CDDL Generator and test utilities (apache, codec, library, program)2026-07-151.8.1.0lehins, j_jaager, IOHK
curl-runnings560.00A framework for declaratively writing curl based API tests (library, mit, program, testing)2022-03-070.17.0aviaviavi
curry-frontend772.02Compile the functional logic language Curry to several intermediate formats (bsd3, language, library, program)2021-02-112.0.0BerndBrassel, BjoernPeemoeller, HolgerSiegel, CurryLanguage
currycarbon470.00A package for simple, fast radiocarbon calibration (archaeoinformatics, library, mit, program)2026-10-140.6.0.0nevrome
curryer-rpc572.01Fast, Haskell RPC (library, program, rpc)2026-07-250.5.2agentm
cursedcsv172.01Terminal tool for viewing tabular data (application, bsd3, program)2021-08-120.1.4GershomBazerman
cut-the-crap730.00Cuts out uninteresting parts of videos by detecting silences. (library, mit, program, video)2020-11-052.3.1Jappie
cutesetup10.00Cute TUI for scaffolding nix devshells (apache, development, program, user-interfaces, utility)2026-07-270.1.0.0petalmaya
cutter110.01Cut files according to a position list (bsd3, console, program)2017-03-260.0HenningThielemann
cv-combinators350.01Functional Combinators for Computer Vision (ai, gpl, graphics, library, program)2015-08-120.2.0.2NoamLewis
cybus100.00multi-dimensional arrays (bsd3, containers, data, library, program)2022-04-130.3.0.0gbwey
d-bus300.02Permissively licensed D-Bus client library (bsd3, desktop, library, network, program)2017-12-130.1.8PhilippBalzarek, frasertweedale
d3d11binding292.00A raw binding for the directX 11 (graphics, library, mit, program)2016-05-110.0.0.7jwvg0425
daemons210.05Daemons in Haskell made fun and easy (control, gpl, library, network, program, system)2023-09-290.4.0AlexandruScvortov
daino70.00daino is a static site generator (SSG) using shake and pandoc (development-web, library, program)2023-04-060.1.5.2andrewufrank
danecheck120.00DANE SMTP validator (bsd3, network, program)2026-06-111.0.0.2ietfdane
danibot70.00Basic Slack bot framework. (library, mit, network, program)2016-03-190.2.0.0DanielDiazCarrete
dao40.01Dao is meta programming language with its own built-in interpreted language, designed with artificial intelligence applications in mind. (gpl, library, program, unclassified)2014-11-210.1.0.1RaminHonary
dapi30.01Prints a series of dates (bsd3, console, program)2013-04-020.2.0.0OmariNorman
darcs-benchmark300.01Comparative benchmark suite for darcs. (bsd3, program, testing)2010-08-080.1.9EricKow, PetrRockai
darcs-buildpackage140.01Tools to help manage Debian packages with Darcs (program, system)2008-01-160.5.12JohnGoerzen
darcs-cabalized (deprecated in favor of darcs)260.01David's Advanced Version Control System (deprecated, development, program)2008-07-022.0.2.2GwernBranwen
darcs-fastconvert160.01Import/export git fast-import streams to/from darcs. (bsd3, development, program)2011-02-130.2.1PetrRockai
darcs-graph230.01Generate graphs of darcs repository activity (bsd3, distribution, program)2008-11-291.0DonaldStewart, IsaacJones
darcs-monitor220.01Darcs repository monitor (sends email) (distribution, program)2011-06-130.4.2AnttiJuhaniKaijanaho, MarcoSilva
darcs2dot (deprecated in favor of darcs)100.01Outputs dependencies of darcs patches in dot format. (bsd3, deprecated, development, program)2013-04-070.1.0.1SoenkeHahn
darcsden170.01Darcs repository UI and hosting/collaboration app (hub.darcs.net branch). (development, distribution, program, web)2015-04-221.1.1AlexSuraci, SimonMichael
darcswatch330.01Track application of Darcs patches (distribution, program)2011-06-080.4.4JoachimBreitner
darkplaces-demo180.01Utility and parser for DarkPlaces demo files (game, gpl, library, program)2015-02-120.1slava
darkplaces-rcon-util140.00Darplaces rcon utility (game, gpl, library, program)2015-05-240.1.1slava
dash-haskell420.01Convert package Haddock to Dash docsets (IDE docs) (documentation, lgpl, program)2015-07-181.1.0.2jfeltz, johnfeltz
data-embed90.01Embed files and other binary blobs inside executables without Template Haskell. (data, library, mit, program)2016-01-010.1.0.0AntonEkblad
data-files-gen70.00Generate data-files Cabal file field from existing files (bsd3, library, program, tools)2016-08-020.0.0.1JeanPhilippeMoresmau
data-json-token (deprecated)50.00Json Token datatype (bsd3, data, deprecated, json, library, program)2016-02-020.1.0.0newhoggy, haskellworks
data-msgpack (deprecated in favor of msgpack-binary)452.011A Haskell implementation of MessagePack (bsd3, data, deprecated, library, program)2020-02-290.0.13iphydf
data-pdf-fieldreader80.00Read PDF form fields (data, library, mit, program)2021-08-160.1.1.0ScottSedgwick
data-reify-gadt80.00Data.Reify for GADTs (bsd3, data, library, program)2025-04-130.1.0.1ArthiChaud
data-stm3240.00ARM SVD and CubeMX XML parser and pretty printer for STM32 family (bsd3, library, parsing, program)2018-02-210.1.0.0srk
data-structure-inferrer90.01Program that infers the fastest data structure available for your program (development, mit, program)2011-12-271.0AleksanderBalicki
data-svd120.01SVD (System view description) file handling (bsd3, embedded, library, program)2026-07-280.1.3.0srk
datadog-tracing432.00Datadog tracing client and mock agent. (bsd3, library, logging, program)2019-05-081.5.1fommil
datafix110.01Fixing data-flow problems (compiler, library, program)2020-03-280.0.1.0sgraf812
dataflow630.01Generate Graphviz documents from a Haskell representation. (bsd3, code-generation, compiler, graphs, library, program)2015-08-260.7.3.0owickstrom
dataframe4320.06A fast, safe, and intuitive DataFrame library. (data, library, mit, program)2026-11-113.8.0.0mchav
dataframe-parquet580.08Parquet reader and writer for the dataframe ecosystem. (data, library, mit, program)2026-11-111.6.1.0mchav
datalog110.01An implementation of datalog in Haskell (bsd3, database, library, program)2014-09-180.2.0.2TristanRavitch
datapacker170.01Tool to help pack files into the minimum number of CDs/DVDs/etc (program, system)2008-09-251.0.1JohnGoerzen
datastar-hs580.03Haskell bindings for Datastar (hypermedia, library, mit, program, web)2026-11-101.1.2.0CarloHamalainen
dawdle160.00Generates DDL suggestions based on a CSV file (database, library, mit, program)2015-12-050.1.0.2arnon
dbjava40.01Decompiler Bytecode Java (bsd3, jvm, library, program)2011-04-101.7CarlosGomez
dbm220.01A *simple* database migration tool. (bsd3, database, program)2016-09-010.3RickyElrod
dbmigrations (deprecated)470.02An implementation of relational database "migrations" (bsd3, database, deprecated, library, program)2022-05-042.1.0JonathanDaugherty, haskell_github_trust
dbmigrations-mysql40.00The dbmigrations tool built for MySQL databases (bsd3, database, library, program)2016-10-222.0.0JonathanDaugherty, haskell_github_trust
dbmigrations-postgresql70.01The dbmigrations tool built for PostgreSQL databases (bsd3, database, program)2016-10-222.0.0JonathanDaugherty, haskell_github_trust
dbmigrations-sqlite70.01The dbmigrations tool built for SQLite databases (bsd3, database, program)2016-10-222.0.0JonathanDaugherty, haskell_github_trust
dbmonitor90.00Data consistency alerting for PostgreSQL (bsd3, database, library, monitoring, program)2022-07-190.1.0viviag
dbus-app-launcher70.00Simple app launcher for D-Bus (mit, program, system)2024-12-140.1.1.0DvdGiessen
dbus-hslogger180.01Expose a dbus server to control hslogger (bsd3, library, program, system)2026-05-130.1.1.1eyevanmalicesun
dbus-th-introspection110.01Generate bindings for DBus calls by using DBus introspection and dbus-th (bsd3, development, library, program)2018-03-310.1.2.0IlyaPortnov
dcpu16140.00DCPU-16 Emulator & Assembler (bsd3, compilers-interpreters, library, program)2017-01-120.1.0.2anatolat
ddc-tools (deprecated)200.01Disciplined Disciple Compiler command line tools. (compilers-interpreters, deprecated, mit, program)2016-09-060.4.3.1BenLippmeier
ddc-war (deprecated)130.01Disciplined Disciple Compiler test driver and buildbot. (compilers-interpreters, deprecated, mit, program)2014-10-310.4.1.3BenLippmeier
ddci-core (deprecated)160.01Disciple Core language interactive interpreter. (compilers-interpreters, deprecated, mit, program)2012-10-240.2.1.2BenLippmeier
dde182.01Delay differential equations (bsd3, library, math, program)2018-07-080.3.0penkovsky
dead-code-detection780.01detect dead code in haskell projects (bsd3, development, program)2016-07-100.8.1SoenkeHahn
debian1670.03Modules for working with the Debian package system (bsd3, debian, library, program)2026-02-074.1.2ClintAdams, DavidFox, JeremyShaw, MarcoSilva
debian-binary (deprecated)50.01Utilities to work with debian binary packages (deprecated, library, program, system)2008-09-110.0.1MarcoSilva
debian-build800.01Debian package build sequence tools (bsd3, debian, library, program)2021-09-040.10.2.1KeiHibino
debug232.51Simple trace-based debugger (bsd3, debugging, development, library, program)2018-03-190.1.1NeilMitchell
debug-me280.01secure remote debugging (agpl, program, utility)2022-12-311.20221231JoeyHess
debug-pp100.01A preprocessor for the debug package (bsd3, debugging, program)2018-01-200.1.1PepeIborra
debug-tracy160.00More useful trace functions for investigating bugs (bsd3, development, library, program)2019-02-040.1.0.3fresheyeball
decode-utf880.01Decode a UTF-8 byte stream on standard input (mit, program, text)2015-05-131.2JoeHurd
dedukti310.01A type-checker for the λΠ-modulo calculus. (compilers-interpreters, library, program, theorem-provers)2011-04-081.1.4MathieuBoespflug
deepl60.00Call DeepL to translate you files (bsd3, language, library, program, web)2021-04-160.1.0.1PaoloVeronelli
deeplearning-hs170.01Deep Learning in Haskell (library, math, mit, program)2014-05-050.1.0.2ajtulloch
deka-tests40.01Tests for deka, decimal floating point arithmetic (bsd3, library, math, program)2014-07-160.6.0.2OmariNorman
delta250.00A library for detecting file changes (data, lgpl, library, program)2015-07-230.2.1.2muzzle
delta-h260.01Online entropy-based model of lexical category acquisition. (bsd3, library, natural-language-processing, program)2012-02-290.0.3GrzegorzChrupala
demangler70.00Demangler for C++ mangled names. (bsd3, development, library, program)2024-04-231.3.2.0KevinQuick
denominate190.01Functions supporting bulk file and directory name normalization. (bsd3, library, program, system)2008-12-070.5.0CalvinSmith
depends (deprecated in favor of cabal-install)90.01A simple configuration management tool for Haskell (deprecated, distribution, mit, program)2013-09-280.0.1SimonHengel
dephd420.01Analyze quality of nucleotide sequences. (bioinformatics, program)2011-03-210.1.6GwernBranwen, KetilMalde
derive1752.2561A program and library to derive instances for data types (bsd3, development, library, program)2019-01-222.6.5AustinSeipp, NeilMitchell, StefanORear, VladimirShabanov, ip1981
derive-gadt100.01Instance deriving for (a subset of) GADTs. (bsd3, development, language, library, program)2009-07-250.1.1MattMorrow
derive-monoid60.01derive Semigroup/Monoid/IsList (derive-monoid, derive-monoid-, library, mit, program)2017-05-010.0.1sboo
derulo660.00Parse and render JSON simply. (json, library, mit, program)2022-08-282.0.0.3fozworth
descript-lang80.00Library, interpreter, and CLI for Descript programming language. (gpl, language, library, program)2018-05-200.2.0.0jakobeha
desert220.00a simple build tool for OCaml projects (bsd3, language, library, program)2016-08-240.1.0.6zjhsdtc
detrospector110.01Markov chain text generator (bsd3, natural-language-processing, program, text)2013-04-080.3KeeganMcAllister
deunicode50.01Get rid of unicode (utf-8) symbols in Haskell sources (codec, mit, program)2010-10-150.1BenFranksen
devforms450.00A builder DSL for HTML survey forms with built-in server and storage (bsd3, library, program, web)2026-10-310.3.0.1LassiHaasio
devil70.01A small tool to make it easier to update program managed by Angel. (mit, program, system)2014-06-290.1.1.0luanzhu
dfinity-radix-tree762.00A generic data integrity layer. (blockchain, bsd3, database, dfinity, library, program)2019-03-140.6.3EnzoHaussecker, taktoa
dfsbuild110.01Build Debian From Scratch CD/DVD images (program, system)2008-01-161.0.2JohnGoerzen
dhall3792.7564A configuration language guaranteed to terminate (bsd3, compiler, library, program)2025-09-061.42.3GabrielGonzalez, sjakobi, winitzki
dhall-bash1140.00Compile Dhall to Bash (bsd3, compiler, library, program)2023-04-191.0.41GabrielGonzalez, sjakobi
dhall-check240.01Check all dhall files in a project (bsd3, development, program)2017-05-071.1.0.0anfelor
dhall-csv120.00Convert bidirectionally between Dhall and CSV files. (bsd3, compiler, library, program)2023-04-191.0.4GabrielGonzalez
dhall-docs450.00Generate HTML docs from a dhall package (bsd3, compiler, library, program)2025-01-191.0.12GabrielGonzalez, sjakobi
dhall-fly180.00Translate concourse config from Dhall to YAML (bsd3, concourse, dhall, json, library, program, yaml)2020-03-020.3.0axeman
dhall-json2582.08Convert between Dhall and JSON or YAML (bsd3, compiler, library, program)2023-04-191.7.12GabrielGonzalez, sjakobi
dhall-lsp-server1090.00Language Server Protocol (LSP) server for Dhall (library, mit, program, unclassified)2025-01-191.1.4GabrielGonzalez, sjakobi
dhall-nixpkgs320.00Convert Dhall projects to Nix packages (bsd3, nix, program)2023-04-191.0.10GabrielGonzalez, sjakobi
dhall-openapi340.00Convert an OpenAPI specification to a Dhall package (bsd3, compiler, library, program)2025-01-191.0.7GabrielGonzalez
dhall-secret190.00Encrypt Decrypt Dhall expressions (bsd3, data, library, program)2025-01-060.6.63oyanglulu
dhall-text (deprecated in favor of dhall)1490.01Template text using Dhall (bsd3, compiler, deprecated, program)2019-06-071.0.18GabrielGonzalez
dhall-text-shell120.00Render dhall text with shell commands as function arguments (compiler, library, mit, program)2026-10-050.2.1.0jle
dhall-to-cabal610.00Compile Dhall expressions to Cabal files (distribution, library, mit, program)2019-07-051.3.4.0OliverCharles
dhall-toml190.00Convert between Dhall and TOML (bsd3, compiler, library, program)2025-01-191.0.4GabrielGonzalez
dhall-yaml830.00Convert between Dhall and YAML (compiler, gpl, library, program)2023-04-191.2.12GabrielGonzalez, HerbertValerioRiedel, sjakobi
dhrun90.00Dhall/YAML configurable concurrent integration test executor. (library, mit, program, tools)2019-07-251.0.1fre
dhscanner-kbapi930.00query language api for dhscanner knowledge base (api, gpl, library, program)2026-10-271.5.0OrenHackage
diagrams-braille170.00Braille diagrams with plain text (bsd3, graphics, library, program)2025-04-070.1.2BrentYorgey, mlang
diagrams-haddock1690.01Preprocessor for embedding diagrams in Haddock documentation (bsd3, graphics, library, program)2023-07-110.4.1.2BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-pandoc200.00A Pandoc filter to express diagrams inline using the Haskell EDSL _Diagrams_ (bsd3, library, program, text)2025-06-300.4.1BrentYorgey, bergey
dialogue42.250I/O in Haskell Report 1.2 (bsd3, io, library, program)2022-02-130.1.0AliasQli
dib250.01A simple, forward build system. (development, library, mit, program)2018-01-100.7.2blajzer
dice200.03Simplistic D&D style dice-rolling system. (game, library, program, public-domain)2022-10-280.1.1BertramFelgenhauer, JamesCook, ncfavier
dice2tex80.01Convert a Diceware wordlist into a printer-ready LaTeX file. (gpl, program, text)2017-01-140.1.0.1mgmillani
dictionaries260.00Tools to handle StarDict dictionaries. (bsd3, library, program, text)2018-01-130.2.0.4zohl
dictparser320.01Parsec parsers for the DICT format produced by dictfmt -t (bsd3, language, library, program)2014-01-100.3.0.0MarkWotton
diffcabal40.01Diff two .cabal files syntactically (bsd3, distribution, program)2010-07-150.1.1DonaldStewart
diffdump40.01Tools for diffing stdout (bsd3, program, system)2013-01-050.7.5GregFitzgerald
differential200.01Finds out whether an entity comes from different distributions (statuses). (bioinformatics, gpl, library, program)2021-02-050.2.0.1GregorySchwartz
difftodo80.00Generate todo lists from source code (development, library, program)2016-09-100.2.0jml
dihaa80.01ASCII based Diagram drawing in Haskell (Idea based on ditaa) (gpl, graphics, program)2017-05-060.2.1.2wilde
dingo-example40.01Dingo Example (mit, program, web)2012-02-060.2.0BardurArantsson
diohsc692.00Gemini client (browser, gpl, program)2026-09-060.1.17mbays
diplomacy-server60.01Play Diplomacy over HTTP (bsd3, program, unclassified)2015-08-200.1.0.0alexvieth
directory-contents282.00Recursively build, navigate, and operate on a tree of directory contents. (bsd3, library, program, system)2025-12-260.2.0.3abrar
direm50.00Deletes a directory and retains its contents in the parent directory (gpl, program, tool)2019-04-180.1.0.0mgttlinger
disco310.00Functional programming language for teaching discrete math. (bsd3, language, library, program)2025-01-220.2BrentYorgey
discord-haskell1632.52Write bots for Discord in Haskell (library, mit, network, program)2026-07-061.19.0Aquarial, yutotakano, annwan, BenjaminMcRae
discord-haskell-voice342.250Voice support for discord-haskell. (discord, library, mit, network, program, udp)2025-03-033.0.0yutotakano
discord-register70.00Discord verification bot (library, mpl, program, web)2021-06-020.0.2HughSipiere
dist-upload170.01Generate/Upload cabal package to Hackage. (distribution, gpl, library, program)2010-11-240.0.4AndyStewart
distributed-closure802.07Serializable closures for distributed programming. (bsd3, control, library, program)2023-11-270.5.0.0AlpMestanogullari, FacundoDominguez, MathieuBoespflug
distributed-process-p2p480.03Peer-to-peer node discovery for Cloud Haskell (bsd3, library, network, program)2026-07-020.1.6.0AlexanderBondarenko
distribution-opensuse350.00Types, functions, and tools to manipulate the openSUSE distribution (bsd3, distribution, library, program)2023-03-301.1.4PeterSimons
diversity690.03Quantify the diversity of a population (bioinformatics, gpl, library, program)2017-09-010.8.1.0GregorySchwartz
dixi420.00A wiki implemented with a firm theoretical foundation. (bsd3, library, program, web)2016-11-290.6.9.2LiamOConnorDavis
djinn150.01Generate Haskell code from a type (bsd3, program, source-tools)2025-02-212025.2.21LennartAugustsson
djot780.01Parser and renderer for djot light markup syntax. (library, mit, program, text)2026-09-240.1.4.3JohnMacFarlane
dl-fedora1380.00Fedora image download tool (gpl, program, utility)2025-12-162.2JensPetersen
dmcc170.00AVAYA DMCC API bindings and WebSockets server for AVAYA (bsd3, library, network, program)2020-02-051.1.0.2DmitryDzhus
dmenu-pkill140.01dmenu script for killing applications. Sortable by process id or CPU/MEM usage. (bsd3, program, system)2017-01-190.1.0.1m0rphism
dmenu-pmount150.01Mounting and unmounting linux devices as user with dmenu and pmount. (bsd3, program, system)2017-01-190.1.0.1m0rphism
dmenu-search170.01dmenu script for searching the web with customizable search engines. (bsd3, program, system)2017-01-190.1.0.1m0rphism
dnf-repo560.00A dnf wrapper with fine control of enabled repos (gpl, program, utility)2026-09-280.7JensPetersen
dnscache220.02Caching DNS resolver library and mass DNS resolver utility (bsd3, library, network, program)2012-01-031.1.0ErtugrulSoeylemez, esz
dobutokO-poetry630.00Helps to order the 7 or less Ukrainian words to obtain somewhat suitable for poetry or music text (Ukrainian, game, language, library, mit, phonetic-languages, poetry, program, uniqueness)2020-09-070.17.0.0OleksandrZhabenko
dobutokO21850.02Helps to create experimental music from a file (or its part) and a Ukrainian text. (Ukrainian, algorithmic-composition, language, library, mit, music, program, rhythm, sound, sox, timbre, tonality)2025-05-280.45.3.0OleksandrZhabenko
doc-review130.01Document review Web application, like http://book.realworldhaskell.org/ (bsd3, program, web)2010-12-060.7.1JoshHoyt
doccheck70.01Checks Haddock comments for pitfalls and version changes. (documentation, gpl, program)2013-08-130.1.0.0MateuszKowalczyk
docidx170.01Generate an HTML index of installed Haskell packages and their documentation. (bsd3, documentation, program)2012-12-061.1.0AndyGimblett
docker-build-cacher490.00Builds a docker image and caches all of its intermediate stages (bsd3, library, operations, program)2018-09-122.1.1lorenzo
dockercook300.01A build tool for multiple docker image layers (development, library, mit, program)2016-09-120.5.0.3AlexanderThiemann
doctest2292.7514Test interactive Haskell examples (library, mit, program, testing)2026-09-240.25.0.2AndreasAbel, KazuYamamoto, SimonHengel, SoenkeHahn, jkarni, ryanglscott, quasicomputational
doctest-discover400.01Easy way to run doctests via cabal (library, program, public-domain, testing)2018-07-220.2.0.0karun012
doctest-discover-configurator (deprecated)80.01Easy way to run doctests via cabal (no aeson dependency, uses configurator instead) (deprecated, library, program, public-domain, testing)2014-12-120.1.0.6RickyElrod
doctest-driver-gen470.00Generate driver file for doctest's cabal integration (bsd3, library, program, testing)2023-11-290.3.0.8Hexirp
doctest-extract180.00Alternative doctest implementation that extracts comments to modules (bsd3, program, testing)2023-12-220.1.2HenningThielemann
document-build100.00Build documents with Haskell (bsd3, development, library, program)2026-10-280.2.0.0TonyMorris
docusign-example42.01DocuSign examples (bsd3, business, program)2018-10-260.1.0.0maerwald
docvim540.00Documentation generator for Vim plug-ins (development, library, mit, program)2016-06-260.3.2.1wincent
doi100.01Automatic Bibtex and fulltext of scientific articles (database, library, mit, program)2017-01-220.0.2johannesgerer
dojang70.00A cross-platform dotfiles manager (configuration, gpl, library, program)2026-07-120.2.1hongminhee
dominion160.01A simulator for the board game Dominion. (bsd3, game, library, program, simulation)2016-12-080.1.1.0AdityaBhargava
dot-linker50.00Initial project template from stack (bsd3, library, program, util)2016-06-270.1.0.0pjrt
dot2graphml140.01Converter from GraphViz .dot format to yEd GraphML (bsd3, graphics, program)2014-09-220.1.0.2IlyaPortnov
dotenv3090.07Loads environment variables from dotenv files (configuration, library, mit, program)2024-02-030.12.0.0jsl, jpvillaisaza, stackbuilders, sestrella, camm, dbalseiro
dotfs200.01Filesystem to manage and parse dotfiles (bsd3, library, program, system)2012-04-210.1.1.3PaulVanDerWalt
dovin140.00A proof assistant for Magic: The Gathering puzzles. (bsd3, games, library, program)2021-01-023.0.1xaviershay
dow250.01Dungeons of Wor (bsd3, frp, game, program, reactivity)2016-06-190.2.6GergelyPatai
download-media-content60.01Simple tool to download images from RSS feeds (e.g. Flickr, Picasa) (application, bsd3, program)2011-08-150.0.0.1JasperVanDerJeugt
dph-examples680.01Data Parallel Haskell example programs. (bsd3, data-structures, program)2012-10-250.7.0.5BenLippmeier
dprox360.00a lightweight DNS proxy server, compatible with dnsmasq-china-list (bsd3, dns, program)2024-01-150.4.3BinJin
dr-cabal200.00See README for more info (development, library, mpl, profiling, program)2022-11-200.2.0.0shersh
drama (deprecated)181.50Actor library for Haskell (bsd3, concurrency, deprecated, library, program)2022-07-170.5.0.0evanrelf
draw-poker70.00playing draw poker (bsd3, game, library, program)2015-07-190.1.0.1outoftune
dresdner-verkehrsbetriebe100.01Library and program for querying DVB (Dresdner Verkehrsbetriebe AG) (library, mit, network, program)2016-11-301.0.0meoblast001
dropbox (deprecated)250.00Dropbox API client (api, deprecated, library, mit, program)2020-10-230.0.4
dropsolve (deprecated in favor of confsolve)60.01A command line tool for resolving dropbox conflicts. Deprecated! Please use confsolve. (bsd3, deprecated, program, utils)2011-12-050.1.2.1DanielTrstenjak
dsh-sql180.00SQL backend for Database Supported Haskell (DSH) (bsd3, database, library, program)2015-06-100.2.0.2AlexUlrich2
dsmc-tools70.01DSMC toolkit for rarefied gas dynamics (bsd3, physics, program)2012-11-240.1.0.1DmitryDzhus
dtab180.01Harmonix (Guitar Hero, Rock Band) DTA/DTB metadata library (bsd3, data, library, program)2021-02-231.2mtolly
dual-game92.01Network multiplayer 2D shooting game (game, mit, program)2018-03-300.1.0.1fgaz
duckling410.00A Haskell library for parsing text into structured data. (bsd3, library, program, systems)2021-04-150.2.0.0patapizza, JonCoens, chessai, haoxuany
duet90.00A tiny language, a subset of Haskell (with type classes) aimed at aiding teachers to teach Haskell (bsd3, library, program, unclassified)2019-11-180.0.2ChrisDone
dunning-t-digest160.00Dunning t-digest for online quantile estimation (bsd3, data, library, program, statistics)2026-03-120.1.0.1nyc
duplo (deprecated)560.01Frontend development build tool (deprecated, library, mit, program, web)2015-02-241.8.1kenhkan
dustme30.00Initial project template from stack (bsd3, library, program, web)2016-06-130.1.0.0MarkWotton
dvault30.00Dead simple password manager (mit, program, unclassified)2019-05-140.1.0.0isd
dwarfadt210.01High-level wrapper around the dwarf library (bsd3, development, library, program)2018-03-180.6EyalLotem
dynamic-pipeline600.00Library Type Safe implementation of Dynamic Pipeline Paradigm (DPP). (bsd3, data, data-flow, library, parallel, pipes, program, streaming, type-safe)2021-08-010.3.2.0jproyo
dzen-dhall150.00Configure dzen2 bars in Dhall language (bsd3, library, program, unclassified)2020-02-181.0.2klntsky
e9571-config-reader-haskell100.00Automatically read config.json from the current directory (configuration, library, mit, program)2025-11-260.1.0.2e9571
earclipper42.01Ear Clipping Triangulation (graphics, library, mit, program)2017-02-070.0.0.1zaidan
early70.00Early return syntax in do-notation (GHC plugin) (bsd3, development, library, program)2021-01-060.0.0ChrisDone
ebird-cli102.00A command-line utility for interacting with the eBird API. (library, mit, program, web)2023-12-170.3.0.1FinleyMcIlwaine
ebml150.00A pure EBML parser (bsd3, codec, library, program)2023-01-290.1.1.0TristanCacqueray
ebnf-bff120.00Parser combinators & EBNF, BFFs! (ebnf, library, metalanguage, mit, parsing, program, text)2015-09-200.1.1.0Lokidottir
ec2-unikernel180.01A handy tool for uploading unikernels to Amazon's EC2. (aws, bsd3, program, unikernel)2018-08-270.9.8AdamWick, EricMertens, galoisinc
ecma26250.03A ECMA-262 interpreter library (bsd2, language, library, program)2014-12-120.0.0FabianBergmark
ecstatic40.00Build "as static as possible" executable on Linux. (distribution, library, mit, program)2025-12-200.1.0.1slycelote
ecta152.01 (bsd3, library, program, unclassified)2022-07-271.0.0.3zhg
ecu270.01Tools for automotive ECU development. (bsd3, embedded, program, utils)2010-11-240.0.8TomHawkins
eddie200.01Command line file filtering with haskell (bsd3, cli-tool, program)2015-05-271.0.0MikeMeyer
ede1360.07Templating language with similar syntax and features to Liquid or Jinja2. (library, mpl, program, template, text, web)2024-12-050.3.4.0BrendanHay
edentv190.01A Tool to Visualize Parallel Functional Program Executions (development, eden, gpl, profiling, program, trace)2015-01-224.10.0MischaDieterle, JostBerthold, horstmeyer
edge1040.01Top view space combat arcade game (game, gpl, program)2016-09-050.9.1.1ChristopherHoward, infrared
edit-lenses-demo80.01Programs demoing the use of symmetric, stateful edit lenses (bsd3, data, program)2016-07-240.1.1DanielWagner
editor-open430.02Open the user's $VISUAL or $EDITOR for text input. (apache, library, program, text)2015-05-190.6.0.0pharpend
editpipe30.01Edit stdin using an editor before sending to stdout. (bsd3, editor, program)2016-03-250.1.0.0puffnfresh
eflint320.00Reference interpreter for eFLINT specifications and scenario evaluation (bsd3, language, library, program)2026-08-244.1.0.1ltvanbinsbergen
egison9482.02Programming language with non-linear pattern-matching against non-free data (compilers-interpreters, library, mit, program)2026-07-205.1.0SatoshiEgi, momohatt
egison-tutorial1510.01A tutorial program for the Egison programming language (compilers-interpreters, mit, program)2021-12-184.1.3SatoshiEgi, momohatt
ehaskell440.01like eruby, ehaskell is embedded haskell. (program, text)2008-12-070.7YoshikuniJujo
eigen-hhlo60.00Dense linear algebra on HHLO (SVD, QR, eigenvalue, Cholesky, LU) (library, machine-learning, math, mit, numeric, program)2026-05-040.1.0.0overshiki
eio30.00IO with Exceptions tracked on the type-level (exceptions, io, library, mpl, program, qualifieddo)2021-03-200.0.0.0vrom911
elerea-examples390.01Example applications for Elerea (bsd3, frp, program, reactivity)2016-06-192.9.0GergelyPatai
elision240.00Arrows with holes. (bsd2, control, library, program)2016-02-180.1.3.2jacrough
elm-compiler (deprecated)212.03Values to help with elm-package, elm-make, and elm-lang.org. (bsd3, compiler, deprecated, language, library, program)2015-04-200.15EvanCzaplicki
elm-get (deprecated in favor of elm-package)240.01Tool for sharing and using Elm libraries (bsd3, deprecated, language, library, program)2014-09-220.1.3EvanCzaplicki
elm-init412.01Set up basic structure for an elm project (development, mit, program)2016-09-101.0.5justus
elm-make (deprecated)160.01A build tool for Elm projects (bsd3, build-tool, deprecated, program)2015-04-200.1.2EvanCzaplicki
elm-package (deprecated)190.01Package manager for Elm libraries (bsd3, deprecated, language, library, program)2015-04-200.5EvanCzaplicki
elm-reactor (deprecated)150.01Interactive development tool for Elm programs (bsd3, compiler, deprecated, language, program)2015-04-200.3.1EvanCzaplicki
elm-repl (deprecated)310.01a REPL for Elm (bsd3, deprecated, program, tool)2015-04-200.4.1EvanCzaplicki
elm-server (deprecated in favor of elm-reactor)620.01Server for developing Elm projects (bsd3, compiler, deprecated, language, program)2014-05-200.11.0.1EvanCzaplicki
elm-street620.00Crossing the road between Haskell and Elm (compiler, elm, language, library, mpl, program)2025-12-150.2.2.2vrom911, HolmuskTechTeam
elm-websocket50.00Generate ELM code from a Wai websocket application. (bsd3, library, program, web)2017-11-011.0rhyskeepence
elm2nix300.00Turn your Elm project into buildable Nix project (bsd3, library, program, unclassified)2025-09-090.5.0domenkozar
elmental120.00Generate Elm datatype definitions, encoders and decoders from Haskell datatypes. (bsd3, codegen, library, program)2024-06-050.1.0.2GaelDeest
elocrypt350.01Generate easy-to-remember, hard-to-guess passwords (cryptography, library, program)2019-12-162.1.0sgillespie
elsa290.00A tiny language for understanding the lambda-calculus (language, library, mit, program)2025-10-010.3.0.0ranjitjhala
elynx740.00Validate and (optionally) redo ELynx analyses (bioinformatics, gpl, program)2025-08-110.9.0.0dschrempf
email-validator200.01Perform basic syntax and deliverability checks on email addresses. (agpl, program, utils)2024-05-151.8.7MichaelOrlitzky
emanote170.00Emanate a structured view of your plain-text notes (agpl, library, program, web)2025-08-191.4.0.0sridca
embeddock100.02Embed the values in scope in the haddock documentation of the module (bsd3, documentation, library, program)2013-06-020.3.0.1TakayukiMuranushi
embroidery30.01support for embroidery formats in haskell (codec, gpl, library, program)2011-07-310.1JimSnavely
emhell40.00Embedded shell (bsd3, embedded, library, program)2024-01-030.1.1.0srk
emoji92.02emoji utility (bsd3, library, program, unicode)2018-01-050.1.0.2nakaji_dayo
encapsule260.00Run isolated toolbox containers with podman (apache, program, utility)2026-10-100.6JensPetersen
eng-stemmer70.00An English language stemmer (Porter2) (bsd3, library, nlp, program, stemming)2018-01-090.1.0.2ChrisCoffey
entangle80.00An application (and library) to convert quipper circuits into Qpmc models. (library, mit, program, unclassified)2017-01-060.1.1miniBill
enum-text-rio90.01Making fmt available with rio (bsd3, control, library, program)2019-07-231.2.0.0ChrisDornan
enumerate140.01enumerate all the values in a finite type (automatically) (data, library, mit, program)2017-05-020.2.2sboo
enumerate-function100.00simple package for inverting functions and testing totality, via brute enumeration of the domain (bsd3, library, program, todo)2017-05-020.0.1sboo
envstatus90.00Display efficiently the state of the local environment (development, library, mit, program)2018-10-281.0.2gbataille
eo-phi-normalizer730.00Command line normalizer of 𝜑-calculus expressions. (bsd3, library, program, unclassified)2025-01-133.2.0NickolayKudasov, deemp
epic330.03Compiler for a simple functional language (bsd3, compilers-interpreters, library, program)2015-03-280.9.3.3AndreasAbel, EdwinBrady
epub (deprecated in favor of epub-metadata)230.02EPUB E-Book construction support library (bsd3, deprecated, library, program, text)2012-06-230.0.7RadoslavDorcik
epub-metadata642.01Library for parsing epub document metadata (codec, library, program, text)2024-01-265.4DinoMorelli
epub-tools810.01Command line utilities for working with epub files (application, console, program)2026-06-144.0DinoMorelli
epubname (deprecated in favor of epub-tools)90.01Rename epub ebook files based on meta information (application, bsd3, console, deprecated, program)2011-02-222.3.2DinoMorelli
equal-files390.01Shell command for finding equal files (console, program)2023-01-150.0.5.4HenningThielemann
erd200.01An entity-relationship diagram generator from a plain text description. (database, development, program, public-domain)2020-02-020.2.1.0burntsushi, mmzx
erebos570.00Decentralized messaging and synchronization (bsd3, library, network, program)2026-10-150.2.4RomanSmrz
erebos-tester242.00Test framework able to run given program on multiple nodes in virtual network (gpl, program, testing)2026-09-080.3.6RomanSmrz
eros-client80.01DEPRECATED in favor of eros-http (bsd3, program, text)2014-07-200.5.0.1pharpend
eros-http60.01JSON HTTP interface to Eros. (bsd3, program, text)2014-07-200.6.0.1pharpend
errata260.02Source code error pretty printing (library, mit, pretty-printer, program)2024-12-100.4.0.3comp
ersaconcat40.01A script to concatenate AIP ERSA (aviation, bsd3, library, program)2016-09-170.0.1TonyMorris
ert130.01Easy Runtime Templates (gpl, library, program, text)2015-04-300.0.2.1kayo
escaped110.00Produce Text with terminal escape sequences (library, mit, program, text)2024-08-271.1.0.0PatrickBrisbin
escoger20.00Terminal fuzzy selector (library, mit, program, tools)2018-03-290.1.0.0TomMurphy
esotericbot270.01Esotericbot is a sophisticated, lightweight IRC bot. (bsd3, library, program, web)2009-06-230.0.6JohnnyMorrice
essence-of-live-coding530.06General purpose live coding framework (bsd3, frp, library, live-coding, program)2025-09-080.2.9turion
essence-of-live-coding-gloss-example (deprecated)180.00General purpose live coding framework - Gloss example (bsd3, deprecated, frp, live-coding, program)2021-04-080.2.5turion
essence-of-live-coding-pulse-example (deprecated)190.00General purpose live coding framework - pulse backend example (bsd3, deprecated, frp, live-coding, program)2020-09-110.2.4turion
estreps130.01Repeats from ESTs (bioinformatics, program)2009-10-070.3.1GwernBranwen, KetilMalde
ethereum-analyzer-cli570.00A CLI frontend for ethereum-analyzer. (apache, cli, ethereum, library, program, static-analysis)2017-12-253.3.4zchn
ethereum-analyzer-webui640.00A web frontend for ethereum-analyzer (apache, ethereum, library, program, static-analysis, web)2017-12-253.3.4zchn
ethereum-client-haskell220.01A Haskell version of an Ethereum client (bsd3, data-structures, program)2015-01-020.0.4jamshid
ety70.01Random etymology online entry. (bsd3, library, program, web)2012-02-150.1ChrisDone
eve-cli30.00 (bsd3, library, program, unclassified)2018-04-050.2.0.0ChrisPenner
event-transformer (deprecated)50.00Initial project template from stack (bsd3, control, deprecated, library, program)2016-10-100.1.0.0SchellScivally
eventlog-live280.02Real-time monitoring for any Haskell application with little to no instrumentation (bsd3, debug, library, monitoring, program, system)2026-09-170.10.0.0wenkokke
eventlog-live-influxdb110.00Stream eventlog data into InfluxDB. (bsd3, debug, library, monitoring, program, system)2025-11-060.2.0.1wenkokke
eventlog-live-otelcol (deprecated in favor of eventlog-live)670.00Stream eventlog data to the OpenTelemetry Collector. (bsd3, debug, deprecated, library, monitoring, program, system)2026-07-270.7.0.0wenkokke
eventlog2html810.01Visualise an eventlog (bsd3, development, library, program)2025-06-030.12.0mpickering, fendor, DavidBinder
eventsourced60.00Server-Sent Events the UNIX way (library, mit, network, program)2016-05-151.1.1.0richardTowers
ewe580.01An interpreter for EWE programming language (bsd3, language, program)2019-02-040.3.1.1JuanFranciscoCardonaMcCormick
example-haskell-project30.00Example Haskell Project (bsd3, example, library, program)2020-04-040.1.0.0haskellworks
execs20.00Tool to run stack exec prj-exe more easy (library, mit, program, utils)2016-08-020.1.0.0wapxmas
executable-hash350.01Provides the SHA1 hash of the program executable (library, mit, program, system)2017-01-040.2.0.4MichaelSloan, MichaelSnoyman
exherbo-cabal160.00Exheres generator for cabal packages (distribution, gpl, library, program)2017-02-090.2.1.1NikolayOrlyuk
exp-cache150.00 (library, mit, program, unclassified)2018-10-190.1.0.2ChrisCoffey
explain70.01Show how expressions are parsed (language, mit, program)2014-01-130.1.0.1JoelTaylor
explore390.01Experimental Plot data Reconstructor (bsd3, graphics, program)2010-03-130.0.7.2CetinSert
expresso320.00A simple expressions language based on row types (bsd3, configuration, library, program)2020-04-020.1.2.3willtim
extemp50.01automated printing for extemp speakers (bsd3, program, web)2010-10-050.0.1SamAnklesaria
extensible-effects-concurrent1702.00Message passing concurrency as extensible-effect (bsd3, concurrency, control, effect, library, program)2020-12-162.0.0SvenHeyll
extensioneer70.00Inspect extensions in cabal and hpack files (cli, mit, program)2022-04-280.1.0.0eyeinsky
extism-pdk372.00Extism Plugin Development Kit (bsd3, library, plugins, program, wasm)2024-10-241.2.0.0Extism, zshipko
extract-dependencies130.01Given a hackage package outputs the list of its dependencies. (development, library, mit, program)2016-05-310.2.0.1yamadapc
extractelf80.01Extract an ELF's metadata and sections into files (bsd3, development, program)2013-09-210.1.0.0EyalLotem
f-ree-hack-cheats-free-v-bucks-generator (deprecated)70.01Spam (bsd3, deprecated, program, spam)2018-09-170.2
factor270.00Factoring integers and polynomials (library, mit, number-theory, program)2022-06-151.6JoeHurd
factory670.05Rational arithmetic in an irrational world. (gpl, library, math, number-theory, program)2021-08-250.3.2.3AlistairWard, LennartAugustsson
faktory1570.02Faktory Worker for Haskell (library, mit, network, program)2026-07-231.2.0.0PatrickBrisbin, dukerutledge, mjgpy3, chris_martin, FreckleEngineering, OlaoluwaM
falling-turnip50.01Falling sand game/cellular automata simulation using regular parallel arrays. (bsd3, game, program)2012-11-140.1.0.0TranMa
fallingblocks180.01A fun falling blocks game. (game, program)2009-03-290.1.4BenSanders
fast-tags560.01Fast incremental vi and emacs tags. (bsd3, development, haskell, library, program)2025-01-272.0.3EvanLaforge, SergeyVinokurov
fastcdc70.00An implementation of FastCDC, a content-defined chunking algorithm based on the Gear hash rolling hash algorithm (bsd3, library, program, unclassified)2022-09-290.0.0gkleen
fay3400.013A compiler for Fay, a Haskell subset that compiles to JavaScript. (bsd3, development, fay, library, program, web)2021-01-100.24.2.0AdamBergmark, ChrisDone, swamp_agr
fbmessenger-api190.00High-level bindings to Facebook Messenger Platform API (bsd3, library, program, web)2016-11-120.1.2.1mseri
fbrnch960.00Fedora packager tool to build package branches (distribution, gpl, program)2026-06-031.8.3JensPetersen
fcd50.01A faster way to navigate directories using the command line. (library, mit, program, utility)2014-10-181.0.0.0Neki
fcf-containers500.02Data structures and algorithms for first-class-families (bsd3, library, other, program)2023-04-150.8.2gspia
fcg40.01TBA (bsd3, database, program)2018-02-260.0.0chessai
fcm-client90.00Admin API for Firebase Cloud Messaging (bsd3, fcm, json, library, program)2019-09-200.2.0.0vrom911, HolmuskTechTeam
fdo-trash80.01Utilities related to freedesktop Trash standard. (bsd3, desktop, library, program)2012-12-260.0.0.2EmilKarlson
fec140.02Forward error correction of ByteStrings (codec, gpl, library, program)2023-10-060.2.0AdamLangley, ShaeErisson, jcalderone
fedora-composes90.00Query Fedora composes (bsd3, program, utility)2024-09-090.2.1JensPetersen
fedora-haskell-tools340.01Building and maintenance tools for Fedora Haskell (distribution, gpl, program)2026-02-171.2JensPetersen
fedora-img-dl (deprecated in favor of dl-fedora)170.00Fedora image download tool (deprecated, gpl, program, utility)2019-06-030.4JensPetersen
fedora-repoquery800.00Fedora release repos package query tool (gpl, program, utility)2026-06-280.9.1JensPetersen
fee-estimate40.00Short description of your package (bsd3, library, program, unclassified)2017-12-140.1.0.0sahabi
feed-cli110.01A simple command line interface for creating and updating feeds like RSS (bsd3, program, text, web)2009-07-052009.7.5IsaacJones
feed-gipeda200.00CI service around gipeda (benchmarking, bsd3, library, program)2016-10-310.3.0.1sgraf812
feed-translator80.01Translate syndication feeds (agpl, program, web)2015-09-040.1.0.2hongminhee
feed2lj (deprecated)100.01(unsupported) (bsd3, deprecated, program, unclassified)2011-02-210.0.3.1SergeyAstanin
feed2twitter60.01Send posts from a feed to Twitter (bsd3, library, program, web)2009-05-210.2.0TomLokhorst
feedback140.00Declarative feedback loop manager (gpl, library, program, unclassified)2025-05-200.2.0.0Norfair
fei-base80.05FFI to MXNet (ai, bsd3, library, machine-learning, program)2020-12-201.0.0JiasenWu
fei-cocoapi100.01Cocodataset with cocoapi (ai, bsd3, library, machine-learning, program)2020-12-201.0.0JiasenWu
fei-dataiter (deprecated in favor of fei-nn)60.01mxnet dataiters (ai, bsd3, deprecated, library, machine-learning, program)2019-09-170.2.0.0JiasenWu
fei-datasets70.00Some datasets (ai, bsd3, library, machine-learning, program)2020-12-201.0.0JiasenWu
fei-examples80.00fei examples (ai, bsd3, machine-learning, program)2020-12-201.0.0JiasenWu
fen2s90.01Converting a chess position from FEN notation to text (game, library, mit, program)2015-05-131.2JoeHurd
fenfire40.01Graph-based notetaking system (program, user-interfaces)2007-02-130.1BenjaFallenstein
festung50.00Remote multi-db SQLCipher server (concurrency, library, mit, program)2018-06-280.9.1.2figo
ffeed140.01Haskell binding to the FriendFeed API (bsd3, library, program, web)2008-11-230.3.2SigbjornFinne
ffmpeg-tutorials110.01Tutorials on ffmpeg usage to play video/audio (bsd3, media, program)2009-10-270.3.3VasylPasternak
fibon60.01Tools for running and analyzing Haskell benchmarks (benchmarking, bsd3, program)2010-11-090.2.0DavidPeixotto
ficketed30.01update statically hosted file in a push stule through socketed (mit, program, web)2017-04-130.1.0.0sencenan
file-modules220.01Takes a Haskell source-code file and outputs its modules. (development, library, mit, program)2016-08-110.1.2.4yamadapc
file-templates50.01Use templates for files and directories (bsd3, cli, program, template)2017-07-011.1.0.0anfelor
filter-logger170.00Filterable request logging wai middleware. Change how data is logged and when. (library, mit, program, web)2017-07-150.6.0.0jmc41493
find-clumpiness290.01Find the clumpiness of labels in a tree (gpl, library, math, program)2019-01-210.2.3.2GregorySchwartz
find-conduit (deprecated in favor of pipes-files, conduit-find)520.01A file-finding conduit that allows user control over traversals. (deprecated, library, mit, program, system)2015-07-110.4.4JohnWiegley
findhttp100.00List http/html files (gpl, program, utility)2022-10-190.1.1JensPetersen
firefly-example50.01A simple example using Firefly (bsd3, program, web)2017-09-080.1.0.0ChrisPenner
firstify90.01Defunctionalisation for Yhc Core (bsd3, development, library, program)2008-04-030.1NeilMitchell
fishfood300.01Calculates file-size frequency-distribution. (library, program, utils)2020-08-100.0.1.11AlistairWard
fits-parse310.01Parse FITS files (bsd2, library, program, science)2024-07-300.4.2krakrjak
fix-imports550.01Program to manage the imports of a haskell module (bsd3, editor, haskell, ide, program)2025-02-162.5.0EvanLaforge
fix-whitespace320.00Fixes whitespace issues. (library, mit, program, text)2023-08-070.1AndreasAbel, AndresSicardRamirez, NilsAndersDanielsson, UlfNorell, LTChen
fixedwidth-hs180.01Quick parsing of fixed-width data formats. (library, mit, program, text)2015-05-220.4.0.1MichaelOChurch
fixhs180.01FIX (co)parser (lgpl, library, parsing, program, protocol, text)2012-07-110.1.4ArvinMoezzi
fizzbuzz-as-a-service261.251FizzBuzz as a service (apache, network-apis, program)2018-09-110.1.0.3chris_martin
flaccuraterip440.01Verify FLAC files ripped form CD using AccurateRip™ (gpl, program, sound)2020-06-100.3.9NicolaSquartini
flamingra190.01FlameGraphs of profiling (bsd3, development, library, program)2016-06-190.2AntonNikishaev
flashblast280.00Generate language learning flashcards from video. (library, mit, program, unclassified)2020-11-180.0.9.0locallycompact
flat-tex350.01flatten a latex multi-file latex document and remove all comments (gpl, program, text)2026-01-220.8.2JohannesWaldmann
flexible-unlit100.01A configurable reimplementation of unlit (bsd3, development, library, program)2013-11-100.2013.314.0StijnVanDrongelen
flickr150.01Haskell binding to the Flickr API (bsd3, library, program, web)2009-01-030.3.3SigbjornFinne
flip-cmd50.01e.g. `flip systemctl foo.service start` does `systemctl start foo.service` (mit, program, simple)2018-02-250.1.0.0aiya000
flo100.01Generate flow charts from your code base. (bsd3, development, library, program)2015-09-140.1.1ChrisDone
floskell422.01A flexible Haskell source code pretty printer (bsd3, development, library, program)2023-12-180.11.1ecramer
flow2dot480.01Library and binary to generate sequence/flow diagrams from plain text source (bsd3, console, library, program, tool)2020-06-160.9.2DmitryAstapov
flowdock-api90.01API integration with Flowdock. (library, mit, network, program)2013-11-120.1.0.0gabemc
flower590.01Analyze 454 flowgrams (.SFF files) (bioinformatics, program)2013-09-190.7.2KetilMalde
flowsim330.01Simulate 454 pyrosequencing (bioinformatics, gpl, program)2013-11-190.3.5KetilMalde
flp70.00A layout spec language for memory managers implemented in Rust. (compiler, library, mit, program)2020-01-270.1.0.0KarlCronburg
fltkhs3762.03FLTK bindings (graphics, gui, library, mit, program, ui, user-interfaces)2020-02-210.8.0.3deech
fltkhs-demos (deprecated)100.01FLTKHS demos. Please scroll to the bottom for more information. (deprecated, graphics, mit, program, ui)2016-02-240.0.0.7deech
fltkhs-fluid-demos (deprecated)80.01Fltkhs Fluid Demos (deprecated, graphics, mit, program, ui)2016-02-240.0.0.6deech
fltkhs-fluid-examples (deprecated in favor of fltkhs-fluid-demos)80.01Fltkhs Fluid Examples (deprecated, graphics, mit, program, ui)2016-01-150.0.0.3deech
fltkhs-hello-world30.01Fltkhs template project (graphics, mit, program, ui)2016-01-150.0.0.2deech
fluent-lint60.00Static analysis tool for validating Project Fluent translation files (language, program)2026-10-201.0.0IDA
fluffy52.01A simple web application as a online practice website for XDU SE 2017 fall SPM. (gpl, program, web)2017-11-270.1.0.71qinka
fmark60.01A Friendly Markup language without syntax. (bsd3, program, typography)2012-09-180.1.1JoseLopes
folgerhs90.00Toolset for Folger Shakespeare Library's XML annotated plays (gpl, library, program, text)2018-01-250.3.0.2umazalakain
follow60.00Haskell library to follow content published on any subject. (lgpl, library, program, web)2018-09-140.1.0.0cram1010
follow-file300.00Be notified when a file gets appended, solely with what was added. Warning - only works on linux and for files that are strictly appended, like log files. (bsd3, filesystem, library, program)2018-11-270.0.3athanclark
follower80.01Follow Tweets anonymously (application, console, gpl, program, web)2011-01-230.0.1EmreBasar
font-opengl-basic4x670.01Basic4x6 font for OpenGL (graphics, library, program, public-domain)2012-06-040.0.3BrianLewis
fontconfig-pure440.01Queries your system (Linux/BSD/etc) font database. (library, mit, program, text)2025-02-030.5.1.0alcinnz
fontwhich100.00Determine fonts used to render text (gpl, program, utility)2026-03-270.3JensPetersen
foo40.01Paper soccer, an OpenGL game. (game, program)2008-08-161.0DonaldStewart
foobar (deprecated)70.00Initial project template from stack (bsd3, deprecated, library, program, web)2016-06-290.1.0.0parsonsmatt
fordo20.01Run a command on files with magic substituion support (sequencing and regexp) (program, utils)2010-11-220.1ChengqiSong
forest-fire230.00Recursively delete CloudFormation stacks and their dependants (bsd3, library, program, silly-tool)2017-12-270.3toothbrush
forex2ledger82.00Print Forex quotes in Ledger format (agpl, finance, library, program)2021-07-281.0.0.2gregorias
forger (deprecated)40.00Library for generating fake placeholder data (bsd3, deprecated, library, program, text)2015-04-220.0.0.0StefanFischer
formal70.01A statically typed, functional programming language (compiler, mit, program)2012-11-120.1.0AndrewStein
format-status90.01A utility for writing the date to dzen2. (mit, program, unclassified)2014-06-060.2.0.0georgerogers42
forml120.01A statically typed, functional programming language (compiler, mit, program)2013-01-140.2AndrewStein
forms-data-format160.01Parse and serialize FDF, the Forms Data Format (bsd3, data, library, program, text)2026-02-170.3MarioBlazevic
formura60.00Formura is a simple language to describe stencil computation. (language, library, mit, program)2015-12-041.0TakayukiMuranushi
fortran-src1210.03Parsers and analyses for Fortran standards 66, 77, 90, 95 and 2003 (partial). (apache, language, library, program)2025-12-190.16.9DominicOrchard, mdanish, madgen, raehik, nhuber
fortran-src-extras330.01Common functions and utils for fortran-src. (apache, language, library, program)2025-12-190.5.5DominicOrchard, mdanish, madgen, raehik, nhuber
fortran-vars160.00Fortran memory model and other static analysis tools. (apache, language, library, program)2023-06-220.4.0DominicOrchard, raehik, nhuber
foscam-sort120.01Foscam File format (bsd3, data, file, library, parsing, program)2016-11-260.0.3TonyMorris
fourmolu1201.251A formatter for Haskell source code (bsd3, development, formatting, library, program)2026-10-040.21.0.0parsonsmatt, brandonchinn178, GeorgeThomas
fptest280.01IEEE754r floating point conformance tests (bsd3, math, program)2018-11-150.2.3.0jrp
fquery220.01Installed package query tool for Gentoo Linux (gentoo, program)2016-05-080.2.3solpeth, hololeap
fractal70.01Draw Newton, Julia and Mandelbrot fractals (bsd3, graphics, program)2009-06-170.0.1MaxRabkin
frag280.01A 3-D First Person Shooter Game (game, program)2008-10-111.1.2DonaldStewart, GwernBranwen
frame50.02A simple web framework. (bsd3, library, program, web)2010-05-300.1AdamDunkley
franz140.00Append-only database (bsd3, database, library, program)2022-01-140.5.3FumiakiKinoshita
frecently60.00CLI frecency history (bsd3, command-line-tools, program)2022-06-071.0jonascarpay
free-er10.00An extensible effects library (bsd3, control, effect, library, program)2017-10-100.1.0.0OmerAgacan
free-theorems-counterexamples130.01Automatically Generating Counterexamples to Naive Free Theorems (language, library, program, public-domain)2013-02-140.3.1.0DanielSeidel, JanisVoigtlaender
free-theorems-seq-webui80.01Taming Selective Strictness (language, program, public-domain)2011-03-301.0.0.2DanielSeidel, JanisVoigtlaender
free-theorems-webui160.01CGI-based web interface for the free-theorems package. (language, program, public-domain)2013-02-180.2.1.1DanielSeidel, JanisVoigtlaender, MatthiasBartsch
free-v-bucks-generator-no-survey (deprecated)30.01Spam (bsd3, deprecated, program, spam)2018-09-170.3
free-v-bucks-generator-ps4-no-survey (deprecated)60.01Spam (bsd3, deprecated, music, program, sound)2018-09-170.2
free-vl250.00van Laarhoven encoded Free Monad with Extensible Effects (bsd3, control, library, monads, program)2016-02-100.1.4aaronlevin
freekick2230.01A soccer game (game, program)2011-06-250.1.2AnttiSalonen
freer222.250Implementation of the Freer Monad (bsd3, control, library, program)2016-11-250.2.4.1alleledev
freer-effects142.02Implementation of effect system for Haskell. (bsd3, control, library, program)2017-04-160.3.0.1MatejKollar, PeterTrsko, TomasJanousek
freer-simple422.012A friendly effect system for Haskell. (bsd3, control, library, program)2022-01-071.2.1.2lexi_lambda
freesect150.01A Haskell syntax extension for generalised sections (bsd3, language, program)2012-03-210.8AndrewSeniuk
fregel30.00A functional DSL for vertex-centric large-scale graph processing (language, mit, program)2023-07-201.2.0KentoEmoto
frequent-substring40.00Identifies and replaces frequent subsequences in long strings (bsd3, cli-tool, library, program)2025-01-160.1.0.0mherzl
friendly222.251Attempt to pretty-print any input (bsd3, development, program)2025-07-190.1.1EdskoDeVries
fromhtml250.00Simple adapter for transformation of HTML to other formats (library, mit, program, text)2020-01-141.0.4MarekSuchanek
frotate80.00Advanced rotation of backups and other things (math, program, system)2019-08-310.1.1ip1981
frown380.01LALR(k) parser generator (program, unclassified)2016-03-060.6.2.3
frpnow-vty110.00Program terminal applications with vty and frpnow! (control, gpl, library, program)2018-03-190.2.0.1JaroReinders
frquotes70.01Lexical extension for Quasi-Quotations using French-Quotes (bsd3, library, program, text)2011-10-130.2.1NicolasPouillard
fsnotify1452.068Cross platform library for file change notification. (bsd3, filesystem, library, program)2025-08-250.4.4.0GregWeber, MarkDittmer, RaphaelJavaux, RomanCheplyaka, thomasjm
fst120.02Finite state transducers (bsd3, compilers-interpreters, library, program)2015-04-290.10.0.1GwernBranwen, JohnCamilleri, ThomasHallgren
fswait70.01Wait and observe events on the filesystem for a path, with a timeout (bsd3, program, tools)2017-06-281.1.0ParnellSpringmeyer
fswatch220.01File System watching tool with cli and slave functionalities. (bsd3, filesystem, library, program)2018-12-130.1.0.6kelemzol
fswatcher260.01Watch a file/directory and run a command when it's modified (bsd3, program, tools)2023-10-280.4.0ErlendHamberg
ft-generator100.00implementation accompanying a WFLP'19 paper (language, program)2019-08-291.0.1JanisVoigtlaender
ftshell110.01Shell interface to the FreeTheorems library. (language, program, public-domain, source-tools)2010-10-120.3.0.1JanisVoigtlaender, JoachimBreitner, MatthiasBartsch
fudgets150.00The Fudgets Library (concurrency, gui, library, network, program)2026-10-050.18.4.1ThomasHallgren
fullstop200.02Simple sentence segmenter (bsd3, library, natural-language-processing, program)2014-08-210.1.4EricKow, RoganCreswick
funbot260.01IRC bot for fun, learning, creativity and collaboration. (irc, network, program, public-domain)2016-01-270.5akrasner
funbot-git-hook70.01Git hook which sends events to FunBot. (network, program, public-domain, web)2015-09-270.1akrasner
funcons-intgen60.00Generate Funcons interpreters from CBS description files (compilers, mit, program)2026-04-080.2.0.3ltvanbinsbergen
funcons-lambda-cbv-mp60.01call-by-value lambda-calculus with meta-programming (bsd3, language, program)2018-07-080.1.0.2ltvanbinsbergen
funcons-simple150.01A modular interpreter for executing SIMPLE funcons (compilers-interpreters, mit, program)2018-12-140.1.0.7ltvanbinsbergen
funcons-tools262.00A modular interpreter for executing funcons (compilers-interpreters, library, mit, program)2026-03-190.2.0.16ltvanbinsbergen
funflow402.02Workflows with arrows (control, library, mit, program)2020-03-091.6.0nclarke
funion100.01A unioning file-system using HFuse (bsd3, program, system)2010-04-060.0.2NathanWiegand
funsat380.02A modern DPLL-style SAT solver (algorithms, bsd3, library, program)2011-02-270.6.2DenisBueno
futhark9192.251An optimising compiler for a functional, array-oriented language. (futhark, library, program)2026-10-270.28.2TroelsHenriksen
futhask222.00Generate Haskell wrappers for Futhark libraries (bsd3, ffi-tools, library, program)2026-10-281.2.0GustenIsfeldt
futun120.01Simple IP-over-UDP tunnel using TUNTAP (gpl, network, program, system)2013-05-240.1.0.2JussiMaki
fuzzyfind230.00Fuzzy text matching (library, mit, program, text)2024-06-273.0.2runar
fuzzytime350.01A 'ten past six' style clock (library, program, utils)2016-12-060.7.8KamilStachowski
g-npm110.01Generate Gentoo ebuilds from NodeJS/npm packages. (mit, program, tools)2013-08-010.1.0JesusRivero
g2110.01Haskell symbolic execution engine. (bsd3, formal-methods, library, program, symbolic-computation)2024-03-220.2.0.0WilliamHallahan
g4ip-prover130.01Theorem prover for intuitionistic propositional logic using G4ip (library, logic, mit, program)2018-12-282.0.0.0klntsky
gachi-cli50.00Unified command-line interface for the gachi ecosystem engine (cli, development, library, program, tools)2026-11-030.1.0.1nyc
gact110.01General Alignment Clustering Tool (bioinformatics, program)2012-03-260.2KetilMalde
game-of-life90.01Conway's Game of Life (mit, program, unclassified)2016-10-210.1.0.5marcusbuffett
gameclock120.01Game clock that shows two analog clock faces (game, program)2008-09-121.0.4AbramClark
gamgee (deprecated)130.00Tool for generating TOTP MFA tokens. (authentication, command-line, deprecated, library, mpl, program)2021-04-141.2.2rkaippully
garepinoh160.01reverse prefix notation calculator and calculation library (console, library, math, program, public-domain, tools)2014-01-210.9.9.2.1MekeorMelire
gargoyle-postgresql152.02Manage PostgreSQL servers with gargoyle (bsd3, library, postgresql, program)2025-08-070.2.0.4RyanTrinkle, abrar, alexfmpe, maralorn, ymeister
gargoyle-postgresql-nix210.01Manage PostgreSQL servers with gargoyle and nix (bsd3, library, program, system)2025-08-070.3.0.4RyanTrinkle, abrar, alexfmpe, maralorn, ymeister
gbs-downloader30.00A library for downloading data from a Great Black Swamp server (bsd3, library, network, program)2023-08-170.1.0.0ShaeErisson, jcalderone
gcodehs140.00GCode processor (bsd3, library, parsing, program)2020-06-170.1.2.0srk
gdax150.00API Wrapping for Coinbase's GDAX exchange. (library, mit, program, web)2017-10-040.6.0.0andrewrademacher
gdo120.01recursive atomic build system (distribution, gpl, program)2017-02-230.1.5seppeljordan
gdp102.254Reason about invariants and preconditions with ghosts of departed proofs. (bsd3, library, program, safe)2019-11-130.0.3.0mnoonan
gearbox210.01zooming rotating fractal gears graphics demo (demo, gpl, program)2018-11-061.0.0.6ClaudeHeilandAllen
gearhash50.01An implementation of Gear hash, a fast rolling hash algorithm (bsd3, library, program, unclassified)2022-09-291.0.0gkleen
geek-server90.01Geek blog engine server (library, program, web)2014-05-191.1JinjingWang
gelatin140.04A graphics description language. (graphics, library, mit, program)2017-11-030.1.0.1SchellScivally
gelatin-gl50.02OpenGL rendering routines for the gelatin-picture graphics EDSL. (graphics, library, mit, program)2017-10-270.1.0.0SchellScivally
gelatin-sdl270.00An SDL2 backend for the gelatin renderer. (graphics, library, mit, program)2017-10-300.1.1.0SchellScivally
gemini-exports192.00Generate CSV Exports of Your Gemini Trades, Transfers, & Earn Transactions (bsd3, console, finance, library, program, web)2026-09-250.1.0.3lysergia
gemini-textboard90.00A barebones textboard for the Gemini protocol (bsd3, gemini, program)2025-05-310.2.0.2fgaz
gemmula-altera (deprecated)150.00A tiny gemtext converter for gemmula (agpl, deprecated, gemini, library, program, text)2024-07-232.1.1jan_sena
gen-passwd100.01Create wordlist-based passwords easily (bsd3, cli, program)2017-07-011.1.0.0anfelor
genai-lib110.00A library for interacting with various generative AI LLMs (ai, library, program)2025-04-242.1.0DinoMorelli
gender100.01Identify a persons gender by their first name (language, lgpl, library, program)2013-02-160.1.1.0KraniumGikos
generic-trie272.04A map, where the keys may be complex structured data. (bsd3, data, library, program)2022-10-150.3.2EricMertens, dfeuer
genetics50.01A Genetic Algorithm library (bsd3, machine-learning, program)2013-06-130.0.2AndrewPennebaker
geni-gui220.01GenI graphical user interface (library, natural-language-processing, program)2017-09-230.25.1EricKow
geni-util350.01Companion tools for use with the GenI surface realiser (gpl, library, natural-language-processing, program)2017-10-030.25.0.1EricKow
geniconvert90.01Conversion utility for the GenI generator (natural-language-processing, program)2009-09-290.20EricKow
geniserver130.02Simple HTTP server for GenI results (library, natural-language-processing, program)2017-09-230.25EricKow
getemx60.01Fetch from emusic using .emx files (bsd3, program, web)2011-05-180.1BenWolfson
gf1080.01Grammatical Framework (compiler, library, natural-language-processing, program)2025-08-08JohnCamilleri, KrasimirAngelov, ThomasHallgren, inariksit, anka213
ggtsTC240.01A type checker and runtime system of rCOS/g (impl. of ggts-FCS). (gpl, program, system---)2014-01-290.5brianchon
gh70.00Haskell bindings for gh CLI (library, mit, program, system)2025-09-250.2.0.0sridca
gh-labeler30.01Github Standard Labeler (bsd3, program, unclassified)2018-03-130.1.0VincentHanquez
gh-pocket-knife20.00Script helpers for interacting with GitHub (bsd3, library, network, program)2016-09-220.1.0.0PatrickBrisbin
ghc-bench420.00Benchmark a Haskell development system (development, mit, program)2026-05-020.3.4SimonHengel
ghc-build-stats40.00A tool for analysing the output of ghc-build-stats-plugin (bsd3, development, library, program)2026-06-030.1.0.0teo
ghc-core540.01Display GHC's core and assembly output in a pager (bsd3, development, program)2012-11-110.5.6DonaldStewart, ShachafBenKiki
ghc-core-html130.01Core to HTML display (bsd3, development, program)2015-07-040.1.4VincentHanquez
ghc-debug-brick500.00A simple TUI using ghc-debug (bsd3, library, program, unclassified)2026-03-250.8.0.0mpickering, fendor
ghc-debugger (deprecated in favor of haskell-debugger)170.00A step-through machine-interface debugger for GHC Haskell (bsd3, deprecated, development, library, program)2025-06-270.4.0.0romes
ghc-dump-tree120.00Dump GHC's parsed, renamed, and type checked ASTs (bsd3, development, library, program)2016-10-030.2.0.2EdskoDeVries
ghc-dump-util170.00Handy tools for working with ghc-dump dumps (bsd3, development, library, program)2022-04-130.2.1.0BenGamari
ghc-events2760.09Library and tool for parsing .eventlog files from GHC (bsd3, debug, development, ghc, library, profiling, program, trace)2025-12-230.21.0.0DuncanCoutts, MikolajKonarski, MitsutoshiAoe, SimonMarlow, teo
ghc-events-analyze532.01Analyze and visualize event logs (bsd3, development, profiling, program, trace)2025-07-190.2.9BenGamari, EdskoDeVries
ghc-events-parallel300.01Library and tool for parsing .eventlog files from parallel GHC (bsd3, debug, development, eden, ghc, library, profiling, program, trace)2014-07-180.5.0.1MischaDieterle, JostBerthold, horstmeyer
ghc-gc-tune200.01Graph performance of Haskell programs with different GC flags (bsd3, development, program)2020-07-140.3.2DonaldStewart, ArtemPelenitsyn
ghc-imported-from670.01Find the Haddock documentation for a symbol. (bsd3, development, library, program)2016-06-010.3.0.6CarloHamalainen
ghc-lib-parser-ex2640.05Programming with GHC parse trees (bsd3, development, library, program)2025-12-209.14.2.0NeilMitchell, shayne_fletcher
ghc-make250.01Accelerated version of ghc --make (bsd3, development, program)2017-11-090.3.3NeilMitchell
ghc-man-completion60.01Generate a bash completion from the GHC manpage (bsd3, development, ghc, program, system, tools)2012-06-160.0.0.3JoeQuinn
ghc-mod (deprecated)4132.755Happy Haskell Hacking (agpl, deprecated, development, ghc, library, program)2017-06-115.8.0.0KazuYamamoto, DanielG
ghc-options130.01Utilities for extracting GHC options needed to compile a given Haskell target. (language, library, mit, program)2015-12-160.2.0.0ranjitjhala
ghc-parmake400.01A parallel wrapper for 'ghc --make'. (bsd3, development, library, program)2015-12-170.1.9MikhailGlushenkov
ghc-pkg-autofix150.01Simple utility to fix BROKEN package dependencies for cabal-install. (bsd3, development, program)2012-02-180.2.0.1HiromiIshii
ghc-prof-aeson-flamegraph80.01Turn GHC `-pj` profiling output into FlameGraph format. (bsd3, profiling, program)2018-03-020.1.0.0MateuszKowalczyk
ghc-prof-flamegraph280.01Generates flamegraphs from GHC .prof files. (mit, program, testing)2021-08-170.2.0.1FrancescoMazzoli
ghc-session100.00Simplified GHC API (language, library, mit, program)2016-02-180.1.2.1danilo2, PiotrMlodawski, iamrecursion
ghc-stack-profiler-speedscope160.00Export a ghc-stack-profiler call-stack profile from an eventlog to speedscope (benchmarking, bsd3, development, library, profiling, program)2026-09-150.5.0.0wenkokke, fendor
ghc-tags400.00Utility for generating ctags and etags with GHC API. (development, mpl, program)2026-10-111.12arybczak
ghc-usage90.01Print minimal export lists (bsd3, development, library, program)2017-03-110.1.0.1EdwardYang
ghc-wasm-bindgen70.00JavaScript/TypeScript bindings for GHC's WASM backend (development, javascript, library, mit, program, web, webassembly)2026-11-100.3.0.0joaquinrossi
ghci-dap580.02ghci-dap is a GHCi having DAP interface. (bsd3, development, library, program)2026-05-010.0.27.0phoityne_hs
ghci-haskeline80.01An implementation of ghci using the Haskeline line-input library. (bsd3, compilers-interpreters, program)2010-04-010.2JudahJacobson
ghci-ng260.01Next generation GHCi (bsd3, development, program)2015-11-1610.0.0HerbertValerioRiedel
ghci4luatex140.00A GHCi session in LaTeX (bsd3, latex, library, program)2026-05-210.1.4AliceRixte
ghcid1972.57GHCi based bare bones IDE (bsd3, development, library, program)2026-08-191.0.0NeilMitchell, chrismwendt
ghcide-bench310.00An LSP client for running performance experiments on HLS (apache, development, library, program)2024-05-082.8.0.0hls_team
ghcitui130.00A Terminal User Interface (TUI) for GHCi (bsd3, debug, library, program)2025-06-260.4.1.1CrystalJRAW
ghcjs-dom-hello270.01GHCJS DOM Hello World, an example package (library, mit, program, web)2026-11-116.0.0.2HamishMackenzie
ghclive70.01Interactive Haskell interpreter in a browser. (application, bsd3, compilers-interpreters, library, program, web)2012-08-200.1.0.2ShaeErisson
ghcprofview100.00GHC .prof files viewer (bsd3, development, program)2022-06-010.1.0.2IlyaPortnov
ghczdecode72.01Decode Z-encoded strings from GHC (bsd3, development, program)2013-02-050.1.0.1EyalLotem
ghostscript-parallel90.00Let Ghostscript render pages in parallel (bsd3, graphics, program)2024-01-070.0.1HenningThielemann
ght120.01Trivial routines for inspecting git repositories (development, library, program)2011-11-140.4.0.1ConradParker
giak90.01Fuzzy finder for cabal executables (development, mit, program)2016-07-120.1.0.1nmattia
gibberish30.00Generate easy-to-remember, hard-to-guess passwords (cryptography, library, mit, program)2024-03-263.0.0.0sgillespie
gibbon60.00A compiler for operating on serialized trees. (bsd3, compiler, program)2021-09-060.1.1ckoparkar, ArtemPelenitsyn, vsinghal
ginger2120.00Jinja templates for Haskell (language, library, mit, program, templates)2025-06-052.2.0.0TobiasDammers
ginsu (deprecated)180.01Ginsu Gale Client (console, deprecated, mit, network, program)2016-08-120.8.2.2DylanSimon
gipeda540.01Git Performance Dashboard (development, mit, program)2017-04-160.3.3.2JoachimBreitner
gist70.01A reliable command-line client for gist.github.com (gpl, program, web)2012-04-220.1SimonMichael
git-all220.01Determine which Git repositories need actions to be taken (bsd3, development, program)2025-11-201.8.1JohnWiegley
git-annex20562.01manage files with git, without checking their contents into git (agpl, program, utility)2026-10-2610.20261026JoeyHess
git-brunch832.00git checkout command-line tool (bsd3, git, program)2026-02-281.8.0andys8
git-checklist60.01Maintain per-branch checklists in Git (desktop, development, program)2014-01-061.0.0.0dougalstanton
git-cuk52.00Haskell Git Helper Tool (cli-tool, git, library, mpl, program)2020-07-170.0.1shitiomatic
git-fmt560.01Custom git command for formatting code. (bsd3, development, program)2015-12-100.4.1.0hjwylde
git-freq100.01A Git subcommand to show total addition, deletion per file (bsd3, program, unclassified)2015-10-170.0.3DaisukeFujimura
git-gpush220.01More intelligent push-to-GitHub utility. (bsd3, development, program)2014-09-233.1.0.1JohnWiegley
git-jump140.01Move a git branch (bsd3, development, program)2015-11-220.1.0.3EyalLotem
git-mediate582.01Tool to help resolving git conflicts (development, gpl, program)2026-08-191.2.0EyalLotem, YairChuchem
git-monitor570.01Passively snapshots working tree changes efficiently. (bsd3, development, program)2025-12-123.2.2JohnWiegley
git-phoenix110.00Recover Git repositories from disk recovery tool output (photorec) (bsd3, library, program, system)2025-07-150.0.2DaniilIaitskov
git-remote-ipfs70.00Git remote helper to store git objects on IPFS (bsd3, library, network, program)2019-05-230.1.0.0jkarni
git-repair641.751repairs a damaged git repository (agpl, program, utility)2023-08-141.20230814JoeyHess
git-sanity130.01A sanity checker for your git history. (apache, development, library, program)2014-12-230.1.0.0aloiscochard
git-vogue290.01A framework for pre-commit checks. (bsd3, development, library, program)2018-05-120.3.0.2ChristianMarie, oswynb
gitHUD (deprecated in favor of githud)230.00More efficient replacement to the great git-radar (bsd3, deprecated, development, library, program)2017-03-311.3.7gbataille
gitcache100.01Simple git utility to use and manage clone cache (bsd3, program, tools)2016-10-290.3VincentHanquez
gitdo60.01Create Github issues out of TODO comments in code (mit, program, unclassified)2015-02-190.1.0.0MatthewHall
github-backup970.01backs up everything github knows about a repository, to the repository (gpl, program, utility)2020-07-221.20200721JoeyHess
github-release1840.00Upload files to GitHub releases. (library, mit, program, utility)2026-05-222.0.0.19fozworth
github-tools90.01Various Github helper utilities. (development, gpl, library, program)2023-12-200.1.2iphydf
githud330.00Heads up, and you see your GIT context (bsd3, development, library, program)2022-10-233.3.0gbataille
gitignore70.01Apply GitHub .gitignore templates to already existing repositories. (bsd3, development, program)2016-03-031.1RickyElrod
gitit6602.253Wiki using happstack, git or darcs, and pandoc. (library, network, program)2026-11-070.16.1JohnMacFarlane
givegif50.00CLI Giphy search tool with previews in iTerm 2 (bsd3, console, library, program)2016-04-091.0.0.0passy
glambda102.00A simply typed lambda calculus interpreter, written with GADTs (bsd3, compilers-interpreters, library, program)2017-11-271.0.2RichardEisenberg
glapp (deprecated)70.01An OpenGL micro framework. (deprecated, gpl, graphics, library, program)2014-01-080.1.0.1SchellScivally
glazier-react-examples (deprecated)100.01Examples of using glazier-react (bsd3, deprecated, gui, program, web)2017-04-070.6.0.0louispan
glean230.00A system for collecting, deriving and working with facts about source code. (bsd3, library, program, unclassified)2026-02-130.2.0.1SimonMarlow
glean-hs60.00Docker-free Haskell code indexing via Rust-native Glean substrate (development, language, library, mit, program)2026-07-270.1.0seido
glean-lsp60.00Generic Glean-based LSP Server (bsd3, program, unclassified)2026-02-120.1.0.0SimonMarlow
gli40.00Tiny cli to fetch PR info from gitlab (bsd3, cli, library, program)2017-01-020.0.1.1goromlagche
glintcollider70.01A simple ray tracer in an early stage of development. (bsd3, graphics, program)2011-05-030.0.2ColinHill
glirc2652.00Console IRC client (library, network, program)2024-08-132.41EricMertens
glob-imports200.00Import modules for metaprogramming (bsd3, library, metaprogramming, program)2026-02-020.0.6.0parsonsmatt
glome-hs240.01ray tracer (graphics, library, program)2010-06-190.61DonaldStewart, JimSnow
gloss-examples2180.01Examples using the gloss library (graphics, mit, program)2022-03-201.13.0.4BenLippmeier, ScottWalck, TrevorMcDonell
gloss-export250.00Export Gloss pictures to png, bmp, tga, tiff, gif and juicy-pixels-image (graphics, library, mit, program)2021-07-250.1.0.4timoa
gloss-juicy142.03Load any image supported by Juicy.Pixels in your gloss application (bsd3, graphics, library, program)2018-08-290.2.3AlpMestanogullari, HugoPacheco
gloss-relative120.00Painless relative-sized pictures in Gloss. (bsd3, graphics, library, program)2025-12-270.1.3.0HugoPacheco
glpk-hs690.06Comprehensive GLPK linear programming bindings (bsd3, library, math, program)2021-01-290.8JeanPhilippeBernardy, LouisWasserman
glsl82.00Parser and optimizer for a small subset of GLSL (bsd3, graphics, library, program)2021-04-200.0.1.0pippijn
gltf-loader210.00High level GlTF loader (graphics, library, mit, program)2022-11-280.3.0.0sgillespie
glue (deprecated in favor of glue-common, glue-core, glue-ekg, glue-example)230.00Make better services. (bsd3, deprecated, library, network, program)2015-08-240.2.0seanparsons
glue-example640.01Make better services and clients. (bsd3, network, program)2026-10-180.7.0.1seanparsons
gmndl100.01Mandelbrot Set explorer using GTK (gpl, graphics, program)2017-08-040.4.0.4ClaudeHeilandAllen
gnome-desktop20.01Randomly set a picture as the GNOME desktop background (program, utility)2009-06-221.0.0.0ColinAdams
gnss-converters1630.00GNSS Converters. (bsd3, library, network, program)2018-07-100.3.52peddie, markfine, mookerji
goal-simulation110.00Mealy based simulation tools (bsd3, library, math, program)2015-12-220.1alex404
goatee-gtk310.01A monadic take on a 2,500-year-old board game - GTK+ UI. (agpl, game, library, program)2021-01-250.4.0khumba
gochan60.00Go-style channels (concurrency, library, mit, program)2017-03-210.0.2cstrahan
godot-megaparsec110.00Megaparsec parser for Godot `tscn` and `gdextension` files. (bsd3, library, program)2022-06-180.2.5.1whartnett
goldplate230.00A lightweight golden test runner (apache, language, library, program)2024-09-300.2.2.1AndreasAbel, JasperVanDerJeugt
google-html5-slide90.01Google HTML5 Slide generator (bsd3, program, web)2012-07-182011.0HideyukiTanaka
gopher-proxy392.01proxy gopher over http (gpl, network, program)2021-10-250.1.1.3sternenseemann
gopherbot40.01Spidering robot to download files from Gopherspace (network, program)2007-03-070.1.0JohnGoerzen
gore-and-ash-demo90.01Demonstration game for Gore&Ash game engine (bsd3, game, program)2016-11-191.2.0.0NCrashed
gotta-go-fast210.01A command line utility for practicing typing (application, bsd3, program)2022-05-200.3.0.8callum_oakley
gotyno-hs250.00A type definition compiler supporting multiple output languages. (bsd2, compiler, library, program)2021-08-051.1.0gonz
gpah50.01Generic Programming Use in Hackage (bsd3, generics, program)2013-12-050.0.2JohanJeuring
gpio80.00Haskell GPIO interface, designed specifically for the RaspberryPi. (bsd3, hardware, library, program)2017-11-060.1.0.3tgolson
gpmf140.00 (bsd3, library, program, unclassified)2023-07-070.2.1.0dustin
gps2htmlReport230.01GPS to HTML Summary Report (bsd3, data, library, program)2012-01-290.3.1RobStewart
grafdhall20.00Configure grafana dashboards from Dhall expression (apache, program, system)2022-05-190.1.0.0TristanCacqueray
grammatical-parsers1160.03parsers that combine into grammars (bsd3, library, parsing, program, text)2025-04-200.7.2.1MarioBlazevic
granite1220.02Easy terminal plotting. (graphics, library, mit, program)2026-07-010.7.4.0mchav
graph-generators142.01Functions for generating structured or random FGL graphs (algorithms, apache, graphs, library, program)2018-06-080.1.4.0ulikoehler
graph-rewriting-cl (deprecated in favor of graph-rewriting-trs)40.01Interactive graph rewriting system implementing various well-known combinators (application, bsd3, deprecated, graphs, program)2011-02-070.2.2JanRochel
graph-rewriting-lambdascope560.01Lambdascope, an optimal evaluator of the lambda calculus (application, bsd3, compilers-interpreters, program)2024-03-180.5.11JanRochel
graph-rewriting-ski400.01Two interactive evalutors of the SKI combinator calculus (application, bsd3, compilers-interpreters, program)2024-03-180.6.8JanRochel
graph-rewriting-trs350.01Interactive evaluation of first-order applicative term rewrite systems (application, bsd3, compilers-interpreters, program)2024-03-180.1.10JanRochel
graph-rewriting-ww430.01Interactive evaluator of the lambda-calculus with explicit sharing (application, bsd3, compilers-interpreters, program)2024-03-180.3.8JanRochel
graph-trace-dot180.00Converts a graph-trace log into a DOT file for use with Graphviz (debug, development, graph, library, mit, plugin, program, tooling)2023-03-170.1.1.3aaronallen8455
graph-trace-viz140.00Converts a graph-trace log into an HTML document (debug, development, graph, mit, plugin, program, tooling)2023-03-170.1.1.1aaronallen8455
graphicstools200.01Tools for creating graphical UIs, based on wxHaskell. (bsd3, graphics, library, program)2012-03-130.2.2VilleTirronen
graphmod562.251Present the module dependencies of a program as a "dot" graph. (bsd3, development, library, program)2022-12-221.4.5.1IavorDiatchki
graphmod-plugin40.00A reimplementation of graphmod as a source plugin (bsd3, library, program, unclassified)2018-09-290.1.0.0mpickering
graphql-api232.01GraphQL API (library, program, web)2019-10-150.4.0teh, jml
graphql-client260.00A client for Haskell programs to query a GraphQL API (bsd3, graphql, library, program)2024-01-091.2.4brandonchinn178
graphtype120.01A simple tool to illustrate dependencies between Haskell types (bsd3, program, text)2010-09-130.2.0DmitryAstapov, MaxDesyatov
graphwiz180.00Monadic DOT graph builder DSL (bsd3, data, library, program, text)2026-03-173.0.0nicuveo
grasp60.00GRASP implementation for the AMMM project. (bsd3, development, library, program)2016-01-180.1.0.0janmasrovira
greencard170.03GreenCard, a foreign function pre-processor for Haskell. (bsd3, foreign, library, program)2014-05-033.0.4.2GwernBranwen, SigbjornFinne
greenclip370.01Simple clipboard manager to be integrated with rofi (bsd3, linux-desktop, program)2025-03-214.3.1erebe
gremlin-haskell120.00Graph database client for TinkerPop3 Gremlin Server (bsd3, database, library, program)2015-12-300.1.0.2nakaji_dayo
grfn70.00Uniformly-random pre-factored numbers (Kalai) (algorithm, bsd3, library, numbers, program, random)2024-06-221.0.0.1ThreeEyedGod
grid-proto200.00Game engine for Prototyping on a Grid (bsd3, game, library, program)2022-03-270.2.0.1jxv
grm110.02grm grammar converter (bsd3, development, library, program)2012-03-300.1.1BrettLetner
groom252.014Pretty printing for well-behaved Show instances. (bsd3, library, program, text)2017-04-190.1.2.1EdwardYang
groot50.00Command line utility to manage AWS ECS resources (apache, aws, cloud, library, program)2018-04-300.0.1.0alonsodomin
gross70.00A spoof on gloss for terminal animation (graphics, library, mit, program)2017-01-160.1.0.0sgschlesinger
groundhog-inspector310.01Type-safe datatype-database mapping library. (bsd3, database, library, program)2019-12-160.11.0BorisLykah
group-by-date360.01Shell command for grouping files by dates into folders (bsd3, console, program)2023-01-150.1.0.5HenningThielemann
gruff410.01fractal explorer GUI using the ruff library (gpl, graphics, library, program)2016-11-070.4ClaudeHeilandAllen
gruff-examples160.01Mandelbrot Set examples using ruff and gruff (gpl, graphics, program)2016-11-070.4ClaudeHeilandAllen
gscholar-rss390.00scrapes google scholar, provides RSS feed (gpl, program, utils, web)2023-11-100.3.0.4fffaaa
gsmenu150.01A visual generic menu (bsd3, program, tools)2022-05-243.1TroelsHenriksen
gt-tools420.01Console and GUI interface for Google Translate service (program, tools)2015-01-040.2.1MikhailPobolovets, SergeiTrofimovich
gtk-sni-tray1382.01A standalone StatusNotifierItem/AppIndicator tray (bsd3, library, program, system)2026-07-150.2.1.4rvl, eyevanmalicesun
gtk2hs-buildtools1050.01Tools to build the Gtk2Hs suite of User Interface libraries. (development, gpl, library, program)2025-03-200.13.12.0AndyStewart, AxelSimon, DanielWagner, DuncanCoutts, HamishMackenzie
gtk2hs-hello80.01Gtk2Hs Hello World, an example package (graphics, mit, program)2014-09-271.1.0.0HamishMackenzie
gtkrsync40.01Gnome rsync progress display (network, program)2010-02-191.0.4JohnGoerzen
gtvm-hs20.00Various tools for reversing and using assets from Golden Time: Vivid Memories. (data, library, mit, program)2024-10-031.0.0raehik
guardian40.00The border guardian for your package dependencies (bsd3, development, library, program)2024-02-220.5.0.0HiromiIshii
gulcii70.01graphical untyped lambda calculus interactive interpreter (compilers-interpreters, gpl, program)2017-10-230.3ClaudeHeilandAllen
gvti160.00GraphViz Tabular Interface (graphics, library, mit, program)2023-05-120.4.1.0OleksandrZhabenko
gw30.00ghcWithPackages cmdline util (bsd3, program, utility)2019-05-120.1chessai
gyah-bin120.01A binary version of GiveYouAHead (giveyouahead, mit, program)2015-06-250.2.2.3Qinka
gym-hs40.00Haskell bindings for OpenAI Gymnasium (ai, library, machine-learning, mit, program, reinforcement-learning)2025-07-250.1.0.1benthamite
gym-http-api151.50REST client to the gym-http-api project (learning-environments, library, mit, program, web)2018-06-120.1.0.1stites
h-booru70.01Haskell library for retrieving data from various booru image sites (gpl, library, program, web)2014-11-180.3.0.0MateuszKowalczyk
h-reversi80.01Reversi game in haskell/blank-canvas (game, library, mit, program)2016-12-150.1.0.3apoorvingle
h2048250.01An Implementation of Game 2048 (game, library, mit, program)2019-10-300.4.0.0javran
h3spec110.00QUIC (bsd3, program, web)2026-11-060.1.15KazuYamamoto
hCM40.00Conceptual modelling support for Haskell (data-structures, development, library, mit, model, program)2017-05-080.1.0.0MarekSuchanek
hLLVM50.01A library for analyzing and transforming LLVM (3.5) assembly codes (bsd3, compilers-interpreters, library, program)2015-04-150.5.0.1NingWang
hMPC102.00Multiparty Computation in Haskell (bsd3, cryptography, library, program)2024-07-190.1.0.2nickvgils
hOff-display30.00The tool to transform the OFF to other image format. (gpl, graphics, library, program)2017-12-150.1.0.0qinka
hPDB-examples550.01Examples for hPDB library (bioinformatics-, bsd3, program)2018-07-141.5.0.0MichalGajda
hS3510.03Interface to Amazon's Simple Storage Service (S3) (bsd3, library, network, program, web)2014-09-280.5.9GergelyRisko, GregHeartsfield
hVOIDP80.01Optimal variable selection in chain graphical model. (ai, library, program)2011-08-261.0.2QiQi
hXmixer170.01A Gtk mixer GUI application for FreeBSD (bsd3, program, sound)2015-05-120.3.0.0colinrmitchell
haal150.01A Haskell library for Active Automata Learning. (bsd3, library, model-learning, program)2026-10-100.7.0.0steve_anunknown
habit80.00Haskell message bot framework (bsd3, library, program, web)2017-01-250.2.2.0akru
hablo70.00A minimalist static blog generator (bsd3, library, program, web)2021-01-201.1.0.1tissevert
hablog210.00A blog system (library, mit, program, web)2021-01-270.8.0gilmi
hackage-cli320.00CLI tool for Hackage (development, gpl, library, program)2026-08-230.3.0.0AndreasAbel, HerbertValerioRiedel
hackage-diff102.01Compare the public API of different versions of a Hackage library (distribution, mit, program)2016-01-160.1.0.1blitzcode
hackage-mirror102.01Simple mirroring utility for Hackage (distribution, library, mit, program)2015-11-290.1.1.1MichaelSnoyman, dysinger
hackage-plot70.01Generate cumulative graphs of hackage uploads (bsd3, distribution, program)2013-01-120.2.1DonaldStewart
hackage-processing70.01Process 00-index.tar.gz from Hackage (bsd3, distribution, program)2016-05-030.0.0.1HenningThielemann
hackage-proxy (deprecated)280.01Provide a proxy for Hackage which modifies responses in some way. (deprecated) (deprecated, development, mit, program)2014-03-200.3.0.1MichaelSnoyman
hackage-publish30.00No frills releasing to Hackage (mit, program, web)2025-09-250.1.0.0sridca
hackage-repo-tool242.01Manage secure file-based package repositories (bsd3, distribution, program)2025-09-080.1.1.5AndreasAbel, DuncanCoutts, EdskoDeVries, HerbertValerioRiedel, MikolajKonarski
hackage-revdeps300.01List Hackage reverse dependencies (bsd3, development, library, program)2026-08-130.4.1Bodigrim
hackage-sparks160.01Generate sparkline graphs of hackage statistics (bsd3, distribution, program)2011-06-180.5.1DonaldStewart
hackage-whatsnew300.01Check for differences between working directory and hackage (bsd3, distribution, program)2018-11-140.1.3JeremyShaw
hackage2hwn270.01Convert Hackage RSS feeds to wiki format for publishing on Haskell.org (bsd3, distribution, program)2009-02-220.5.1DonaldStewart
hackage2twitter40.01Send new Hackage releases to Twitter (bsd3, distribution, program, web)2009-05-210.2.1TomLokhorst
hackager250.01Hackage testing tool (bsd3, compiler, ghc, program, testing)2015-11-201.3.0.1DavidTerei
hackernews940.01API for Hacker News (library, mit, program, web)2017-12-271.4.0.0DavidJohnson
hackertyper62.01"Hack" like a programmer in movies and games! (game, mit, program)2014-10-150.1.0.1fgaz
hackmanager90.00Generate useful files for Haskell projects (bsd3, development, library, program)2015-08-230.1.0.0AlexanderThiemann
hackport3540.01Hackage and Portage integration tool (distribution, gpl, library, program)2025-05-040.9.1.0LennartKolmodin, solpeth, hololeap
haddock3162.2510A documentation-generation tool for Haskell libraries (bsd3, documentation, program)2023-09-222.29.1BenGamari, DavidWaern, HerbertValerioRiedel, MateuszKowalczyk, SimonHengel, SimonMarlow, alexbiehl, Helkafen, harpocrates, wz1000, hecate
haddock-leksah (deprecated in favor of haddock)70.02A documentation-generation tool for Haskell libraries (bsd3, deprecated, development, program)2010-03-072.6.0JuergenNicklischFranken
haddocset300.01Generate docset of Dash by Haddock haskell documentation tool (bsd3, distribution, program)2017-08-140.4.3HirotomoMoriwaki
hadoop-tools310.01Fast command line tools for working with Hadoop. (apache, data, program)2016-02-251.0.1ConradParker, JacobStanley
haeredes290.01Confirm delegation of NS and MX records (agpl, dns, program, utils)2024-05-151.8.7MichaelOrlitzky
haggis130.01A static site generator with blogging/comments support (library, mit, program, web)2015-12-060.1.3.0TychoAndersen
haha120.02A simple library for creating animated ascii art on ANSI terminals. (bsd3, graphics, library, program)2012-06-050.3.1.1ErikHesselink, SebastiaanVisser
hahp80.00Analytic Hierarchy Process (agpl, library, math, program)2016-02-220.1.3taeradan, jpierre03
hail200.01A service for pull-based continuous deployment based on hydra. (apache, program, system)2017-08-230.2.0.0shlevy
hailgun-send60.01A program to send emails throught the Mailgun api. (mit, network, program)2014-11-170.1.1.1RobertMassaioli
hails430.01Multi-app web platform framework (library, mit, program, web)2015-04-210.11.2.1AmitLevy, DavidMazieres, DeianStefan
hails-bin (deprecated in favor of hails)170.01Dynamic launcher of Hails applications (deprecated, gpl, program, web)2012-04-200.1.1.1DeianStefan
hairy (deprecated)140.01A JSON REST API (deprecated, library, mit, program, web)2014-10-160.1.3taylorfausak, fozworth
hakaru160.02A probabilistic programming language (bsd3, language, library, program)2020-11-020.7.0pravnar, z
hake970.01make tool. ruby : rake = haskell : hake (development, library, program)2013-12-231.3.8.1YoshikuniJujo
hakka50.00Minimal akka-inspired actor library (concurrency, library, mit, program)2017-06-130.2.0martinrign
hakyll9932.7531A static website compiler library (bsd3, library, program, web)2026-04-304.17.0.0JasperVanDerJeugt, AlexanderBatischev, LaurentRDC
hakyll-contrib190.01Extra modules for the hakyll website compiler (bsd3, library, program, web)2012-07-080.1.0.1JasperVanDerJeugt
hakyll-contrib-elm50.00Compile Elm code for inclusion in Hakyll static site. (bsd3, library, program, web)2016-05-190.1.0.1narrative
hakyll-contrib-i18n50.00A Hakyll library for internationalization. (hakyll, i18n, library, program, web)2020-11-250.1.1.0pcoves
hakyll-convert300.01Convert from other blog engines to Hakyll. (bsd3, library, program, tools)2024-06-010.3.0.5EricKow, AlexanderBatischev
hakyll-dhall420.00Dhall compiler for Hakyll (bsd3, library, program, web)2023-12-270.2.5.0jle
hakyll-favicon60.00 (bsd3, library, program, web)2017-04-230.1.0elaye
hakyllbars190.00A Hakyll compiler for Handlebars-like templates (bsd3, library, program, web)2023-11-161.0.1.0keywordsalad
halberd420.01A tool to generate missing import statements for Haskell modules. (bsd3, development, library, program)2014-09-170.1.2.9ErikHesselink
halfs60.01The HAskelL File System ("halfs" -- intended for use on the HaLVM) (bsd3, library, program, system)2012-10-102.0GwernBranwen, JoelStanley
halide-haskell80.02Haskell bindings to Halide (bsd3, language, library, program)2023-05-220.0.2.0tom_westerhout
halive240.00A live recompiler (bsd2, development, library, program)2021-03-260.1.8lukexi
halma-gui50.01GTK application for playing Halma (game, mit, program)2019-01-030.1.1.1TimBaumann
halma-telegram-bot30.01Telegram bot for playing Halma (game, mit, program)2017-04-030.1.0.0TimBaumann
haltavista90.01looks for functions given a set of example input/outputs (development, gpl, program)2010-09-190.1.0.1PaulBrauner
halvm-web50.01A simple, static HaLVM web server (bsd3, program, web)2016-10-130.3.0.0AdamWick
ham40.00 (library, program, unclassified)2020-10-020.1.0.0ChristianGosch
hamilton170.00Physics on generalized coordinate systems using Hamiltonian Mechanics and AD (bsd3, library, physics, program)2018-03-210.1.0.3jle
hampp90.01Haskell macro preprocessor (preprocessor, program, public-domain)2012-02-120.2.1AaronBlack
hamsql72.00Interpreter for SQL-structure definitions in YAML (YamSql) (database, gpl, library, program)2016-10-270.9.0.0quabla
hamtsolo150.01Intel AMT serial-over-lan (SOL) client (bsd3, network, program)2022-01-201.0.4jgalowicz
hamusic130.01Library to handle abstract music (bsd3, library, music, program)2009-08-040.1.2.1SamuelSilva
hanalyze-cli40.00hanalyze command-line interface for the hanalyze toolkit (bsd3, machine-learning, math, numeric, program, statistics)2026-08-130.2.0.1frenzieddoll
handa-gdata530.04Library and command-line utility for accessing Google services and APIs. (library, mit, network, program)2015-04-260.7.0.3BrianBush, RyanNewton
handa-geodata100.01Geographic and Geometric Data (data, geography, geometry, library, mit, program)2014-04-270.2.0.1BrianBush
handwriting140.00API Client for the handwriting.io API. (bsd3, library, network, program)2016-03-110.1.0.3IsmailMustafa
hangman200.01Hangman implementation in Haskell written in two hours. (game, mit, program)2013-04-281.0.3HokShunPoon
hannahci70.01Simple Continuous Integration/Deployment System (agpl, development, program)2015-02-010.1.4.2Elzair
hanspell192.00Korean spell checker (korean, language, library, mit, program, spellchecker)2021-09-190.2.6.19beach
hapistrano2562.251A deployment library for Haskell applications (library, mit, program, system)2023-02-160.4.8.0jsl, stackbuilders, sestrella, camm
happraise60.01A small program for counting the comments in haskell source (bsd3, development, program)2008-05-020.1AllanClark
happs-tutorial790.01A Happstack Tutorial that is its own web 2.0-type demo. (bsd3, program, web)2010-05-110.9.5CreightonHogg, ThomasHartman
happy3641.251Happy is a parser generator for Haskell (bsd2, development, program)2026-04-06AndreasAbel, IavorDiatchki, JohnEricson, SimonMarlow, int_index, sgraf812
harchive60.01Networked content addressed backup and restore software. (program, system)2007-03-100.2DavidBrown
harfbuzz-pure410.02Pure-functional Harfbuzz language bindings (library, mit, program, text)2023-09-251.0.4.0alcinnz
hark50.01A Gentoo package query tool. (program, system)2009-08-290.2MarkusDittrich
harmony122.00A web service specification compiler that generates implementation and tests. (development, gpl, library, program)2015-08-190.1.1.0SantiMunin
haroonga-httpd70.01Yet another Groonga http server. (lgpl, program, web)2015-04-030.1.1.0cosmo0920
harpie170.04Haskell array programming. (bsd3, library, math, program)2026-01-100.2.0.0tonyday567
hasbolt-extras900.01Extras for hasbolt library (bsd3, database, library, program)2023-09-280.0.3.1ozzzzz, maksbotan
hascal290.01tiny calculator library and command-line program (console, library, math, parsing, program, tools, utility, utils)2017-02-273.0.1DagOdenhall, MekeorMelire
hascar370.00Decompress SAPCAR archives (codec, gpl, library, program)2018-02-010.2.2.1hc
hascard550.00A TUI for reviewing notes using 'flashcards' written with markdown-like syntax. (application, bsd3, library, program)2024-10-270.6.0.2Yvee1
hascat50.01Hascat Web Server (network, program)2011-06-280.2FlorianMicheler
hascat-setup40.01Hascat Installation helper (library, network, program)2011-06-280.2FlorianMicheler
hash-addressed-cli210.00Hash-addressed file storage app (apache, filesystem, hash, library, program)2023-02-082.1.0.1chris_martin, Monoid_Mary
hasherize70.00Hash digests for files and directories (apache, filesystem, hash, library, program)2023-07-050.0.0.0chris_martin
hashing330.01A pure haskell library implements several hash algorithms. (cryptography, library, mit, program)2022-12-040.1.1.0wangbj
hashrename50.01Rename every file in a directory with his SHA1 hash. (gpl, program, utility)2018-01-300.1.1.0rnhmjoj
hashtable-benchmark70.01Benchmark of hash table implementations (benchmarking, bsd3, performance, program)2017-01-180.1.1HongchangWu
hask-home170.01Generate homepages for cabal packages (bsd3, program, unclassified)2009-03-182009.3.18BjornBringert, IsaacJones, SimonHengel
haskades100.01Utility to generate bindings for BlackBerry Cascades (program, utility)2014-10-020.2.1StephenWeber
haskakafka200.01Kafka bindings for Haskell (library, mit, network, program)2016-12-041.2.0tdimson
haskanoid592.251A breakout game written in Yampa using SDL (frp, game, program, reactivity)2023-04-080.1.6IvanPerez, keera_studios_ci
haskarrow60.01A dialect of haskell with order of execution based on dependency resolution (gpl, language, program)2012-08-040.0TimothyHobbs
haskdeep120.01Computes and audits file hashes. (bsd3, console, cryptography, program, system)2015-06-010.2.0.1MauroTaraborelli
haskdogs362.01Generate tags file for Haskell project and its nearest deps (bsd3, development, program)2019-01-250.6.0SergeyMironov
haskeem420.01A small scheme interpreter (compilers-interpreters, program)2010-01-190.7.16UweHollerbach
haskell-abci50.00Haskell Application BlockChain Interface (ABCI) Server Library (bsd3, library, program, web)2017-08-100.1.0.0cwgoes
haskell-awk290.01Transform text from the command-line using Haskell expressions. (apache, console, library, program)2021-05-081.2.0.1JensPetersen, MarioPastorelli, gelisam
haskell-bee-pgmq50.00PostgreSQL/PGMQ broker implementation for haskell-bee (agpl, concurrency, library, program)2025-06-160.1.0.0cgenie
haskell-bitmex-client50.00Complete BitMEX Client (bsd3, library, program, web)2018-10-120.1.0.1Lucsanszky
haskell-brainfuck50.01BrainFuck interpreter (language, library, mit, program)2014-08-080.1.0.1paraseba
haskell-ci (deprecated)732.00Cabal package script generator for Travis-CI (deprecated, development, gpl, library, program)2024-02-250.18.1HerbertValerioRiedel, phadej
haskell-cnc150.01Library for parallel programming in the Intel Concurrent Collections paradigm. (bsd3, control, library, parallelism, program)2011-08-120.1.3.200RyanNewton
haskell-compression120.01compress files (gpl, library, program, system)2017-10-260.3AlanHawkins
haskell-debugger590.00A step-through debugger for GHC Haskell (bsd3, development, library, program)2026-09-170.14.0.0romes
haskell-docs1120.01A program to find and display the docs and type of a name (bsd3, development, library, program)2019-05-154.2.9AnthonyCowley, ChrisDone, IvanMiljenovic
haskell-docs-cli100.00Search Hoogle and navigate Hackage from the command line. (bsd3, development, haskell, library, program)2022-11-201.0.0.0lazamar
haskell-formatter (deprecated in favor of hindent)270.01Haskell source code formatter (deprecated, development, library, mit, program)2020-11-072.0.3evolutics
haskell-fsrs120.00FSRS-7, the Free Spaced Repetition Scheduler (education, library, mit, program)2026-08-217.1.0FlavioCorpa
haskell-ftp40.01A Haskell ftp server with configurable backend. (bsd3, library, network, program)2012-10-070.1.0.1YiHuang
haskell-gettext162.03GetText runtime library implementation in pure Haskell (bsd3, library, program, text)2019-01-140.1.2.0IlyaPortnov
haskell-go-checkers52.01Go and Checkers game in Haskell (game, mit, program)2017-05-060.1.1.0prateekkumarweb
haskell-halogen-core30.00Haskell port of purescript-halogen library (apache, library, program, web)2025-05-300.9.0Swordlash
haskell-import-graph240.00create haskell import graph for graphviz (development, library, mit, program)2018-04-281.0.4ncaq
haskell-in-space80.01'Asteroids' arcade games. (bsd3, game, program)2008-06-220.1.1GwernBranwen
haskell-language-server2262.50LSP server for GHC (apache, development, library, program)2026-09-042.15.0.0AlanZimmerman, NeilMitchell, PepeIborra, mpickering, cocreature, Ailrun, luke_, berberman, jneira, hls_team
haskell-lsp-client (deprecated)82.00A haskell package to build your own Language Server client. (deprecated, development, gpl, language, library, program, protocol)2017-12-291.0.0.1
haskell-ml100.00Machine learning in Haskell (bsd3, library, machine-learning, program)2018-01-280.4.2DavidBanas
haskell-opentimestamps-client50.00Haskell implementation of a basic OpenTimestamps client (bitcoin, bsd3, cryptography, finance, library, network, program)2026-03-220.4.1.1photonsphere
haskell-overridez102.01Manage nix overrides for haskell packages (bsd3, distribution, nix, program)2018-07-260.10.3.0adetokunbo
haskell-pdf-presenter270.01Tool for presenting PDF-based presentations. (application, gpl, graphics, image-viewer, pdf, program)2014-01-200.2.5MichaelAdams
haskell-pgmq100.01Haskell interface for Tembo's PGMQ PostgreSQL extension (agpl, database, library, program)2025-06-160.1.0.0cgenie
haskell-platform-test50.01A test system for the Haskell Platform environment (bsd3, distribution, program)2010-07-172010.2.0.0DonaldStewart
haskell-player251.50A terminal music player based on afplay (bsd3, library, program, sound)2016-06-050.1.3.3potomak
haskell-say42.00Let the Haskell logo talk to your users! (bsd3, console, library, program, text, utils)2020-04-051.0.0.0DrewHaven
haskell-snake40.00Snake game implemetation in Haskell using SDL2 (games, gpl, library, program)2018-05-251.0.0cgenie
haskell-stack-trace-plugin170.00haskell-stack-trace-plugin (compiler-plugin, debug, development, library, mit, program)2021-05-250.1.3.0waddlaw
haskell-tools-cli980.00Command-line frontend for Haskell-tools Refact (bsd3, language, library, program)2019-01-091.1.1.0lazac
haskell-tools-daemon540.01Background process for Haskell-tools that editors can connect to. (bsd3, language, library, program)2019-01-091.1.1.0lazac
haskell-tools-debug700.00Debugging Tools for Haskell-tools (bsd3, language, library, program)2019-01-091.1.1.0lazac
haskell-tools-demo660.00A web-based demo for Haskell-tools Refactor. (bsd3, language, library, program)2019-01-091.1.1.0lazac
haskell-updater1182.01Rebuild Haskell dependencies in Gentoo (distribution, gpl, program)2025-03-071.5.0.0IvanMiljenovic, solpeth, hololeap
haskell-xmpp (deprecated)220.01Haskell XMPP (eXtensible Message Passing Protocol, a.k.a. Jabber) library (bsd3, deprecated, library, network, program)2022-05-242.0.4
haskelldb-dynamic100.01HaskellDB support for the dynamically loaded drivers. (bsd3, database, library, program)2012-10-121.0.0BjornBringert, JustinBailey, miscodes
haskelldb-flat60.01An experimental HaskellDB back-end in pure Haskell (no SQL) (bsd3, database, library, program)2012-10-121.0.1BjornBringert, JustinBailey, miscodes
haskelldb-hdbc-mysql120.01HaskellDB support for the HDBC MySQL driver. (bsd3, database, library, program)2011-05-090.1.1AndrewMiller
haskelldb-hdbc-odbc290.02HaskellDB support for the HDBC ODBC driver. (bsd3, database, library, program)2012-10-252.1.2BjornBringert, JustinBailey, miscodes
haskelldb-hdbc-postgresql330.01HaskellDB support for the HDBC PostgreSQL driver. (bsd3, database, library, program)2012-10-252.1.2BjornBringert, JustinBailey, miscodes
haskelldb-hdbc-sqlite3420.01HaskellDB support for the HDBC SQLite driver. (bsd3, database, library, program)2012-10-252.1.2BjornBringert, JustinBailey, miscodes
haskelldb-hsql-mysql150.01HaskellDB support for the HSQL MySQL driver. (bsd3, database, library, program)2012-10-121.0.0BjornBringert, JustinBailey, miscodes
haskelldb-hsql-odbc120.01HaskellDB support for the HSQL ODBC driver. (bsd3, database, library, program)2012-10-121.0.0BjornBringert, JustinBailey, miscodes
haskelldb-hsql-oracle50.01HaskellDB support for the HSQL Oracle driver. (bsd3, database, library, program)2012-10-121.0.0JustinBailey, miscodes
haskelldb-hsql-postgresql80.01HaskellDB support for the HSQL PostgreSQL driver. (bsd3, database, library, program)2012-10-121.0.0BjornBringert, JustinBailey, miscodes
haskelldb-hsql-sqlite170.01HaskellDB support for the HSQL SQLite driver. (bsd3, database, library, program)2012-10-121.0.0BjornBringert, JustinBailey, miscodes
haskelldb-hsql-sqlite3100.01HaskellDB support for the HSQL SQLite3 driver. (bsd3, database, library, program)2012-10-121.0.0BjornBringert, JustinBailey, miscodes
haskellscript310.01Command line tool for running Haskell scripts with a hashbang. (bsd3, development, program)2015-05-280.2.3seanparsons
haskelm160.01Elm to Haskell translation (bsd3, compiler, language, library, program)2014-03-250.1.12.0jeremondi
haskeme140.00Compiler from I- to S-Expressions for the Scheme Programming Language (bsd3, language, library, program)2019-07-180.1.0.4jumper149
haskintex730.02Haskell Evaluation inside of LaTeX code. (bsd3, latex, library, program)2025-02-210.8.0.3DanielDiaz
hasklepias (deprecated)510.00embedded DSL for defining epidemiologic cohorts (bsd3, data-science, deprecated, library, program)2021-09-080.20.0bradleysaul
haskoin-store7620.00Storage and index for Bitcoin and Bitcoin Cash (bitcoin, finance, library, mit, network, program)2026-11-101.9.0jprupp
haskoin-wallet200.01Lightweight CLI wallet for Bitcoin and Bitcoin Cash (bitcoin, finance, library, network, program, public-domain)2025-05-090.9.4jprupp
haskore-supercollider240.01Haskore back-end for SuperCollider (library, music, program, sound)2014-10-310.3HenningThielemann
haskseg130.00Simple unsupervised segmentation model (bsd3, library, nlp, program)2019-09-260.1.0.3TomLippincott
hasktags530.02Produces ctags "tags" and etags "TAGS" files for Haskell programs (bsd3, development, library, program)2023-08-100.73.0IanLynagh, MarcWeber, jhenahan
hasktorch-CudaHashMap20.00HaskTorch interface to the GPU-parallel hashmap in cuCollections (bsd3, data, library, program)2026-11-100.1.0.0SusumuKatayama
hasktorch-codegen60.00Code generation tools for Hasktorch (ai, bsd3, code-generation, ffi-tools, library, machine-learning, program, tensors)2018-11-010.0.1.1stites
hasktorch-signatures50.01Backpack signatures for Tensor operations (ai, bsd3, library, machine-learning, program, tensors)2018-11-010.0.1.0stites
haskus-system-build100.01Haskus system build tool (bsd3, program, system)2019-03-041.1SylvainHenry
haskyapi (deprecated)50.00HTTP server (deprecated, library, mit, program, web)2018-02-090.0.0.2okue
haslo170.01Loan calculator engine. (bsd3, finance, library, program)2012-09-270.1.3BartoszWojcik
hasloGUI30.01Loan calculator Gtk GUI. Based on haslo (Haskell Loan) library. (bsd3, financial, program)2012-08-220.1BartoszWojcik
hasmin362.01CSS Minifier (bsd3, library, program, text)2018-12-301.0.3contivero
hasql-check110.01Check hasql-th statements against a live PostgreSQL schema (bsd3, database, development, library, program)2026-11-030.5.2.0lorenzo
hasql-check-ghc100.00Check inferred hasql statements with what GHC knows of their types (bsd3, database, development, library, program)2026-11-030.5.2.0lorenzo
hasql-notifications890.05LISTEN/NOTIFY support for Hasql (bsd3, database, hasql, library, postgresql, program)2026-08-230.2.6.0diogob
hasql-queue250.00A PostgreSQL backed queue (bsd3, library, program, web)2020-07-061.2.0.2JonathanFischoff
hasql-streams-example50.00An example program that shows how to use Hasql streams with Rel8 (database, hasql, mit, postgresql, program, streaming)2022-02-050.1.0.0amarianiello
hasql-th-format40.00Format the SQL inside hasql-th quasiquotes (bsd3, database, development, program)2026-10-300.1.0.0lorenzo
hastache (deprecated in favor of mustache)1090.017Haskell implementation of Mustache templates (bsd3, deprecated, library, program, text)2014-12-230.6.1DaniilFrumin, SergeyLymar
haste80.01A universal pastebin tool, written in Haskell. (bsd3, program, web)2009-10-120.1.1DavidSiegel
haste-compiler1840.07Haskell To ECMAScript compiler (bsd3, compiler, javascript, program, web)2017-09-080.6.0.0AntonEkblad
hastily90.00A program to download subtitle files. (bsd3, cli, library, program)2015-10-140.1.0.6sras
hat1390.01The Haskell tracer, generating and viewing Haskell execution traces (development, library, program)2017-11-032.9.4OlafChitil
hatexmpp360.00XMPP client with 9P and (optionally) GTK interfaces (network, program)2020-06-130SergeyAlirzaev
hath502.01Manipulates network blocks in CIDR notation (agpl, program, utils)2024-05-151.8.7MichaelOrlitzky
hats60.00Haskell client for the NATS messaging system (library, mit, network, program)2016-10-040.1.0.1PatrikSandahl
hatt570.01A truth table generator for classical propositional logic. (bsd3, library, logic, program)2012-11-241.5.0.3BenedictEastaugh
hatter230.00Native IOS and Android applications in haskell! (library, mit, mobile, program)2026-04-190.3.0Jappie
haveibeenpwned180.00Library for checking for weak/compromised passwords. (bsd3, library, program, web)2025-01-180.2.0.3RyanTrinkle, abrar, alexfmpe, maralorn, ymeister
haven112.01Recursively retrieve maven dependencies (bsd3, java, program)2019-07-100.2.0.2RyanTrinkle, abrar
haverer80.00Implementation of the rules of Love Letter (apache, game, library, program)2015-06-080.3.0.0jml
hawitter90.01A twitter client for GTK+. Beta version. (bsd3, program, web)2010-03-250.4DaikiHanda
hax60.01Haskell cash-flow and tax simulation (finance, library, mit, program)2017-01-250.0.2johannesgerer
haxparse60.01Readable HaxBall replays (data, library, mit, program)2013-09-180.3.1.0JoelTaylor
hayland (deprecated)90.01Haskell bindings for the C Wayland library. (deprecated, graphics, library, mit, program)2014-09-160.1.0.1AukeBooij
hayoo-cli180.01Hayoo CLI (development, mit, program)2014-08-180.1.0.4Gonzih
hb3sum130.00A command line tool to compute BLAKE3 hashes. (agpl, cli, cryptography, program)2024-03-050.0.0.2SergeyAlirzaev
hback90.01N-back memory game (bsd3, game, program)2008-06-190.0.3NorbertWojtowicz
hbayesian40.00Composable Bayesian inference in Haskell on StableHLO/XLA (ai, library, math, mit, program, statistics)2026-04-250.1.0.0overshiki
hbb120.01Haskell Busy Bee, a backend for text editors. (development, lgpl, program)2014-10-280.4.0.2wolfch
hbeat140.01A simple step sequencer GUI. (bsd3, program, sound)2008-09-230.1.2TimDocker
hbf100.00An optimizing Brainfuck compiler and evaluator (gpl, language, library, program)2018-07-040.2.0.0paraseba
hbro1050.02Minimal extensible web-browser (browser, library, program, web)2016-11-261.7.0.0koral
hbro-contrib320.01Third-party extensions to hbro. (browser, library, program, web)2016-11-261.7.0.0koral
hburg120.01Haskell Bottom Up Rewrite Generator (bsd3, code-generation, program)2016-12-291.1.3IgorBohm, 1g0rb0hm
hcc30.01A toy C compiler. (bsd3, compiler, program)2009-11-200.0.0TomHawkins
hcheckers120.00Implementation of checkers ("draughts") board game - server application (bsd3, games, program)2021-05-040.1.0.2IlyaPortnov
hcoap260.00CoAP implementation for Haskell. (bsd3, library, network, program)2016-02-180.1.2.1lulf
hcoord40.00Easily convert between latitude/longitude, UTM and OSGB. (bsd3, geography, library, program)2017-03-131.0.0.0dfrancesconi
hcount90.00Haskell artifact name counts. (bsd3, program, project)2024-01-030.0.2tonyday567
hcube70.01Virtual Rubik's cube of arbitrary size. (bsd3, game, library, program)2013-05-200.1.1ToddWegner
hdevtools692.51Persistent GHC powered background server for FAST haskell development tools (development, mit, program)2019-03-100.1.8.0BitConnor, SchellScivally, ranjitjhala, ch1bo
hdiff82.00Pattern-Expression-based differencing of arbitrary types. (library, mit, other, program)2019-09-270.0.1vcmiraldo
hdirect50.01An IDL compiler for Haskell (bsd3, development, library, program)2010-02-140.21.0DonaldStewart
hdm60.01a small display manager. (gpl, program, system)2012-08-260.0.1TimothyHobbs
hdmenu50.00A small wrapper around dmenu (gpl, library, program, system)2024-05-230.3.0TonyZorman
hdo151.750A Digital Ocean client in Haskell (cloud, library, mit, program)2017-05-130.5abailly
hdocs810.02Haskell docs tool (bsd3, development, library, program)2020-11-040.5.5.0AlexandrRuchkin
hdph130.01Haskell distributed parallel Haskell (bsd3, control, distributed-computing, library, monads, parallelism, program)2013-02-070.0.1PatrickMaier
headergen80.01Creates a header for a haskell source file. (development, mit, program)2015-07-300.2.0.0bash0r
headroom440.00License Header Manager (bsd3, library, program, utils)2022-01-200.4.3.0xwinus
heapsort50.01Heapsort of MArrays as a demo of imperative programming (algorithms, bsd3, library, program)2010-08-040.1.0BartonMassey
heatitup80.00Find and annotate ITDs. (bioinformatics, gpl, library, program)2019-06-130.5.4.0GregorySchwartz
heatitup-complete170.00Find and annotate ITDs with assembly or read pair joining. (bioinformatics, gpl, library, program)2020-02-170.5.5.0GregorySchwartz
heckle450.00Jekyll in Haskell (feat. LaTeX) (library, mit, program, web)2017-03-112.0.2.12016rshah
hedis-namespace60.01Initial project template from stack (bsd3, library, program, web)2016-07-070.1.0.0jdabbs
hedra60.00A small library and executable for generating dice rolls. (game, library, mit, program)2019-01-020.1vtan
heftia-effects300.00higher-order algebraic effects done right (control, effect, library, monads, mpl, program)2025-04-240.7.0.0YamadaRyo
hegel60.00Property-based testing powered by Hypothesis (library, mit, program, testing)2026-04-170.1.0MarkWotton
heidi162.00Tidy data in Haskell (data-mining, data-science, generics, library, mit, program)2021-06-170.3.0ocramz
hein120.01An extensible build helper for haskell, in the vein of leiningen. (apache, development, program)2015-06-060.1.0.5khanage
helf150.01Typechecking terms of the Edinburgh Logical Framework (LF). (dependent-types, mit, program)2024-03-181.0.20240318AndreasAbel
helic282.00Clipboard Manager (clipboard, library, program)2023-07-070.6.1.0tek
helisp40.01An incomplete Elisp compiler (bsd3, compilers-interpreters, program)2008-04-070.1GwernBranwen
helium80.01The Helium Compiler. (compiler, library, program)2015-04-141.8.1AlejandroSerrano, JurriaanHage
hell70.01Haskell-based shell scripting language (bsd3, program, unclassified)2026-03-04666.20251111ChrisDone
hellage50.01Distributed hackage mirror (bsd3, distribution, network, program)2010-03-020.1.1JaroslavGridin
hellnet90.01Simple, distributed, anonymous data sharing network. (gpl, library, network, program)2010-03-030.1.1JaroslavGridin
hello130.01Hello World, an example package (bsd3, console, program, text)2010-07-021.0.0.2SimonMarlow
helm442.51A functionally reactive game engine. (frp, game-engine, library, mit, program)2016-10-031.0.0ZackCorr, kasbah
hemkay100.01A module music mixer and player (bsd3, music, program, sound)2009-12-200.2.0GergelyPatai
hemokit350.01Haskell port of the Emokit EEG project (bioinformatics, library, mit, program)2015-08-190.6.6NiklasHambuechen, PatrickChilton
heni70.02Deliberate mutation testing with attributable evidence (bsd3, library, program, testing)2026-10-240.1.0.0shinzui
heni-cli60.00Command line interface to trustworthy deliberate mutation testing (bsd3, program, testing)2026-10-240.1.0.0shinzui
heni-hspec60.00Attempt-bound Hspec evidence for Heni (bsd3, library, program, testing)2026-10-240.1.0.0shinzui
heni-tasty40.00Attempt-bound Tasty evidence for Heni (bsd3, library, program, testing)2026-10-240.1.0.0shinzui
herb42.00Accessible format for structured data serialization (bsd2, library, program, serialization, text)2025-01-160.1.0.0exaexa
herbalizer200.01HAML to ERB translator (mit, program, utility)2013-04-180.4.9DanielChoi
hercules-ci-agent1950.01Runs Continuous Integration tasks on your machines (apache, ci, devops, library, nix, program, testing)2026-10-180.10.11RobertHensing
hercules-ci-api470.01Hercules CI API definition with Servant (apache, library, program, unclassified)2026-10-180.8.4.1RobertHensing
hercules-ci-cli850.00The hci command for working with Hercules CI (apache, library, program, unclassified)2026-10-130.3.10RobertHensing
hermit540.02Haskell Equational Reasoning Model-to-Implementation Tunnel (bsd3, formal-methods, language, library, optimization, program, refactoring, reflection, transformation)2016-02-231.0.1AndrewFarmer, AndyGill, NeilSculthorpe, ryanglscott
herms182.01A command-line manager for delicious kitchen recipes (cli, command-line-tool, culinary, gpl, program)2018-08-011.9.0.4JackKiefer
hero-club-five-tenets90.00Think back of the five tenets of hero club (acme, bsd3, library, program)2016-01-240.3.0.3i_amd3
hesh230.00the Haskell Extensible Shell: Haskell for Bash-style scripts (development, library, mit, program)2017-03-071.11.0ChrisForno
hesql530.01Haskell's embedded SQL (database, program)2010-01-140.8ChristophBauer
hetris120.01Text Tetris (game, program)2008-03-060.2GwernBranwen
hetzner690.00Hetzner Cloud and DNS library. (cloud, library, mit, program)2026-11-081.0.0.0DanielDiaz
hevm992.00Symbolic EVM Evaluator (agpl, ethereum, library, program)2026-06-290.58.0mbrock, MrChico, dxo
hevolisa60.01Genetic Mona Lisa problem in Haskell (bsd3, graphics, program)2009-03-080.0.1DanielNeun
hevolisa-dph90.01Genetic Mona Lisa problem in Haskell - using Data Parallel Haskell (bsd3, graphics, program)2009-03-080.0.1DanielNeun
hexmino50.01A small game based on domino-like hexagonal tiles (bsd3, game, program)2018-05-220.1.1.0pasqu4le
hext80.00a text classification library (bsd3, library, natural-language-processing, program)2016-09-170.1.0.4aneksteind
heyefi262.01A server for Eye-Fi SD cards. (network, program, public-domain)2017-12-282.0.0.2ryantm
hfd40.01Flash debugger (bsd3, development, program)2011-09-020.0.2YurasShumovich
hfiar390.01Four in a Row in Haskell!! (bsd3, game, library, program)2010-07-012.1.1FernandoBenavides
hfmt432.250Haskell source code formatter (language, library, mit, program)2021-09-070.3.0.0danielstiner
hfractal290.01OpenGL fractal renderer (bsd3, graphics, program)2011-08-070.4.2.5ChrisHoldsworth
hg-buildpackage80.01Tools to help manage Debian packages with Mercurial (program, system)2008-01-161.0.4JohnGoerzen
hgen130.01Random generation of modal and hybrid logic formulas (program, theorem-provers)2025-10-151.5.0GuillaumeHoffmann
hgettext482.03Bindings to libintl.h (gettext, bindtextdomain) (bsd3, library, program, text)2026-02-180.1.40.3AndreasAbel, HerbertValerioRiedel, VasylPasternak, NH000
hgg-3d110.033D plot (CPU projection) for hgg; works with all 2D backends (bsd3, graphics, library, program)2026-08-130.2.0.0frenzieddoll
hgg-analyze-bridge60.00Bridge from hanalyze (Hanalyze.Model.HBM.ModelGraph) to hgg DAG rendering (bsd3, graphics, library, program)2026-08-130.2.0.0frenzieddoll
hgg-ihaskell90.00iHaskell (Jupyter) inline display backend for hgg (bsd3, graphics, library, program)2026-08-130.2.0.0frenzieddoll
hgg-svg60.07SVG backend for hgg (pure Haskell) (bsd3, graphics, library, program)2026-08-130.2.0.0frenzieddoll
hgithub20.01Haskell bindings to the GitHub API (bsd3, library, network, program)2012-04-220.1.0VoMinhThu
hgl-example100.01Various animations generated using HGL (graphics, program)2014-07-090.0.2HenningThielemann
hgom380.01An haskell port of the java version of gom (compiler, program)2010-03-040.6PaulBrauner
hgrep42.00Search Haskell source code from the command line (bsd3, language, library, program)2017-10-040.1TimHumphries
hhlo490.02Haskell Frontend for StableHLO — type-safe ML training/inference on CPU and GPU (ai, compilers, library, machine-learning, mit, program)2026-05-170.11.0.0overshiki
hhp312.00Happy Haskell Programming (bsd3, development, library, program)2026-09-061.0.5KazuYamamoto
hi410.01Generate scaffold for cabal project (bsd3, distribution, library, program)2018-07-271.2.0.2DaisukeFujimura
hi3status100.00Status line for i3bar. (library, mit, program, system)2015-12-290.1.1.0ScrambledEggs
hic80.00High Integrity Cimple (Hic) inference and lowering (data, gpl, library, program)2026-01-140.0.0.1iphydf
hiccup110.01Relatively efficient Tcl interpreter with support for basic operations (compilers-interpreters, program)2008-03-250.40KyleConsalus
hichi50.01haskell robot for IChat protocol (network, program)2009-03-010.0.1SergeiTrofimovich
hid-examples170.01Examples to accompany the book "Haskell in Depth" (bsd3, library, program, sample-code)2020-04-220.5bravit
hie-bios2150.07Set up a GHC API session (bsd3, development, library, program)2026-07-300.21.0mpickering, fendor
hie-core (deprecated in favor of ghcide)30.00The core of an IDE (apache, deprecated, development, library, program)2019-09-070.0.1cocreature
hiedb850.07Generates a references DB from .hie files (bsd3, development, library, program)2026-01-210.8.0.0AlanZimmerman, wz1000, jhrcek
hierarchical-spectral-clustering470.02Hierarchical spectral clustering of a graph. (bioinformatics, gpl, library, program)2019-09-260.5.0.1GregorySchwartz
hifi230.00WiFi connection script generator (bsd3, cli, library, program)2018-05-290.1.4.1gonz
highWaterMark (deprecated)50.01Memory usage statistics (deprecated, development, program)2008-03-170.1.1GwernBranwen
highlight80.00Command line tool for highlighting parts of files matching a regex. (bsd3, library, program, text)2022-05-261.0.0.2cdepillabout
highlight-versions (deprecated)400.01Highlight package versions which differ from the latest version on Hackage (bsd3, deprecated, distribution, program)2018-07-270.1.4BrentYorgey
hikchr70.00Haskell wrapper for Pikchr, a PIC-like markup language for diagrams. (bsd3, diagram, library, program, svg)2025-01-180.2.0.0adrian
hills210.01Generate STL models from SRTM elevation data. (bsd3, geography, program)2020-10-060.1.2.7djf
himari480.00A standard library for Haskell as an alternative to rio (apache, control, library, program)2026-11-011.1.6.2ncaq
himerge90.01Haskell Graphical User Interface for Emerge (gui, program)2008-05-020.20LuisAraujo
himg60.01Simple gtk2hs image viewer. Point it at an image and fire away. (gpl, graphics, library, program)2014-02-010.1.0.0MateuszKowalczyk
himpy30.01multithreaded snmp poller for riemann (mit, program, system)2014-02-100.5.0pyr
hinagata-cli70.00Fixture planning and PostgreSQL lease commands for Hinagata (bsd3, program, testing)2026-10-180.1.0.0shinzui
hindent2732.254Extensible Haskell pretty printer (bsd3, development, library, program)2026-01-246.3.0ChrisDone, MihaiMaruseac, gibiansky, sighingnow
hinfo120.00Command Line App With Info on your Haskell App (bsd3, cli, library, program, utils)2018-08-110.0.3.0ChristopherDavenport
hinit120.00Generic project initialization tool (bsd3, cli, library, program)2021-10-180.2.2Poscat
hinvaders40.01Space Invaders (game, program)2008-02-210.1GwernBranwen
hips60.01an IPS patcher (bsd3, data, program)2011-03-290.1PatrickPalka
hipsql-client20.00 (bsd3, library, program, unclassified)2021-04-050.0.0.0carymrobbins
hipsql-server70.01 (bsd3, library, program, unclassified)2021-04-050.0.0.0carymrobbins
hircules100.01IRC client (network, program)2010-08-140.4.1JensPetersen
hirt100.01Calculates IRT 2PL and 3PL models (bsd3, math, program)2012-05-140.0.1.1IvanLabath
hist-pl190.01Umbrella package for the historical dictionary of Polish (bsd3, library, natural-language-processing, program)2013-10-050.3.2JakubWaszczuk
historian90.01Extract the interesting bits from shell history (bsd3, console, program)2009-06-130.0.1MaxRabkin
hit440.03Git like program in haskell (bsd3, development, program)2019-01-260.7.0VincentHanquez
hit-on72.00Haskell Git Helper Tool (cli-tool, git, library, mpl, program)2019-08-030.1.0.0vrom911
hix910.00Haskell/Nix development build tools (build, library, program)2025-04-190.9.1tek
hjs180.01JavaScript Parser (bsd3, compilers-interpreters, library, program)2008-04-030.2.1GwernBranwen, MarkWassell
hjsmin1950.014Haskell implementation of a javascript minifier (bsd3, library, program, web)2023-01-110.2.1AlanZimmerman, ErikDeCastroLopo, TonyMorris
hjugement-cli240.00Majority Judgment and Helios-C command line tool (gpl, politic, program)2019-11-050.0.0.20191104julm
hkgr1400.00Simple Hackage release workflow for package maintainers (gpl, program, util)2026-10-060.5.1JensPetersen
hlcm92.01Fast algorithm for mining closed frequent itemsets (algorithms, bsd3, data-mining-----------, library, program)2010-06-160.2.2AlexandreTermier
hleap70.01Web Socket interface to Leap Motion controller (hardware, library, mit, program)2019-02-200.2.0.0BrianBush
hledger6492.54Command-line interface for the hledger accounting system (console, finance, gpl, library, program)2026-09-101.52.4SimonMichael
hledger-api (deprecated in favor of hledger-web)790.01Web API server for the hledger accounting tool (deprecated, finance, gpl, program)2019-03-021.14SimonMichael
hledger-chart (deprecated in favor of hledger-web)190.01A pie chart image generator for the hledger accounting tool. (deprecated, finance, program)2011-10-050.16.1SimonMichael
hledger-diff610.01Compares the transactions in two ledger files. (console, finance, gpl, program)2018-05-130.2.0.14gebner
hledger-flow1580.00An hledger workflow focusing on automated statement import and classification. (console, finance, gpl, library, program)2026-11-060.18.0apauley
hledger-iadd1920.00A terminal UI as drop-in replacement for hledger add (bsd3, console, finance, library, program)2026-09-281.3.23SimonMichael, hpdeifel
hledger-interest1000.01computes interest for a given account (bsd3, finance, program)2026-11-112.0.0PeterSimons
hledger-irr (deprecated in favor of hledger)400.01computes the internal rate of return of an investment (bsd3, deprecated, finance, program)2019-10-060.1.1.16JoachimBreitner
hledger-makeitso (deprecated in favor of hledger-flow)60.00An hledger workflow focusing on automated statement import and classification. (console, deprecated, finance, gpl, library, program)2019-04-060.10.0.0apauley
hledger-stockquotes171.750Generate HLedger Price Directives From Daily Stock Quotes. (bsd3, console, finance, library, program)2024-12-160.1.3.2lysergia
hledger-ui4210.01Terminal interface for the hledger accounting system (console, finance, gpl, library, program)2026-09-101.52.4SimonMichael
hledger-vty (deprecated in favor of hledger-web)190.01A curses-style console interface for the hledger accounting tool. (deprecated, finance, program)2011-10-050.16.1SimonMichael
hlibcpuid70.00Bindings to https://github.com/anrieff/libcpuid (foreign, library, mit, program, system)2020-01-210.2.0dtaskoff
hlint8142.7514Source code suggestions (bsd3, development, library, program)2025-02-023.10NeilMitchell
hlint-test50.00Run hlint in test suite (bsd3, library, program, test)2017-12-290.1.0.0yrid
hlongurl80.01Library and utility interfacing to longurl.org (bsd3, library, program, web)2009-01-250.9.3RobinGreen
hmark110.01A tool and library for Markov chains based text generation. (bsd3, library, program, text)2015-01-231.2JaroslavGridin
hmeap-utils (deprecated)140.01Haskell Meapsoft Parser Utilities (deprecated, program, sound)2013-04-270.14RohanDrape
hmenu40.01CLI fuzzy finder and launcher (bsd3, program, system)2015-08-020.1.0.1sulami
hmep182.00HMEP Multi Expression Programming – a genetic programming variant (ai, bsd3, library, program)2017-10-130.1.1penkovsky
hmk290.01A make alternative based on Plan9's mk. (control, development, distribution, library, program)2016-01-110.9.7.4MathieuBoespflug
hmp3340.01An ncurses mp3 player written in Haskell (program, sound)2008-06-131.5.2.1DonaldStewart, IsaacJones
hmp3-ng1652.00A TUI mp3 player written in Haskell (gpl, library, program, sound)2026-10-232.20.2galen
hmumps80.01Interpreter for the MUMPS langugae (development, program)2010-05-120.1.1AntoineLatter
hnetcdf140.02Haskell NetCDF library (bsd3, data, library, program)2019-02-060.5.0.0DominicSteinitz, IanRoss
hnix-store-aterm80.01Parse and render *.drv files (bsd3, library, nix, program)2026-10-210.1.0.0srk
hnock80.00A Nock interpreter. (language, library, mit, program)2019-10-010.4.0JaredTobin
hnop40.01 (all-rights-reserved, program, unclassified)2006-11-140.1IsaacJones
hnormalise270.00Log message normalisation tool producing structured JSON messages (bsd3, command-line, library, program)2017-12-040.5.1.0AndyGeorges
hoauth2-demo430.00hoauth2 demo application (mit, network, program)2026-08-101.12.3HaishengWu
hoauth2-providers-tutorial390.00Tutorial for the hoauth2-providers module (library, mit, network, program)2026-04-170.9.1HaishengWu
hoauth2-tutorial420.00Tutorial for using hoauth2 (mit, network, oauth2, program, tutorial)2026-04-170.9.1HaishengWu
hob30.01A source code editor aiming for the convenience of use (gpl, ide, library, program)2014-12-270.0.1.0rakatan
hobbes80.01A small file watcher for OSX (bsd3, program, system)2014-03-250.2.2JasonHickner
hocd150.00OpenOCD Haskell interface (bsd3, embedded, library, program)2024-01-180.1.3.0srk
hocker130.00Interact with the docker registry and generate nix build instructions (apache, library, program, utilities)2020-08-171.0.6ParnellSpringmeyer
hoe140.01hoe: Haskell One-liner Evaluator (bsd3, compilers-interpreters, program)2015-06-241.1.0HideyukiTanaka
hog30.01Simple IRC logger bot. (bsd3, network, program)2011-02-110.1.1ChrisDone
hogg220.01Library and tools to manipulate the Ogg container format (bsd3, codec, library, program)2012-08-280.4.1.2ConradParker
hoggl70.00Bindings to the Toggl.com REST API (bsd3, library, network, program)2020-03-290.2.0.1RobinGreen, markus1189
hogre-examples590.01Examples for using Hogre. (graphics, mit, program)2012-04-050.1.4AnttiSalonen
hois30.02OIS bindings (bsd3, gui, library, program)2013-03-310.1.0.0DavidEichmann
hol190.01Higher order logic (library, logic, mit, program)2022-08-081.4JoeHurd
holy-project312.01Start your Haskell project with cabal, git and tests. (development, library, mit, program)2015-08-240.2.0.1yogsototh
home-assistant-client20.00Client library for the Home Assistant API. (bsd3, library, program, web)2025-08-100.1.0.0mbg
homplexity621.251Haskell code quality tool (bsd3, language, library, program, tools)2022-10-090.4.8.1MichalGajda
homura-stopwatch100.00 (library, mit, program, unclassified)2025-08-140.2.0.1ncaq
hoobuddy70.01Simple tool for fetching and merging hoogle data (development, mit, program)2015-01-070.1.0.1gilligan
hoodie40.01A small, toy roguelike (game, gpl, program)2013-11-060.1.0.0dvolk
hoodle410.01Executable for hoodle (application, gpl, library, program)2016-07-250.5IanWooKim
hoodle-extra60.01extra hoodle tools (application, gpl, program)2014-07-140.1IanWooKim
hoodle-publish120.02publish hoodle files as a static web site (application, bsd3, library, program)2016-07-250.2.1IanWooKim
hoogle3682.57Haskell API Search (bsd3, development, library, program)2026-01-195.0.19.0NeilMitchell, Bodigrim
hoogle-index480.01Easily generate Hoogle indices for installed packages (bsd3, documentation, program)2016-04-130.4.4BenGamari
hoovie50.01Haskell Media Server (bsd3, media, program)2012-12-260.1.1PeterVanDenBrand
hopenpgp-tools2000.01hOpenPGP-based command-line tools (agpl, codec, data, program)2026-09-180.26.1ClintAdams
hopfield130.01Hopfield Networks, Boltzmann Machines and Clusters (ai, library, machine-learning, mit, program)2014-04-090.1.0.2NiklasHambuechen
hopfield-networks42.01Hopfield Networks for unsupervised learning in Haskell (library, math, mit, program)2013-11-200.1.0.0ajtulloch
hops500.00Handy Operations on Power Series (bsd3, library, math, program)2017-07-030.7.2AndersClaesson
hoq70.01A language based on homotopy type theory with an interval type (dependent-types, gpl, program)2014-09-270.3valis
horizon-gen-nix190.00Generate nix expressions from horizon-spec definitions (library, mit, nix, package-management, program)2023-02-040.6locallycompact
horizontal-rule230.00horizontal rule for the terminal (library, mit, program, utils)2026-01-100.7.1.0TravisCardwell
horname150.00Rename function definitions returned by SMT solvers (bsd3, library, program, web)2019-07-140.2.0.0cocreature
hosc-utils (deprecated)180.01Haskell Open Sound Control Utilities (deprecated, program, sound)2014-10-130.15RohanDrape
hosts-server70.01An dns server which is extremely easy to config. (gpl, network, program)2014-01-150.1.1YiHuang
hotel-california310.00 (bsd3, library, program, unclassified)2026-08-140.1.0.0parsonsmatt
hothasktags340.01Generates ctags for Haskell, incorporating import lists and qualified imports (bsd3, development, program)2017-01-250.3.8JohnLato, LukePalmer
houseman80.00A Haskell implementation of Foreman (development, library, mit, program)2016-05-060.1.0DaisukeFujimura
hp2any-graph420.01Real-time heap graphing utility and profile stream server with a reusable graphing module. (bsd3, development, profiling, program, utils)2014-07-230.5.4.2GergelyPatai
hp2any-manager200.01A utility to visualise and compare heap profiles. (bsd3, development, profiling, program, utils)2013-03-040.4.6GergelyPatai
hp2html70.01A tool for converting GHC heap-profiles to HTML. (bsd3, profiling, program)2012-02-220.2IavorDiatchki
hp2pretty612.251generate pretty graphs from heap profiles (bsd3, development, program)2024-10-250.10.1ClaudeHeilandAllen
hpack4312.011A modern format for Haskell packages (development, library, mit, program)2026-06-060.39.6SimonHengel, SoenkeHahn, mpilgrem
hpack-convert282.01Convert Cabal manifests into hpack's package.yamls (development, library, mit, program)2017-06-221.0.1yamadapc
hpack-dhall540.00Hpack with Dhall (bsd3, development, library, program, public-domain)2026-06-100.6.0philderbeast, sellout
hpaco400.01Modular template compiler (bsd3, development, program)2014-07-310.28.0.5TobiasDammers
hpage2440.01A scrapbook for Haskell developers (bsd3, development, editor, ide, program)2010-08-280.12.2FernandoBenavides
hpaste140.01Haskell paste web site. (program, web)2013-07-021.2.0ChrisDone, DonaldStewart
hpasteit230.01A command-line client for hpaste.org (bsd3, program, web)2013-03-110.3.3PatrickPalka
hpc-codecov670.00Generate reports from hpc data (bsd3, data, library, program, test)2026-05-150.6.4.1AtsuroHoshino
hpc-coveralls1102.01Coveralls.io support for Haskell. (bsd3, control, library, program)2017-05-131.0.10killy971
hpc-lcov300.00Convert HPC output into LCOV format (bsd3, control, library, program)2024-12-211.2.0brandonchinn178
hpc-threshold80.00Ensure the code coverage is above configured thresholds (bsd3, development, library, program)2018-04-250.1.0.3eckyputrady
hpc-tracer120.01Tracer with AJAX interface (bsd3, program, test, trace)2008-10-080.3.1AndyGill
hpdft650.01PDF parsing library and CLI for text, layout, diff, images, and forms (library, mit, pdf, program)2026-09-290.4.7.2keiichiroShikano
hpg140.01a simple password generator (program, security)2018-01-040.8fritjof
hplaylist60.01Application for managing playlist files on a music player (program, sound)2011-05-210.2TimChevalier
hpodder350.01Podcast Aggregator (downloader) (network, program)2011-11-081.1.6JohnGoerzen
hpp480.02A Haskell pre-processor (bsd3, development, library, program)2022-04-040.6.5AnthonyCowley
hprotoc1590.01Parse Google Protocol Buffer specifications (bsd3, library, program, text)2020-11-052.4.17ChrisKuklewicz, DavidFeng, TvH, k_bx
hprotoc-fork80.01Parse Google Protocol Buffer specifications (bsd3, library, program, text)2014-08-282.0.16.1StefanWehr
hprox750.00a lightweight HTTP proxy server, and more (apache, library, program, proxy, web)2026-10-260.7.2BinJin
hps-cairo (deprecated)70.01Cairo rendering for the haskell postscript library (deprecated, graphics, library, program)2011-11-220.11RohanDrape
hpylos42.01AI of Pylos game with GLUT interface. (ai, game, program)2008-11-231.0BartoszWojcik
hpyrg40.01pyrg utility done right (mit, program, text)2012-10-150.1.0.0MatveyAksenov
hpython172.00Python language tools (bsd3, language, library, program)2019-05-020.3qfpl
hq-json151.50A streaming JSON processor inspired by jq, with a lens-based query language. (cli, data-processing, json, library, mit, optics, program, streaming, tools)2026-10-180.1.2damianfral
hqcsim42.00A library for simulating quantum circuits. (algorithms, bsd3, library, program)2024-08-150.1.0.023ars
hquantlib480.01HQuantLib is a port of essencial parts of QuantLib to Haskell (finance, lgpl, library, program)2024-12-180.0.5.2PavelRyzhov
hranker80.01Basic utility for ranking a list of items (bsd3, console, program)2009-03-230.1.1RobinGreen
hreq-client50.01A Type dependent Highlevel HTTP client library. (library, mit, network, program, web)2019-11-260.1.1.0epicallan
hricket130.01A Cricket scoring application. (bsd3, game, program)2010-01-050.5AnthonyGrimes
hriemann390.00A Riemann Client for Haskell (library, mit, monitoring, program)2020-12-040.3.3.4shmish111
hs60.00GHC-toolchain installer broker (bsd3, development, library, program)2021-07-060.1.0.2ChrisDornan
hs-bindgen120.00Generate Haskell bindings from C headers (bsd3, development, library, program)2026-10-081.0.0.0EdskoDeVries, dschrempf
hs-carbon-examples20.01Example Monte Carlo simulations implemented with Carbon (mit, program, simulation)2014-06-100.0.0.1cholmgreen
hs-conllu60.01Conllu validating parser and utils. (lgpl, library, program, unclassified)2021-04-170.1.5odanoburu
hs-di112.01Dependency Injection library for Haskell (bsd3, control, dependency-injection, development, library, program, template-haskell, testing)2016-09-260.3.0Wizek
hs-gen-iface (deprecated)60.01Utility to generate haskell-names interface files (deprecated, language, mit, program)2014-11-260.5.0AdamBergmark, RomanCheplyaka, PhilippSchuster
hs-hath90.00A Haskell implementation of the Hentai@Home client (gpl, library, program, web)2026-11-081.2.0pe200012
hs-highlight132.00A tool to highlight terminal strings (development, library, mit, program)2025-02-261.0.4lorenzo_wb
hs-logo120.01Logo interpreter written in Haskell (bsd3, parser, program)2012-05-130.5.1DeepakJois
hs-mesos160.01 (library, mit, program, system)2015-06-040.20.3.0IanDuncan
hs-nombre-generator60.01Name generator. (mit, program, web)2014-06-250.2.1.0alvare
hs-openmoji-data240.00The OpenMoji emoji dataset (bsd3, data, library, program, text)2024-01-2615.0.0abrar
hs-opentelemetry-semantic-conventions90.027OpenTelemetry Semantic Conventions for Haskell (bsd3, library, monitoring, observability, opentelemetry, program, telemetry)2026-05-291.40.0.0IanDuncan, mercury
hs-pattrans110.00DSL for musical patterns and transformation, based on contravariant functors. (bsd3, language, library, program)2020-02-120.1.0.2omelkonian
hs-pgms80.01Programmer's Mine Sweeper in Haskell (bsd3, game, library, program)2008-06-180.1.0.1BertramFelgenhauer
hs-popen70.00Bindings to C pipe functions. (bsd3, library, program, system)2016-06-280.1.0.0deech
hs-rs-notify520.00Experimental! Wraps this awesome rust library so you can use it in haskell. https://docs.rs/crate/notify (bsd3, library, program, web)2018-02-280.1.0.18stoeffel
hs-sdl-term-emulator50.00Terminal Emulator written in Haskell, SDL2 Backend (library, mit, program, terminal)2021-07-300.1.0.4BitConnor
hs-snowtify50.01snowtify send your result of `stack build` (`stack test`) to notify-daemon :dog2: (mit, program, simple)2017-07-220.1.0.0aiya000
hs-speedscope120.01Convert an eventlog into the speedscope json format (bsd3, development, library, program)2025-06-070.3.0OliverCharles, mpickering, fendor, teo
hs-tags170.00Create tag files (ctags and etags) for Haskell code. (development, mit, program)2022-01-100.1.5.3AndreasAbel, AndresSicardRamirez, NilsAndersDanielsson, UlfNorell
hs-twitterarchiver70.01Commandline Twitter feed archiver (network, program)2012-01-190.2DeepakJois
hs-wayland-scanner40.00Haskell implementation of the Wayland Message Definition Language (bsd3, library, program, system)2026-04-120.1.0AndreaRossato
hs2048 (deprecated)30.01A 2048 clone in Haskell. (deprecated, game, library, mit, program)2014-04-020.1.0taylorfausak, fozworth
hs2ats642.01Create ATS types from Haskell types (ats, bsd3, haskell, language, library, program)2019-10-170.5.0.1vmchale
hs2bf140.01Haskell to Brainfuck compiler (bsd3, compiler, program)2010-11-200.6.2DaikiHanda
hs2dot180.01Generate graphviz-code from Haskell-code. (language, program)2010-08-150.1.4OscarFinnsson
hsakamai100.00Akamai API(Edgegrid and Netstorage) (bsd3, library, program, web)2019-03-070.1.0.1junjihashimoto
hsay100.01(ab)Use Google Translate as a speech synthesiser (accessibility, gpl, program)2014-12-171.1.0alexander
hsb2hs220.01Preprocesses a file, adding blobs from files as string literals. (bsd3, development, program)2015-07-050.3.1JohnMacFarlane
hsbackup50.01simple utility for rolling filesystem backups (bsd3, program, system)2010-04-080.1.1PetrRockai
hsbc140.01A command line calculator (mit, program, utilities)2017-01-160.1.1.0georgerogers42
hsbencher-fusion370.01Backend for uploading benchmark data to Google Fusion Tables. (bsd3, library, program, unclassified)2015-04-260.3.15.2RyanNewton
hsc2hs1730.01A preprocessor that helps with writing Haskell bindings to C code (bsd3, development, program)2023-09-200.68.10BenGamari, HerbertValerioRiedel, wz1000
hsc3-forth (deprecated)50.01FORTH SUPERCOLLIDER (deprecated, program, sound)2014-10-110.15RohanDrape
hsc3-graphs (deprecated)210.01Haskell SuperCollider Graphs (deprecated, library, program, sound)2014-10-130.15RohanDrape
hsc3-lisp (deprecated)60.01LISP SUPERCOLLIDER (deprecated, program, sound)2014-10-110.15RohanDrape
hsc3-utils (deprecated)100.02Haskell SuperCollider Utilities (deprecated, library, program, sound)2014-10-230.15RohanDrape
hscaffold230.00Very simple file/directory structure scaffolding writer monad EDSL (development, library, mit, program)2016-11-150.4.5.0yamadapc
hscd150.01Command line client and library for SoundCloud.com (bsd3, library, network, program)2012-04-080.0.3SebastianMagri
hscharm70.00minimal ncurses-like library (bsd3, gui, library, program)2018-04-060.0.2AndrewPennebaker
hscim210.01hscim json schema and server implementation (agpl, library, program, web)2024-11-250.4.0.6PaoloCapriotti, MatthiasFischmann, battermann, supersven
hsclock50.01An elegant analog clock using Haskell, GTK and Cairo (program, system)2008-06-161.0DonaldStewart
hscolour1410.038Colourise Haskell code. (language, library, program)2023-08-301.25DonaldStewart, MalcolmWallace, phadej
hscope310.01cscope like browser for Haskell code (bsd3, program, source-tools)2016-01-190.4.3BorisSukholitko
hscrtmpl160.01Haskell shell script templates (application, console, program, scripting)2023-07-082.0DinoMorelli
hscuid120.00Collision-resistant IDs (bsd3, library, program, web)2017-04-281.2.0.1DanielBuckmaster
hscurses-fish-ex160.01hscurses swimming fish example (console, development, education, help, program, user-interfaces)2018-01-081.3.2DinoMorelli
hsdev1670.01Haskell development library (bsd3, development, library, program)2020-11-040.3.4.0AlexandrRuchkin
hsdip60.01hsdip - a Diplomacy parser/renderer (bsd3, library, program, system)2008-02-240.1GwernBranwen
hsec-sync90.00Synchronize with the Haskell security advisory database (bsd3, data, library, program)2026-10-110.2.0.3MihaiMaruseac, M15K, frasertweedale, TristanCacqueray, gdifolco
hsec-tools150.00Tools for working with the Haskell security advisory database (bsd3, data, library, program)2026-06-100.5.0.0MihaiMaruseac, M15K, frasertweedale, TristanCacqueray, gdifolco
hsendxmpp352.00sendxmpp clone, sending XMPP messages via CLI (agpl, cli, network, program, xmpp)2025-01-080.1.3.3SergeyAlirzaev
hsenv180.01Virtual Haskell Environment builder (bsd3, development, program)2014-08-280.5TaylorHedberg
hserv90.01Simple http server in haskell. (mit, network, program)2014-04-070.1.0.3rejuvyesh
hsfcsh50.01Incremental builder for flash (bsd3, development, program)2011-09-020.0.1YurasShumovich
hsfilt50.01Z-decoder. (development, mit, program)2014-11-030.1.0.0OmerAgacan
hsftp80.00A SFTP client tool for secure file transfer operations (bsd3, library, network, program, utils)2025-09-021.5.0MaurizioDusi
hsgtd100.01Console-based gettings-things-done application (other-, program)2009-09-260.2MichaelLesniak
hsilop140.01RPN calculator (math, mit, program)2015-09-190.2.0.0rnhmjoj
hsimport1110.01Extend the import list of a Haskell source file (bsd3, development, library, program, utils)2019-09-150.11.0fendor
hsinspect442.251Inspect Haskell source files. (building, gpl, library, program)2023-05-220.1.0tseenshe
hsinspect-lsp190.00LSP interface over the hsinspect binary. (building, gpl, library, program)2020-07-220.0.6tseenshe
hsinstall562.00Install Haskell software (library, program, utility)2026-09-063.2DinoMorelli
hslackbuilder40.01HSlackBuilder automatically generates slackBuild scripts from a cabal package (bsd3, distribution, program)2010-02-100.0.2AndreaRossato
hslinks150.01Resolves links to Haskell identifiers. (bsd3, development, program)2014-08-190.6.1HansHoglund
hslogger-colorfmt70.00Custom hslogger formatters implementing color output (interfaces, library, logging, program)2026-08-271.0.0DinoMorelli
hslogger-reader110.00Parsing hslogger-produced logs. (bsd3, interfaces, library, parsing, program)2017-08-141.0.3alex_bates
hslua-examples160.00Examples of how to combine Haskell and Lua. (foreign, mit, program)2026-01-082.0.3tarleb
hsmin10.00Haskell source code minifier for LLM token reduction (development, library, mit, program)2026-03-290.1.0Jappie
hsmodetweaks70.01Tool for generating .dir-locals.el for intero (bsd3, program, tools)2018-02-120.1.0.1MarkWotton
hsnock140.01Nock 5K interpreter. (language, library, program, public-domain)2013-11-050.5.1mrdomino
hsns190.01a miniature network sniffer (bsd3, network, program)2007-08-290.5.3AustinSeipp
hsntp90.01Libraries to use SNTP protocol and small client/server implementations. (bsd3, library, program, system)2008-03-090.1GwernBranwen
hsoptions40.01Haskell library that supports command-line flag processing (apache, library, program, system)2014-04-281.0.0.0josercruz01
hspec-discover5202.256Automatically discover and run Hspec tests (library, mit, program, testing)2026-10-012.11.18SimonHengel, SoenkeHahn, parsonsmatt
hspec-discover-discover50.00 (bsd3, library, program, unclassified)2026-02-231.0.0.0parsonsmatt
hspec-effectful-discover90.00Automatic spec discovery for hspec-effectful (program, test)2026-07-211.0.1IDA
hspec-golden390.01Golden tests for hspec (library, mit, program, testing)2024-04-120.2.2.0PatrickBrisbin, stackbuilders, camm
hspec-meta3170.01A version of Hspec which is used to test Hspec itself (library, mit, program, testing)2026-10-012.11.18SimonHengel, SoenkeHahn, parsonsmatt
hspec-setup250.00Add an hspec test-suite in one command (development, library, mit, program)2016-08-220.2.1.0yamadapc
hspresent120.01A terminal presentation tool (bsd3, console, library, program)2009-11-180.2.2EvanKlitzke
hspretty60.00My opinionated Haskell project formatter. (bsd3, library, program, tools)2021-08-210.2.0.0lancelet
hsprocess (deprecated in favor of haskell-awk)120.01The Haskell Stream Processor command line utility (console, deprecated, gpl, library, program)2013-08-040.3MarioPastorelli
hsqml-demo-manic90.01HsQML-based clone of Pipe Mania (bsd3, game, program)2025-06-300.3.5.0RobinKay, prolic
hsqml-demo-morris160.01HsQML-based implementation of Nine Men's Morris (bsd3, game, graphics, program)2025-06-300.3.2.0RobinKay, prolic
hsqml-demo-notes110.01Sticky notes example program implemented in HsQML (bsd3, graphics, program)2025-06-300.3.4.0RobinKay, prolic
hsqml-demo-samples140.01HsQML sample programs (bsd3, graphics, gui, program)2025-06-300.3.5.0RobinKay, prolic
hsqml-morris (deprecated in favor of hsqml-demo-morris)60.01HsQML-based implementation of Nine Men's Morris (bsd3, deprecated, game, graphics, program)2013-10-080.2.0.0RobinKay, prolic
hssourceinfo50.01get haskell source code info (bsd3, development, program)2012-02-220.0.2YoshikuniJujo
hstar222.00Haskell version of tar CLI utility (archive, bsd3, codec, program, tar)2024-10-210.1.0.7vmchale
hstest50.01Runs tests via QuickCheck1 and HUnit; like quickCheck-script but uses GHC api (bsd3, program, testing)2010-06-150.0.1DaveHinton
hstidy150.01Takes haskell source on stdin, parses it, then prettyprints it to stdout. (bsd3, program, text)2008-07-010.2MattMorrow
hstorchat80.01Distributed instant messaging over Tor (gpl, library, network, program)2014-06-040.1.1.0creichert, ChristopherReichert
hstradeking30.01Tradeking API bindings for Haskell (bsd3, finance, library, program)2014-03-120.1.0TravisAthougies
hstratus170.00Unified CLI for iCloud services (bsd3, library, network, program)2026-10-230.1.1.3adetokunbo
hstyle150.01Checks Haskell source code for style compliance. (bsd3, development, program)2011-11-080.2.0.3DougBeardsley, JasperVanDerJeugt
hstzaar490.01A two player abstract strategy game. (bsd3, game, program)2016-05-270.9.4PedroVasconcelos
hsubconvert100.01One-time, faithful conversion of Subversion repositories to Git (bsd3, development, program)2012-10-130.0.2JohnWiegley
hsudoku102.00Sudoku game with a GTK3 interface (game, library, mit, program)2017-05-160.1.1.0mmo
hsx (deprecated in favor of hsx2hs)770.016HSX (Haskell Source with XML) allows literal XML syntax in Haskell source code. (bsd3, deprecated, language, library, program)2013-09-050.10.5NiklasBroberg
hsx2hs730.011HSX (Haskell Source with XML) allows literal XML syntax in Haskell source code. (bsd3, language, library, program)2023-01-230.14.1.11DavidFox, JeremyShaw, NiklasBroberg
htags70.01A Haskell98 parsing tags program similar to ctags. (bsd3, development, program, source-tools, utils)2008-11-031.0.1DavidSankel
htalkat380.00Talk across TLS (gpl, network, program)2026-09-060.1.2.7mbays
htar220.01Command-line tar archive utility. (bsd3, codec, program)2015-07-060.4.0.2BjornBringert, DuncanCoutts
htestu90.01A library for testing correctness of pseudo random number generators in Haskell. (library, mit, program, system)2016-08-080.1.1.2DominicSteinitz
htime150.01Timing utility for the command line (bsd3, program, system)2015-01-220.3.1JosePedroMagalhaes
html-charset50.00Determine character encoding of HTML documents/fragments (lgpl, library, program, web)2022-12-120.1.1hongminhee
html-presentation-text110.00Simple tool to create html presentation for text. (mit, program, web)2022-01-210.2.1.0OleksandrZhabenko
html-validator-cli (deprecated)70.00A command-line interface for https://validator.w3.org/ (bsd3, deprecated, library, program, web)2018-10-160.1.0.5KenzoYotsuya
html2hamlet90.01HTML to Hamlet converter (bsd3, program, text)2015-06-280.3.0HideyukiTanaka
htodo100.01A todo application. (bsd3, other, program)2013-01-200.0.4YoichiHirai
htsn (deprecated)460.01Parse XML files from The Sports Network feed. (deprecated, gpl, program, utils)2014-09-230.1.1MichaelOrlitzky
htsn-import (deprecated)1220.01Import XML files from The Sports Network into an RDBMS. (deprecated, gpl, program, utils)2015-03-100.2.4MichaelOrlitzky
http-client-overrides90.00HTTP client overrides (bsd3, library, network, program)2019-10-020.1.1.0robbiemcmichael
http-exchange-instantiations140.00Instantiations of http-exchange (bsd3, library, network, program)2023-09-200.1.3.0andrewthad, l3c_amartin
http-proxy1050.01A library for writing HTTP and HTTPS proxies (bsd3, library, program, web)2021-04-170.1.2.0ErikDeCastroLopo
http-test540.01Test framework for HTTP APIs (bsd3, library, program, test, web)2016-03-030.2.5glutamate
http-trace162.00Tracking http redirects (library, mit, program, web)2016-06-200.1.1.1sigrlami
http2-client-exe100.01A command-line http2 client. (bsd3, program, web)2019-04-210.2.0.0LucasDiCioccio, ProofOfKeags
htune50.01harmonic analyser and tuner for musical instruments (bsd3, program, sound)2013-03-190.2PetrRockai
htzaar90.01A two player abstract strategy game. (bsd3, game, program)2009-10-090.0.2TomHawkins
hub180.01For multiplexing GHC installations and providing development sandboxes (bsd3, development, distribution, program)2015-02-231.9.0.1ChrisDornan
hubris120.01Support library for Hubris, the Ruby <=> Haskell bridge (language, library, program)2010-04-240.0.3MarkWotton
huff100.00A fast-foward-based planner (ai, bsd3, library, program)2016-09-090.1.0.1TrevorElliott
huggingface70.00Haskell bindings to the Hugging Face Hub and Inference APIs (bsd3, library, machine-learning, network, program)2026-10-210.1.0.0topos
hulk80.01IRC server written in Haskell. (bsd3, library, network, program)2013-11-030.2.0ChrisDone
hum80.00A TUI MPD client, inspired by ncmpcpp (gpl, library, program, sound)2021-01-250.2.0.0iyefrat
hums760.01Haskell UPnP Media Server (network, program)2014-06-180.7.0BardurArantsson
hunch110.01CSS-like syntax for file system manipulation. (console, mit, program)2015-09-030.2.0loganbraga
hunit-gui90.01A GUI testrunner for HUnit (library, program, public-domain, testing)2010-03-140.1.4KimWallmark
hunp80.01Unpacker tool with DWIM (console, program, utils)2009-06-200.1DenizDogan
hunt-server120.01A search and indexing engine server. (data, mit, program, text)2015-03-010.3.0.2alexbiehl
hunt-server-cli50.01A Command line Interface for the Hunt server. (console, mit, program)2015-02-270.2.0.0alexbiehl
hup132.00Upload packages and/or documentation to a hackage server (bsd2, distribution, documentation, library, program, web)2022-01-050.3.0.3phlummox
hurdle190.01Extract function names from Windows DLLs. (bsd3, program, system)2010-02-240.4.0StephenTetley
hurl570.01Haskell URL resolver (gpl, library, network, program)2023-03-232.3.0.1alcinnz
husk-scheme2062.03R5RS Scheme interpreter, compiler, and library. (compilers-interpreters, language, library, mit, program)2021-02-043.20JustinEthier
husky180.01A simple command line calculator. (console, program)2009-04-040.4MarkusDittrich
hutton (deprecated)50.01A program for the button on Reddit. (deprecated, mit, program, utility)2015-04-191.0.0fozworth
huttons-razor70.01Quick implemention of Hutton's Razor (bsd2, example, program)2015-05-270.1.1.0steshaw
hw-balancedparens790.010Balanced parentheses (bit, bsd3, data, data-structures, library, program, succinct-data-structures)2022-12-050.4.1.3newhoggy, haskellworks, GeorgeWilson
hw-ci-assist50.00CI Assistant for Haskell projects (bsd3, development, library, program)2019-04-040.1.0.0haskellworks
hw-dsv610.03Unbelievably fast streaming DSV file parser (bsd3, csv, data-structures, library, program, simd, succinct-data-structures, text)2024-01-100.4.1.2newhoggy, haskellworks, GeorgeWilson
hw-dump120.01File Dump (bit, bsd3, data, library, program)2020-04-140.1.1.0newhoggy, haskellworks
hw-eliasfano250.02Elias-Fano (bsd3, data, data-structures, library, program, succinct-data-structures)2022-03-250.1.2.1newhoggy, haskellworks
hw-ip820.03Library for manipulating IP addresses and CIDR blocks (bsd3, library, network, program)2022-03-192.4.2.1newhoggy, haskellworks, arbornetworks, dsturnbull
hw-json1072.05Memory efficient JSON parser (bsd3, data, library, program)2025-07-241.3.3.1newhoggy, haskellworks
hw-json-simd300.03SIMD-based JSON semi-indexer (bsd3, data, library, program)2025-07-240.1.1.3newhoggy, haskellworks
hw-json-simple-cursor170.02Memory efficient JSON parser (bsd3, data, library, program)2022-03-240.1.1.1newhoggy, haskellworks
hw-json-standard-cursor310.03Memory efficient JSON parser (bsd3, data, library, program)2022-03-240.2.3.2newhoggy, haskellworks
hw-mquery480.03Monadic query DSL (bsd3, data, library, program)2024-11-080.2.1.2newhoggy, haskellworks
hw-packed-vector260.02Packed Vector (bsd3, data, library, program, vector)2022-03-210.2.1.1newhoggy, haskellworks
hw-prim-bits (deprecated)280.00Primitive support for bit manipulation (bsd3, data, deprecated, library, program)2021-09-180.1.0.5newhoggy, haskellworks
hw-rankselect1252.014Rank-select (bit, bsd3, data, data-structures, library, program, succinct-data-structures)2022-03-230.13.4.1newhoggy, haskellworks, GeorgeWilson
hw-simd-cli30.00SIMD library (bit, bsd3, data, library, program, simd)2021-03-170.0.0.1newhoggy, haskellworks
hw-tar50.00Library for creating and extracting tar archives (bsd3, codec, library, program)2021-03-090.0.0.1haskellworks
hw-uri450.01Supports IO on URIs (bsd3, data, library, program)2020-03-120.2.1.0newhoggy, haskellworks
hw-xml602.251XML parser based on succinct data structures. (bsd3, data, data-structures, library, program, succinct-data-structures, xml)2024-01-100.5.1.2newhoggy, haskellworks
hwall-auth-iitk90.01Initial version of firewall Authentication for IITK network. (bsd3, network, program)2014-04-140.1.0.1satvikc
hwhile292.00An implementation of Neil D. Jones' While language (gpl, language, library, program)2019-03-070.1.1.6alexj136
hwk190.00Commandline text processing with Haskell functions (development, mit, program)2021-06-140.6JensPetersen
hwm202.00Haskell Workspace Manager - Orchestrates Stack, Cabal, and HLS (development, library, mit, program)2026-03-270.5.0nalchevanidze
hwormhole60.00magic-wormhole client (gpl, library, network, program)2019-03-290.2.0.1rkrishnan
hws70.01Simple Haskell Web Server (bsd3, program, web-server)2010-10-041.1.0.1SimonMarlow
hxmppc80.01Haskell XMPP (Jabber Client) Command Line Interface (CLI) (bsd3, network, program)2011-10-200.2.3NicolasPouillard
hxournal490.01A pen notetaking program written in haskell (application, bsd3, library, program)2012-09-030.6.6.1IanWooKim
hyahtzee80.01A Yahtzee game implementation in Haskell (bsd3, game, program)2021-04-180.5DamienCassou
hyakko320.01Literate-style Documentation Generator (documentation, mit, program)2015-06-030.6.7JeremyHull
hybrid40.01A implementation of a type-checker for Lambda-H (bsd3, compilers-interpreters, program)2008-03-042.0GwernBranwen
hydra-print160.02NCurses interface to view multiple ByteString streams in parallel. (bsd3, concurrency, library, program)2013-04-220.1.0.3RyanNewton
hydrogen-cli110.01Hydrogen Data (language, mit, program)2015-01-080.14JulianFleischer
hylide140.00WebGL live-coding environment for writing shaders with Hylogen (graphics, library, mit, program)2016-10-290.1.5.1sleexyz
hylotab140.01Tableau based theorem prover for hybrid logics (program, theorem-provers)2012-07-051.2.1GuillaumeHoffmann
hyloutils50.01Very small programs for hybrid logics (program, theorem-provers)2012-07-051.0GuillaumeHoffmann
hyper-haskell-server220.01Server back-end for the HyperHaskell graphical Haskell interpreter (bsd3, compilers-interpreters, program)2025-10-190.2.4.0HeinrichApfelmus
hyperbole510.01Interactive HTML apps using type-safe serverside Haskell (bsd3, library, network, program, web)2026-07-010.7.1seanhess
hyperdrive60.01a fast, trustworthy HTTP(s) server built (bsd3, library, program, web)2013-01-080.1JeremyShaw
hyperion50.00Reliable performance measurement with robust data export. (benchmarking, bsd3, library, program)2017-09-060.1.0.0MathieuBoespflug
hyperscript80.00A parser for the _hyperscript programming language (bsd3, library, program, web)2022-01-300.1.0.1rashad1030
hyraxAbif540.01Modules for parsing, generating and manipulating AB1 files. (ab1, abif, bioinformatics, chromatogram, library, program)2023-12-080.2.4.5andrevdm
hzaif60.00This package is Zaif Exchange Api wrapper (bsd3, library, program, web)2016-01-240.1.0.0
i3blocks-hs-contrib112.00Base i3blocks written in haskell (distribution, library, mit, program)2020-04-252.1.0panavtec
ib-api70.00An API for the Interactive Brokers Trading Workstation written in pure Haskell (gpl, library, network, program)2015-07-280.1.0.1rbermani
ical (deprecated in favor of iCalendar)132.00iCalendar format parser and org-mode converter. (bsd3, deprecated, library, program, web)2015-11-240.0.1ChrisDone
icepeak170.00A fast JSON document store with push notification support. (bsd3, library, program, web)2022-11-171.0.0.0fatho, rkrzr
ide-backend850.02An IDE backend library (development, library, mit, program)2016-01-060.10.0.1MichaelSloan, MichaelSnoyman
ide-backend-server190.01An IDE backend server (development, mit, program)2016-01-100.10.0.2MichaelSloan, MichaelSnoyman
ideas-math80.01Interactive domain reasoner for logic and mathematics (education, program)2015-04-091.2BastiaanHeeren
ideas-statistics60.00Interactive domain reasoner for statistics (apache, education, program)2020-04-031.0BastiaanHeeren
idiii320.01ID3v2 (tagging standard for MP3 files) library (bsd3, library, program, sound, text)2012-11-040.1.3.3AlexeyAlekhin, BartonMassey, ChrisWagner
idnaparse40.00IDNA-aware DNS-name lint and reporter (bsd3, network, program)2026-07-031.0.0.0ietfdane
idringen130.00A project manage tool for Idris. (bsd3, development, library, program)2016-08-240.1.0.3zjhsdtc
idris4412.251Functional Programming Language with Dependent Types (bsd3, compilers-interpreters, dependent-types, library, program)2021-10-221.3.4EdwinBrady, niklasl
ige41.251An keyboard-driven interactive graph editor (editing, gpl, program)2017-09-110.1.0.0olynch
ignore111.51Handle ignore files of different VCSes (bsd3, library, program, system)2015-08-230.1.1.0AlexanderThiemann
ihaskell1192.521A Haskell backend kernel for the Jupyter project. (development, library, mit, program)2025-11-150.13.0.0gibiansky, VaibhavSagar
ihaskell-dataframe60.00 (bsd3, library, program, unclassified)2025-11-170.1.0.0mchav
ihp-datasync-typescript70.00TypeScript code generation for IHP DataSync (database, library, mit, program)2026-03-251.5.0MarcScholten
ihp-ide270.01Dev tools for IHP (ihp, library, mit, program, web)2026-05-131.5.1MarcScholten
ihp-migrate70.01Provides the IHP migrate binary (database, library, mit, program)2026-04-011.5.0MarcScholten
ihp-schema-compiler50.01Lightweight schema compiler for IHP (ihp, library, mit, program, web)2026-03-251.5.0MarcScholten
ihs190.01Interpolated Haskell (language, program, public-domain)2018-12-120.1.0.3minad
ihttp (deprecated)220.01Incremental HTTP iteratee (bsd3, deprecated, library, network, program)2011-06-150.3.0ErtugrulSoeylemez, esz
imagepaste60.01Command-line image paste utility (bsd3, network, program)2012-05-300.2.0.1YuriBochkarev
imapget150.01Downloads email from imap SSL servers. (bsd3, network, program)2013-01-080.0.3FacundoDominguez
imbib80.01Minimalistic .bib reference manager. (library, program, text)2024-02-081.2.5JeanPhilippeBernardy
imgurder110.01Uploader for Imgur (bsd3, library, program, web)2011-10-271.2DanColish
imj-base62.02Game engine with geometry, easing, animated text, delta rendering. (algorithms, animation, bsd3, game-engine, graphics, library, mathematics, optimisation, optimization, program, terminal, user-interface)2018-01-010.1.0.2OlivierSohn
imj-game-hamazed72.00A game with flying numbers and 8-bit color animations. (animation, application, bsd3, education, game, graphics, library, program)2018-01-010.1.0.2OlivierSohn
imj-measure-stdout40.01An application to determine the maximum capacity of stdout buffer. (bsd3, console, program, terminal)2018-01-010.1.0.2OlivierSohn
imm1060.01Execute arbitrary actions for each item from RSS/Atom feeds (library, program, public-domain, web)2024-09-222.1.3.0koral
immutaball-core30.00Immutaball platformer game (prototype version) (games, library, program)2025-07-170.1.0.5.1ByronJohnson
imparse110.01Multi-platform parser analyzer and generator. (gpl, library, program, text)2013-08-200.0.0.3AndreiLapets
importify120.00Tool for haskell imports refactoring (development, library, mit, program, refactoring)2017-12-231.0.1serokell
inch60.01A type-checker for Haskell with integer constraints (bsd3, language, program)2014-06-070.2.0AdamGundry
indent140.00Fix your indentation. (bsd3, indentation, library, program, text)2019-06-120.0.5vapourismo
indigo350.00Convenient imperative eDSL over Lorentz. (language, library, mit, program)2023-03-310.6.0gromak, pasqu4le, serokell, rinn7e
infer-upstream40.01Find the repository from where a given repo was forked (development, mit, program)2014-08-150.1.1.0NoonSilk
inferno-lsp40.00LSP for Inferno (dsl, ide, library, mit, program, scripting)2022-11-290.1.0sidk
infernu160.01Type inference and checker for JavaScript (experimental) (gpl, library, program, unclassified)2015-04-180.0.0.1NoamLewis
infinity70.01 (bsd3, program, unclassified)2007-11-070.3AustinSeipp
informative560.01A yesod subsite serving a wiki. (agpl, library, program, web)2016-04-040.1.0.27implementation
inject50.01A minimalistic template engine (library, mit, program, text)2013-06-090.1.0SimonHengel
inliterate82.02Interactive literate programming (library, mit, program, statistics)2017-06-060.1.0glutamate, ocramz
inquire40.01Console client for encyclopedias (gpl, program, web)2014-01-080.1orbifx
inspection-proxy130.01A simple proxy for debugging plaintext protocols communication (bsd3, program, testing)2014-03-300.1.0.3MariusGhita
inspector-wrecker50.00Create benchmarks from the HAR files (bsd3, library, program, web)2016-09-190.1.0.0JonathanFischoff
instana-haskell-trace-sdk522.00SDK for adding custom Instana tracing support to Haskell applications. (library, mit, monitoring, program)2023-05-240.10.2.0basti1302, pvital
instapaper-sender110.01Basic HTTP gateway to save articles to Instapaper (agpl, program, web)2017-02-030.1.0.2MichaelSmith
integreat50.00Integrate different assays. (bioinformatics, gpl, library, program)2018-05-160.2.2.1GregorySchwartz
intel-powermon80.00Poll modern Intel/AMD CPU power consumption on Linux via RAPL. (agpl, cli, linux, program)2023-08-180.0.1SergeyAlirzaev
intelli-monad280.00Type level prompt with LLMs via louter. (development, library, mit, program)2026-05-050.1.3.0junjihashimoto
interactive-plot42.00Interactive quick time series plotting (bsd3, interactive, library, program)2019-09-090.1.0.0jle
interleavableGen50.01Generates a version of a module using InterleavableIO (monads, program)2008-07-230.0.1MarcoSilva
internetmarke190.01Shell command for constructing custom stamps for German Post (console, graphics, program)2023-01-150.0.4HenningThielemann
intero1372.01Complete interactive development program for Haskell (bsd3, development, program)2019-05-140.1.40AnthonyCowley, ChrisDone
interp80.00Tracery-like randomized text interpolation (bsd3, interpolation, library, program, text)2019-02-181.0.0.2swizzard
interpol150.01GHC preprocessor and library to enable variable interpolation in strings (gpl, language, library, program, source-tools)2012-06-220.2.3AlexandruScvortov
interval-algebra1020.01An implementation of Allen's interval algebra for temporal logic (algebra, bsd3, library, program, time)2023-05-262.2.0brendanrbrown
inventory130.00Project statistics and definition analysis (bsd3, library, program, utility)2023-03-180.1.0.4aaronallen8455
io-manager252.01Skeleton library around the IO monad. (bsd3, library, program, training)2023-02-200.1.0.4MihaiMaruseac
io-reactive70.02An API for generating TIMBER style reactive objects. (bsd3, control, library, program, reactivity)2008-09-230.1.1AndyGill
ion70.01EDSL for concurrent, realtime, embedded programming on top of Ivory (bsd3, embedded, language, library, program)2016-09-231.0.0.0hodapp
ip6addr650.01Commandline tool to deal with IPv6 address text representations (bsd3, cli, network, program)2026-06-112.0.1.0MichelBoucey
ipatch62.01interactive patch editor (development, gpl, program)2012-04-150.1.1JoachimBreitner
ipedb380.03Build databases with IPE data (bsd3, development, library, program)2026-07-170.2.0.1wenkokke, fendor
iptables-helpers120.01iptables rules parser/printer library (bsd3, library, program, text)2013-05-190.5.0EvgenyTarasov
iptadmin260.01web-interface for iptables (application, bsd3, program, system, tools, web)2013-05-191.3.4EvgenyTarasov
ircbot852.02A library for writing IRC bots (bsd3, library, network, program)2023-12-140.6.6.2JeremyShaw
iridium320.00Automated Local Cabal Package Testing and Uploading (bsd3, development, library, program)2018-10-030.1.5.8lspitzner
ironforge590.02A technical demo for Antisplice. (bsd3, game, library, program)2016-04-040.1.0.36implementation
isdicom100.01An executable and library to determine if a file is a DICOM file (bsd3, library, medical, program, system)2014-09-090.0.2TonyMorris
isiz50.01A program to show the size of image and whether suitable for wallpaper. (bsd3, graphics, program)2014-04-150.0.1HironaoKomatsu
isocline590.02A portable alternative to GNU Readline (console, library, mit, program)2026-04-211.1.0daan
itcli40.01Issue Tracker for the CLI (bsd3, development, program)2018-09-140.1.8.3theNerd247
iterm-show70.02Enable graphical display of images inline on some terminals (bsd3, development, library, program)2018-10-100.1.0.1lukec
ivory-bitdata (deprecated in favor of ivory)50.02Ivory bit-data support. (bsd3, deprecated, language, library, program)2014-03-260.2.0.0EricMertens, LeePike
ivory-examples240.01Ivory examples. (bsd3, language, program)2016-12-160.1.0.5EricMertens, LeePike
ixdopp150.01A preprocessor for expanding "ixdo" notation for indexed monads (bsd3, language, program, source-tools)2013-01-230.1.3JesseTov
iyql240.01CLI (command line interface) to YQL (gpl, network, program)2010-09-220.0.7DiegoSouza
j2hs240.01j2hs (ffi-tools, foreign, java, jvm, mit, program)2013-06-240.99.1JulianFleischer
jacinda662.250Functional, expression-oriented data processing language (agpl, data, interpreters, language, library, program, text)2026-03-153.3.0.6vmchale
jaeger-flamegraph222.01Generate flamegraphs from Jaeger .json dumps. (bsd3, library, program, testing)2019-07-261.3.2fommil
jailbreak-cabal410.01Strip version restrictions from Cabal files (bsd3, distribution, program)2025-01-021.4.1PeterSimons, sternenseemann, jophish, cdepillabout, maralorn, expipiplus1
jammittools630.01Export sheet music and audio from Windows/Mac app Jammit (gpl, library, program, sound)2019-04-130.5.5.2mtolly
jarfind210.01Tool for searching java classes, members and fields in classfiles and JAR archives (development, language, library, program, utils)2012-10-300.1.0.3EugeneKirpichov
jarify40.00Jarification of Haskell sources (bsd3, ffi, java, jvm, library, program)2017-04-211.0MathieuBoespflug, FelixRaimundo
jason80.00A fast JASONETTE-iOS JSON combinator library for haskell. (bsd3, library, program, value)2016-11-100.1.0.1Lupino
java-adt500.01Create immutable algebraic data structures for Java. (java, program)2026-01-121.1AndreasAbel
java-poker110.00The etude of the Haskell programming (game, library, mit, program)2016-01-130.1.2.0tobynet
javascript-bridge60.01Remote Monad for JavaScript on the browser (bsd3, library, network, program)2019-09-120.2.0AndyGill
javascript-extras280.02Extra javascript functions when using GHCJS (bsd3, library, program, web)2018-07-020.5.0.0louispan
javasf20.01A utility to print the SourceFile attribute of one or more Java class files. (bsd3, development, program)2014-05-240.1.0TonyMorris
javav80.01A utility to print the target version of Java class files. (bsd3, development, program)2014-05-230.1.1TonyMorris
javelin232.01Labeled one-dimensional arrays (data, data-science, data-structures, library, mit, program)2025-03-020.1.4.2LaurentRDC
jbi100.00Just Build It - a "do what I mean" abstraction for Haskell build tools (development, library, mit, program)2018-02-070.2.0.0IvanMiljenovic
jdi60.01Implementation of Java Debug Interface (debug, gpl, jvm, language, library, program)2012-10-280.0.3VictorDenisov
jenga (deprecated)112.00Generate a cabal freeze file from a stack.yaml (bsd2, deprecated, development, library, program)2017-05-130.1.1.0ErikDeCastroLopo
jenkinsPlugins2nix190.00Generate nix for Jenkins plugins. (bsd3, library, nix, program)2021-08-160.5.0.0MateuszKowalczyk, ThomasBach, thymythos
jespresso130.01Extract all JavaScript from an HTML page and consolidate it in one script. (bsd3, library, program, web)2015-06-221.0.2AndreyChudnov
jet90.00 (bsd3, library, program, unclassified)2021-12-060.0.0.2ChrisPenner
jev90.00Typed decisions with Jev through TypeSafe and OpenRouter (library, mit, program, web)2026-09-260.1.1.0yngman
jinquantities92.01Unit conversion and manipulation library. (bsd3, data, library, math, physics, program)2018-09-120.1.1Novadiscovery
jira-wiki-markup1560.01Handle Jira wiki markup (library, mit, program, text)2023-03-131.5.1tarleb
jl50.00Functional sed for JSON (bsd3, development, library, program)2022-05-170.1.0ChrisDone
jmacro1412.017QuasiQuotation library for programmatic generation of Javascript code. (bsd3, language, library, program)2023-03-220.6.18GershomBazerman, JeremyShaw
jord392.00Geographical Position Calculations (bsd3, geography, library, program)2020-09-212.0.0.0CedricLiegeois
jort50.01JP's own ray tracer (graphics, program)2010-11-101.0.0JeanPhilippeBernardy
jot (deprecated in favor of shakebook)110.01Tiny markdown notebook (cli, deprecated, program)2018-04-050.1.0.3locallycompact
jpl-horizons-api170.00Ephemerides for solar system objects from the JPL Horizons service (api, astronomy, bsd3, library, program)2022-03-120.4.0.0ocramz
jsaddle-hello250.01JSaddle Hello World, an example package (library, mit, program, web)2025-04-232.0.0.2HamishMackenzie
json-autotype2902.55Automatic type declaration for JSON input data (bsd3, data, library, program, tools, type-provider)2020-04-193.1.2MichalGajda, PeterSimons
json-b260.03JSON parser that uses byte strings. (bsd3, library, program, text)2009-10-010.0.4JasonDusek
json-directory100.00Load JSON from files in a directory structure (bsd3, codec, library, program)2024-07-260.1.0.3lukec
json-rpc1062.255Fully-featured JSON-RPC 2.0 library (library, mit, network, program, public-domain)2026-08-181.1.3jprupp
json-to-haskell120.00 (bsd3, library, program, unclassified)2020-11-090.1.1.2ChrisPenner
json-to-type50.00Automatic type declaration for JSON input data (bsd3, data, library, program, tools)2024-09-264.0.1Jappie
json-tools260.01A collection of JSON tools (bsd3, json, program, text, tools, utils)2019-10-180.5.1NicolasPouillard
json2sg80.00Lossy conversion from JSON to Sugar (configuration, library, program, text)2022-07-290.0.1jxv
json2yaml (deprecated in favor of yaml)450.01Utility to convert a file from JSON to YAML format. (deprecated) (bsd3, deprecated, program, web)2014-04-030.3.2.3MichaelSnoyman
jsonextfilter50.01Filter select values in JSON objects to unix programs (mit, program, web)2017-03-210.1.0.0mackeyrms
jsonnet140.00Jsonnet implementaton in pure Haskell (bsd3, compiler, library, program)2025-04-090.4.0.0moleike
jsons-to-schema40.00JSON to JSON Schema (data, json, library, mit, program, web)2017-07-300.1.0.0garetht
jsonsql90.01Interpolate JSON object values into SQL strings (mit, program, text)2015-08-280.1.2.1DanielChoi
jsontsv560.01JSON to TSV transformer (mit, program, text)2016-05-190.1.7.0DanielChoi
jsonxlsx70.01json to xlsx converter (mit, program, text)2017-03-200.1.0.1mackeyrms
juandelacosa110.01Manage users in MariaDB >= 10.1.1 (databases, mit, program, web)2021-03-170.1.2ip1981
judge50.00Tableau-based theorem prover for justification logic. (gpl, library, logic, program)2018-03-140.1.3.0slakkenhuis
juicy-draw110.00Draw and fill lines, rectangles and polygons (graphics, library, mit, program)2018-12-200.2.0.0rcook
juicy-gcode700.01SVG to G-Code converter (bsd3, graphics, program)2023-05-291.0.0.0dlacko
jukebox1332.01A first-order reasoning toolbox (bsd3, library, logic, program)2026-08-190.5.15NickSmallbone
jumpthefive70.01an elementary symmetric chiffre for pragmatically protecting one's effects (bsd3, cryptography, library, program)2015-04-110.0.1mcandre
jupyter30.00A library for creating and using Jupyter kernels. (development, library, mit, program)2016-08-140.9.0gibiansky
kafka-device240.05UI device events via a Kafka message broker (hardware, library, mit, program)2019-03-041.0.2.1BrianBush
kafka-device-glut160.01GLUT events via a Kafka message broker (hardware, library, mit, program)2019-03-041.0.2.1BrianBush
kafka-device-joystick170.01Linux joystick events via a Kafka message broker (hardware, library, mit, program)2019-03-041.0.2.1BrianBush
kafka-device-leap100.01Leap Motion events via a Kafka message broker (hardware, library, mit, program)2019-03-041.0.2.1BrianBush
kafka-device-spacenav170.01Linux SpaceNavigator events via a Kafka message broker (hardware, library, mit, program)2019-03-041.0.2.1BrianBush
kafka-device-vrpn150.01VRPN events via a Kafka message broker (library, mit, network, program)2019-03-041.0.2.1BrianBush
kaleidoscope20.01Haskell Kaleidoscope tutorial (compilers, library, mit, program)2016-08-120.1.0.0sdiehl
katt150.01Client for the Kattis judge system. (bsd3, library, program, utils)2014-06-130.2.0.3DavidNilsson
katydid380.00A haskell implementation of Katydid (bsd3, data, library, program)2018-09-100.4.0.2awalterschulze
kawa40.00Key-value store in single files. (bsd3, database, library, program)2018-01-150.1.0.0thoferon
kb-text-shape170.03Unicode segmentation and shaping using kb_text_shape (bsd3, font, library, program)2026-08-150.2.1.0AlexanderBondarenko
kbq-gu60.01Rpoku spoken word programming language (language, program)2008-08-140.2AndriiZvorygin
kdesrc-build-extra (deprecated in favor of kdesrc-build-profiles)110.01Build profiles for kdesrc-build (deprecated, development, gpl, program)2016-04-050.1.1ivan
kdesrc-build-profiles60.00Build profiles for kdesrc-build (development, gpl, program)2020-05-270.2.0ivan
kdl-hs192.01KDL language parser and API (bsd3, library, program, text)2026-08-251.2.1brandonchinn178
keccak140.00cryptographic functions based on the sponge construction (crypto, library, mit, program)2018-07-200.2.0aupiff
keel130.00Umbrella for the keel capability floor: doctor, setup (data-science, library, mit, program)2026-09-030.1.1.0azng_0
keenser40.01Initial project template from stack (bsd3, library, program, web)2016-07-070.1.0.0jdabbs
keera-posture300.01Get notifications when your sitting posture is inappropriate. (ai, program)2017-06-150.2.4.3IvanPerez, keera_studios_ci
keiretsu60.01Multi-process orchestration for development and integration testing (development, program, testing)2014-10-200.4.4BrendanHay
keiro-dsl1570.00Typed specification toolchain for keiro services (bsd3, development, library, program)2026-11-050.24.0.0shinzui
keiro-migrations850.04Schema migrations for keiro (bsd3, database, library, program)2026-11-050.24.0.0shinzui
keiro-ops760.01Operational command-line interface for Keiro deployments (bsd3, library, operations, program)2026-11-050.24.0.0shinzui
keiro-ops-http90.00Bounded HTTP transport for the Keiro operational command tree (bsd3, library, operations, program)2026-11-050.24.0.0shinzui
kempe562.00Kempe compiler (bsd3, compilers, language, library, program)2024-05-290.2.0.14vmchale
keter2482.251Web application deployment manager, focusing on Haskell web frameworks. It mitigates downtime. (library, mit, program, web, yesod)2026-05-262.3.6MichaelSnoyman, ChristopherReichert, Jappie, jgt
kevin910.01a dAmn ↔ IRC proxy (program, utils)2013-08-310.11.0JoelTaylor
kewar122.00CLI and library to generate QR codes. (data, library, mit, program, qr)2022-02-120.1.1.1shikaan
keycloak-hs610.00 (bsd3, library, program, unclassified)2023-10-223.0.2CorentinDupont
keymapp70.00gRPC client for the Keymapp API (bsd3, control, library, program)2026-06-250.1.0fpringle
keysafe490.01back up a secret key securely to the cloud (agpl, program, utility)2020-02-140.20200214JoeyHess
keystore920.01Managing stores of secret things (bsd3, cryptography, library, program)2023-10-140.9.0.2ChrisDornan
keyword-args200.01Extract data from a keyword-args config file format (data, library, mit, program)2015-04-230.2.0.2jsl, stackbuilders, sestrella
khph70.01Command-line file tagging and organization tool (agpl, program, system)2016-06-110.1.0khumba
kif-parser40.01Process KIF iOS test logs (bsd3, distribution, program)2013-08-290.0.3JanChristiansen
kioku-cli1260.00kioku command-line interface (bsd3, data, library, program)2026-11-080.13.0.0shinzui
kioku-migrate1200.00The kioku schema migration entry point (bsd3, database, program)2026-11-080.13.0.0shinzui
kiroku-cli870.01Embeddable operator CLI for Kiroku (bsd3, database, eventing, library, program)2026-10-310.3.0.1shinzui
kiroku-metrics750.00Metrics, health, and event-streaming HTTP endpoints for Kiroku (bsd3, database, eventing, library, observability, program)2026-10-280.4.0.1shinzui
kiroku-store-migrations750.03Schema migrations for kiroku-store (bsd3, database, eventing, library, program)2026-10-280.7.3.0shinzui
kit1090.01A dependency manager for Xcode (Objective-C) projects (bsd3, development, program)2013-02-060.7.12NickPartridge
kitchen-sink100.00Static-site generator, dev server and API gateway (bsd3, library, program, web)2026-10-230.2.0.0LucasDiCioccio
kmeans-vector110.01An implementation of the kmeans clustering algorithm based on the vector package (bsd3, library, math, program)2015-07-300.3.2AlpMestanogullari
kmn-programming50.00K_M,N quadratic programming (bsd3, math, program)2021-12-200.9.2PeterDivianszky
kmonad142.250Advanced keyboard remapping utility (application, library, mit, program)2026-05-030.4.5david_janssen, TonyZorman
knots100.01Khovanov homology computations (library, math, mit, program)2015-04-090.1.0.1maltem
koji-install (deprecated in favor of koji-tool)150.00CLI tool for installing rpms directly from Fedora Koji (bsd3, deprecated, program, utility)2021-12-280.5JensPetersen
koji-tool710.00Koji CLI tool for querying tasks and installing builds (bsd3, program, utility)2025-12-231.3.1JensPetersen
koneko40.00a concatenative not-quite-lisp for kittens (compilers-interpreters, gpl, library, program)2022-02-120.0.2obfusk
korfu110.01The Korfu ORF Utility (bioinformatics, program)2010-09-100.2KetilMalde
kparams50.00Extracts values from /proc/cmdline. (library, mit, program, text)2021-09-090.1.0.1mcsaucy
krank190.00Krank checks issue tracker link status in your source code (bsd3, library, program, quality)2025-12-070.3.1guibou
kudzu82.250coverage driven random testing framework (bsd3, library, program, testing)2024-04-270.1.1.0ShaeErisson
kurita90.00Find the alpha emoji (bsd3, game, library, program, web)2019-05-060davean
laborantin-hs260.01an experiment management framework (apache, experiment, library, program)2014-04-180.1.5.2LucasDiCioccio
labsat140.00LabSat TCP Interface Wrapper (library, mit, program, unclassified)2018-03-090.0.5bb
labyrinth-server170.01A complicated turn-based game - Web server (game, mit, program)2013-11-230.1.4.1AlexeyKotlyarov
lambda32.00Interpreters for lambda calculus, calculus of constructions, and more (compilers-interpreters, mit, program)2022-07-280.1.0.0OwenBechtel
lambda-bridge70.01A bridge from Haskell (on a CPU) to VHDL on a FPGA. (bsd3, foreign, hardware, library, middleware, network, program)2010-11-160.1AndyGill
lambda-calculator350.00A lambda calculus interpreter (lambdacalculus, language, library, mit, program, teaching)2023-03-013.1.1.0sgillespie
lambda-calculus-interpreter150.00Lambda Calculus interpreter (bsd3, language, library, program)2018-09-120.1.0.3xeontem
lambda-devs70.01a Paralell-DEVS implementaion based on distributed-process (bsd3, control, library, program, simulation)2013-11-240.4.0alios
lambda-toolbox100.01An application to work with the lambda calculus (for learning) (bsd3, lambdacalculus, program, teaching)2013-03-301.0.1JulianFleischer
lambda2js81.51Untyped Lambda calculus to JavaScript compiler (compiler, gpl, program)2015-09-270.1.0.1MatejKollar
lambdaFeed60.01RSS 2.0 feed generator (program, web)2007-02-130.3.1DonaldStewart
lambdaLit80.01... (language, mit, program)2014-12-180.1.1.0faleidel
lambdabot1112.01Lambdabot is a development tool and advanced IRC bot (development, program, web)2023-11-105.3.1.2BertramFelgenhauer, DmitryMalikov, GwernBranwen, IsaacJones, JamesCook, ncfavier
lambdabot-telegram-plugins90.00Lambdabot for Telegram (development, gpl, library, program, web)2022-09-240.2.1swamp_agr
lambdabot-xmpp200.00Lambdabot plugin for XMPP (Jabber) protocol (development, program)2025-02-100.1.0.6SergeyAlirzaev
lambdabot-zulip50.00Lambdabot for Zulip Chat (library, mit, program, web)2018-11-200.1.0NiklasHambuechen
lambdacat60.01Webkit Browser (bsd3, library, program, user-interfaces)2011-01-080.1.1AndreasBaldeau
lambdacube110.01A simple lambda cube type checker. (bsd3, compilers-interpreters, program)2008-12-252008.12.25LennartAugustsson
lambdacube-examples (deprecated in favor of lambdacube-samples)330.01Examples for LambdaCube (bsd3, deprecated, graphics, program)2011-10-290.2.2CsabaHruska
lambdacube-samples100.01Samples for LambdaCube 3D (bsd3, graphics, program)2014-12-090.2.0CsabaHruska
lambdasound200.00A libary for generating low-level sounds with high-level combinators (library, mit, program, sound)2025-05-311.2.1voyager
lambdatwit70.01Lambdabot running as a twitter bot. Similar to the @fsibot f# bot. (mit, program, web)2014-10-130.1.0.0aaronash
lambdiff40.01Diff Viewer (bsd3, development, program)2011-11-170.1JamieTurner
language-Modula2530.00Parser, pretty-printer, and more for the Modula-2 programming language (gpl, language, library, program)2025-11-090.1.5MarioBlazevic
language-asn1140.01Parsing of ASN1 definitions (bsd3, language, library, program)2020-06-140.6DmitryAstapov
language-dickinson1132.00A language for generative literature (bsd3, compilers-interpreters, language, library, program, text)2024-05-291.4.3.1vmchale
language-glsl310.06GLSL abstract syntax tree, parser, and pretty-printer (bsd3, graphics, language, library, program)2018-09-020.3.0VoMinhThu
language-lustre30.00A parser and AST for the Lustre language. (development, library, program)2026-07-061.0.0IavorDiatchki, galoisinc, aschwerdfeger_galois
language-mixal30.01Parser, pretty-printer, and AST types for the MIXAL assembly language (bsd3, language, library, program)2013-08-250.1JonathanDaugherty
language-ninja32.00A library for dealing with the Ninja build language. (apache, build, language, library, program)2017-08-020.2.0taktoa
language-oberon360.01Parser, pretty-printer, and more for the Oberon programming language (gpl, language, library, program)2026-01-160.3.4.1MarioBlazevic
language-openscad230.01A simple parser for OpenSCAD (bsd3, language, library, program)2016-04-130.1.7BenGamari, BrechtSerckx
language-puppet2512.02Tools to parse and evaluate the Puppet DSL. (bsd3, library, program, system)2023-11-071.5.1SimonMarechal, pi3r
language-python-colour80.01Generate coloured XHTML for Python code. (bsd3, language, program)2009-11-040.1BerniePope
language-python-test250.01testing code for the language-python library (bsd3, language, program)2020-07-120.5.8BerniePope
language-toolkit190.00A set of tools for analyzing languages via logic and automata (formal-languages, library, mit, program)2025-08-141.3.0.0dakotah_lambert
lapack-ffi-tools270.01Generator for Haskell interface to Fortran LAPACK (bsd3, math, program)2025-04-030.1.3.2HenningThielemann
lat70.01Tool to track security alerts on LWN (gpl, program, utils)2011-05-130.6MagnusTherning
latest-npm-version110.01Find the latest version of a package on npm (library, mit, network, program)2014-05-190.3.1passy
latex-formulae-pandoc340.01Render LaTeX formulae in pandoc documents to images with an actual LaTeX installation (bsd3, image, library, program)2018-07-220.2.0.6LiamOConnorDavis
latex-function-tables60.00Function table specifications in latex (bsd3, library, program, text)2016-11-210.1.0.0SimonHudon
latex-live-snippets40.01Automatically inline Haskell snippets into LaTeX documents. (bsd3, program, system)2018-07-110.1.0.0isovector
latex-svg-pandoc80.01Render LaTeX formulae in pandoc documents to images with an actual LaTeX (bsd3, image, library, program)2020-05-100.2.1phadej
launchpad-control50.01High and low-level interface to the Novation Launchpad midi controller. (bsd3, library, music, program, system)2013-10-090.0.1.0BalazsKomuves
layered-graph-drawing100.00Layered Graph Drawing after Sugiyama (bsd3, graphics, graphs, library, program)2024-12-100.2.0.0TillmannVogt
layers-game450.01A prototypical 2d platform game. (bsd3, game, program)2024-06-020.8.0DanielTrstenjak
layoutz711.50Simple, beautiful CLI output (apache, library, program, text)2026-07-120.4.0.0mattlianje
lazy-csv130.05Efficient lazy parsers for CSV (comma-separated values). (bsd3, library, program, text)2015-06-250.5.1MalcolmWallace
lazy-priority-queue140.00Lazy-Spined Monadic Priority Queues (control, data, gpl, library, program)2021-02-180.1.1MarioBlazevic
ldap-scim-bridge290.00See README for synopsis (agpl, library, program, system)2024-11-290.10PaoloCapriotti, MatthiasFischmann, battermann, supersven
ldapply70.01LDIF idempotent apply tool (mit, network, program, text)2017-01-120.2.0ip1981
leaf90.01A simple portfolio generator (gpl, program, web)2013-02-181.0.1.1DimitriSabadie
leaky460.01Robust space leak, and its strictification (bsd3, program, testing)2015-02-040.4.0.0AndrewSeniuk
learn-physics642.01Haskell code for learning physics (bsd3, library, physics, program)2024-05-140.6.7ScottWalck
learn-physics-examples (deprecated in favor of learn-physics)210.01examples for learn-physics (bsd3, deprecated, physics, program)2014-06-030.5.0.1ScottWalck
leetify70.01Leetify text (bsd3, program, text)2014-10-040.1.0.1DimitriSabadie
left4deadrl80.01left4dead-inspired roguelike (bsd3, math, program)2018-04-060.0.2AndrewPennebaker
legion-discovery (deprecated)380.00A discovery service based on Legion. (apache, deprecated, library, program, value)2017-04-301.0.0.1rickowens
leksah2380.01Haskell IDE written in Haskell (development, editor, ide, library, program)2017-08-140.16.2.2HamishMackenzie, JuergenNicklischFranken
leksah-server1220.02Metadata collection for leksah (ide, library, program)2017-11-040.16.3.0HamishMackenzie, JuergenNicklischFranken
lens-th-rewrite70.00Rewrites Template Haskell splices using the API (bsd3, data, library, program)2020-04-050.3.0.0DavidJohnson
lentil2212.51frugal issue tracker (development, gpl, program, project-management)2025-11-201.5.10.0fffaaa, lwm
lesspass50.00The Stateless Password Manager (cryptography, gpl, program)2026-01-091.0.0.1dangarbri
lfudacaching100.00Pure LFUDA, GDSF, and LFU cache implementations (apache, data, library, program)2026-03-070.1.0.1philippedev101
lgtk (deprecated)670.01Lens GUI Toolkit (bsd3, deprecated, gui, library, program)2014-05-180.8.0.4PeterDivianszky
lhae (deprecated)120.01Simple spreadsheet program (data, deprecated, program)2010-09-280.0.3AlexanderBau
lhs2TeX-hl560.01Literate highlighter preprocessor for lhs2tex (development, language, mit, program)2011-10-150.1.4.5AlessandroVermeulen
lhs2html170.01Compile lhs in bird style to md, html, hs. (development, program, public-domain)2015-03-220.999999JulianFleischer
lhs2tex762.01Preprocessor for typesetting Haskell sources with LaTeX (development, gpl, language, program)2025-12-301.26AndresLoeh
lhslatex20.01Tool for using pdflatex with .lhs files (bsd3, program, unclassified)2014-04-160.1.0.0TvH
libhbb170.01Backend for text editors to provide better Haskell editing support. (development, lgpl, library, program)2014-10-300.4.1.0wolfch
libmdbx300.00Bindings for libmdbx, an embedded key/value store (bsd3, database, library, program)2022-01-200.2.1.1fjvallarino
liboath-hs170.00Bindings to liboath (gpl, library, program, security)2020-10-260.0.1.2parsonsmatt
libraft (deprecated)210.00Raft consensus algorithm (bsd3, deprecated, distributed-systems, library, program)2019-03-200.5.0.0sdiehl
librarian120.00Move/rename according a set of rules (data, library, program)2026-10-050.2.0.1gdifolco
libremidi170.00libremidi bindings for haskell (bsd3, library, program, unclassified)2025-01-080.4.2ejconlon
libriscv30.00A versatile, flexible and executable formal model for the RISC-V architecture. (formal-languages, library, mit, program)2024-07-100.1.0.0nmeum
libroman461.51Use Roman Numerals as a Numeric Datatype (sort of) (bsd3, data, library, math, numerical, program)2024-08-223.2.0ahakki
libzfs160.01Bindings to libzfs, for dealing with the Z File System and Zpools. (library, mit, program, system)2017-03-020.2.0.0implementation
licensor220.00A license compatibility helper (distribution, library, mit, program)2021-05-300.5.0jpvillaisaza
lie50.00Lie Algebras (bsd3, library, math, program)2019-06-080.1.0.0jumper149
life80.01Conway's Life cellular automaton (bsd3, game, program)2009-12-210.1ChuckAdams
life-sync132.250Synchronize personal configs across multiple machines. (cli, cli-tool, configuration, development, library, mpl, program)2020-05-211.1.1.0vrom911
lifter30.01A boulderdash-like game and solution validator (bsd3, games-, program)2012-09-110.1EdwinBrady
lightstep-haskell830.00LightStep OpenTracing client library (apache, library, program, tools)2020-10-090.10.4DmitryIvanov
limcalc60.00Limit-based symbolic calculus engine via log-Puiseux series (library, math, mit, program)2026-07-070.1.0.0penny4nonsense
linden51.250Zen gardening, based on l-systems (bsd3, library, program, web)2017-05-010davean
line-break70.01Convert newlines in text (gpl, program, text)2017-01-150.1.0.1AlanHawkins
line-size50.01Display the number of bytes of each line (data, gpl, program)2017-03-270.1.0.0AlanHawkins
line2pdf200.01Simple command-line utility to convert text into PDF (bsd3, library, program, text)2008-07-210.0.7AudreyTang
linear-algebra-cblas30.02A linear algebra library with bindings to BLAS and LAPACK (bsd3, library, math, program)2013-04-180.1CarterSchonwald
linear-maps (deprecated)150.01Finite maps for linear use (bsd3, data, deprecated, library, program)2009-05-280.6.1PeterDivianszky, ZsoltDollenstein
linenoise230.01A lightweight readline-replacement library for Haskell (bsd3, library, program, user-interfaces)2026-06-090.7.0ejconlon
lingo310.01File extension based programming language detection (bsd3, data, library, program)2022-03-040.5.0.3patrick_thomson, tclem, robrix, rewinfrey
linkcheck60.00Check for broken links in CI (library, mit, program, unclassified)2026-03-080.3.0.0Norfair
linkchk50.01linkchk is a network interface link ping monitor. (program, system)2008-02-170.0.2GwernBranwen
linkcore90.01Combines multiple GHC Core modules into a single module (bsd3, language, program)2010-05-250.4.1TimChevalier
linux-perf50.01Read files generated by perf on Linux (bsd3, debug, development, ghc, library, profiling, program, trace)2012-11-030.3MikolajKonarski
linx-gateway50.01Implementation of the Enea LINX gateway protocol. (library, mit, network, program)2014-08-040.1.0.2PatrikSandahl
lio-simple300.01LIO support for the Simple web framework (lgpl, library, program, web)2014-04-200.0.2.2DeianStefan
liquid-fixpoint2270.05Predicate Abstraction-based Horn-Clause/Implication Constraint Solver (bsd3, language, library, program)2021-11-03AlfredoDiNapoli, AndresLoeh, EricSeidel, FacundoDominguez, ranjitjhala, niki, clayrat
liquidhaskell-cabal-demo140.01Demo of Liquid Haskell integration for Cabal and Stack (development, library, program)2019-05-300.2.1.1MichaelSmith
list-remote-forwards140.01List all remote forwards for mail accounts stored in a SQL database. (agpl, mail, program, utils)2024-05-151.8.7MichaelOrlitzky
liszt120.00Append only key-list database (bsd3, database, library, program)2018-09-110.2FumiakiKinoshita
lit280.01A simple tool for literate programming (development, program)2016-02-090.1.10.0cdosborn
literal-flake-input60.00Web service converting URLs into archived nix attrsets (bsd3, library, program, system)2026-02-140.0.4DaniilIaitskov
literatex310.00transform literate source code to Markdown (library, mit, program, utils)2025-01-020.4.0.0TravisCardwell
live-sequencer320.01Live coding of MIDI music (gui, library, music, program, sound)2024-02-110.0.6.3HenningThielemann
liveplot80.00Liveplotting (bsd3, graphics, library, program)2018-07-240.1.0.0srk
llama-cpp-haskell500.00Haskell bindings for the llama.cpp llama-server and a simple CLI (agpl, ai, cli, library, llama, llm, machine-learning, network, program, text)2026-10-020.3.1SergeyAlirzaev
llm-simple500.00Multi-provider LLM library with agent tool loops and filesystem tools (ai, bsd3, library, program)2026-11-040.4.3.0DanielVanDenEijkel
llsd100.01An implementation of the LLSD data system (library, mit, networking, program)2010-08-300.2.0.0BryanOSullivan
llvm-ffi-tools130.01Tools for maintaining the llvm-ffi package (bsd3, code-generation, compilers-interpreters, program)2026-07-120.0.2HenningThielemann
llvm-pkg-config220.01Generate Pkg-Config configuration file for LLVM (bsd3, code-generation, program)2025-08-100.0.3HenningThielemann
llvm-pretty-bc-parser950.02LLVM bitcode parsing library (bsd3, library, program, text)2026-08-280.6.1.0EricMertens, TrevorElliott, ryanglscott, galoisinc, mccleeary, sauclovian_g, aschwerdfeger_galois
llvm-tools90.01Useful tools built on llvm-analysis (bsd3, development, library, program)2013-11-120.2.0.1TristanRavitch
lnd-client90.01Lightning Network Daemon (LND) client library for Haskell (bitcoin, bsd3, finance, library, lightning, network, payments, program)2022-07-220.1.0.1coingaming
lnurl-authenticator50.00A command line tool to manage LNURL auth identities (bsd3, library, program, unclassified)2021-08-070.1.0.0IanShipman
loch110.01Support for precise error locations in source files (bsd3, development, library, program)2007-01-250.2DonaldStewart
locked-poll20.00Very simple poll lock (bsd3, library, program, unclassified)2015-12-170.1.0scottmurphy09
log-effect400.02An extensible log effect using extensible-effects (control, effect, library, logging, mit, program)2019-03-021.2.0ibotty, sickmind
log-utils80.01Utils for working with logs (bsd3, data, program)2017-07-210.2.2.1MikhailGlushenkov, arybczak, jonathanjouty_scrive, trin_cz
log-warper2010.04Flexible, configurable, monadic and pretty logging (library, logging, mit, program)2020-03-041.9.0gromak, volhovm, serokell
log2json70.01Turn log file records into JSON. (json, library, logging, program, text, tools, utils)2012-11-020.1HaroldLee
logger-thread110.00Run FastLogger in a thread and direct all queued messages to it. (bsd3, library, program, text)2016-12-240.1.0.2joe9
logging-effect-extra (deprecated)210.00Supplemental packages for `logging-effect`. (deprecated, library, mit, other, program)2018-08-052.0.0jship
logging-effect-extra-file (deprecated)300.01TH splices to augment log messages with file info (deprecated, library, mit, other, program)2018-08-062.0.1jship
logging-effect-extra-handler (deprecated)440.01Handy logging handler combinators (deprecated, library, mit, other, program)2018-08-062.0.1jship
lojban160.01Useful utilities for the Lojban language (bsd3, language, library, program)2008-12-180.3
lojbanParser250.01lojban parser (bsd3, language, library, program)2014-08-160.1.9.2YoshikuniJujo
lojbanXiragan90.01lojban to xiragan (bsd3, language, library, program)2013-03-070.3YoshikuniJujo
lojysamban290.01Prolog with lojban (bsd3, language, program)2014-10-240.0.8.1YoshikuniJujo
longshot211.50Fast Brute-force search using parallelism (algorithm, cryptography, library, mit, parallelism, program, search)2021-12-130.1.0.6thyeem
loopy130.01Find all biological feedback loops within an ecosystem graph. (bsd3, program, unclassified)2011-03-220.0.1EmilyMitchell
lord420.01A command line interface to online radios. (library, music, program, public-domain, web)2015-01-222.20150122rnons
lorem30.00Library for generating filler text (bsd3, library, program, text)2015-04-220.0.0.0StefanFischer
loshadka50.01Minecraft 1.7 server proxy that answers to queries when the server is offline (mit, network, program)2014-04-250.2LnYnp6WCYyKG3yhdLDztVRuQjTFKEy
lostcities100.01An implementation of an adictive two-player card game (game, program)2009-11-210.2PedroVasconcelos
loup560.00Amazon Simple Workflow Service Wrapper for Work Pools. (aws, cloud, distributed-computing, library, mit, network, program)2017-11-040.0.16markfine
louter70.01Multi-protocol LLM router and client library (library, mit, program, web)2026-05-050.1.1.2junjihashimoto
ls-usb600.01List USB devices (bsd3, program, system)2012-11-270.1.1RoelVanDijk
lscabal80.01List exported modules from a set of .cabal files (bsd3, distribution, program)2010-04-180.1.1DonaldStewart
lsfrom220.00List directory files starting from a specific name (bsd3, program, utility)2025-02-102.0JensPetersen
lsh60.00A simple ls clone with modern, colored formatting (binary, bsd3, library, program)2023-08-020.1.0.0floataqq
lsp-types1450.025Haskell library for the Microsoft Language Server Protocol, data types (development, library, mit, program)2026-02-172.4.0.0AlanZimmerman, AndreasAbel, PepeIborra, wz1000, luke_, jneira, michaelpj, hls_team
lsql-csv220.00A tool for CSV files data querying from the shell with short queries. (gpl, library, program, text)2024-05-080.1.0.6stastnypremysl
lsystem20.01Paint an L-System Grammar (application, bsd3, program)2011-10-251.2CarlosGomez
ltext420.01Parameterized file evaluator (bsd3, library, program, text)2024-01-050.1.5athanclark
lucid-alpine300.00Use Alpine.js in your lucid templates (bsd3, html, library, program, web)2022-01-300.1.0.7rashad1030
lucid-hyperscript120.00Use _hyperscript with lucid (bsd3, library, program, web)2022-01-300.1.0.2rashad1030
lucienne (deprecated)60.01Server side feed aggregator/reader (deprecated, program, web)2012-06-090.0.2AlexanderBau
lumberjack342.01Trek through your code forest and make logs (library, logging, program)2023-07-281.0.3.0KevinQuick, ryanglscott, galoisinc
luminance-samples580.01Luminance samples (bsd3, graphics, program)2016-02-270.11DimitriSabadie
lushtags40.01Create ctags compatible tags files for Haskell programs (development, mit, program)2011-09-200.0.1BitConnor
lvmlib110.02The Lazy Virtual Machine (LVM). (bsd3, compilers-interpreters, library, program)2014-09-021.1JurriaanHage
lvmrun40.01The Lazy Virtual Machine (LVM) Runtime System. (compilers-interpreters, program)2014-09-021.0JurriaanHage
lxd-client400.00LXD client written in Haskell. (gpl, library, program, system)2018-02-130.1.0.6hverr
lye60.01A Lilypond-compiling music box (mit, program, sound)2013-01-060.1.0.0CorbinSimpson
lz4-conduit110.00LZ4 compression for conduits (bsd3, codec, compression, conduit, library, program)2018-03-250.3scm
lz4-frame-conduit140.00Conduit implementing the official LZ4 frame streaming format (library, mit, program, web)2024-12-170.1.0.2NiklasHambuechen
maam130.01Monadic Abstracting Abstract Machines (MAAM) built on Galois Transformers (bsd3, library, program, static-analysis)2015-10-270.3.0.0DavidDarais
macbeth-lib40.00Macbeth - A beautiful and minimalistic FICS client (game, library, program)2016-04-050.0.12tgass
maclight20.01Control screen and keyboard backlights on MACs under Linux (apple, library, mit, program)2014-06-040.1.0.0TychoAndersen
macosx-make-standalone70.01Make a macosx app standalone deployable (bsd3, development, program)2013-07-240.1.0.1AtzeDijkstra
macrm50.00Alternative rm command for macOS that remove files/dirs to the system trash (bsd3, library, program)2020-11-021.0.0.5satosystems
mad-props100.00Monadic DSL for building constraint solvers using basic propagators. (bsd3, library, program, propagators)2019-11-120.2.1.0ChrisPenner
mage100.01Rogue-like (bsd3, game, program)2008-03-051.1.0GwernBranwen
magic-wormhole180.01Interact with Magic Wormhole (crypto, library, program)2021-02-250.3.4ShaeErisson, jml, jcalderone, rkrishnan
magico180.01Compute solutions for Magico puzzle (bsd3, math, program)2021-12-050.0.2.3HenningThielemann
mahoro50.01ImageBoards to XMPP gate (program, web)2009-09-160.1.2OlegIvanov
maid710.01A simple static web server (bsd3, program, web)2014-10-142014.10.14JinjingWang
mail-pool330.00Preconfigured email connection pool on top of smtp. (email, library, mit, program)2024-08-142.3.1Jappie
mailbox-count230.01Count mailboxes in a SQL database (agpl, mail, program, utils)2024-05-151.8.7MichaelOrlitzky
mailchimp-subscribe40.01MailChimp subscription request handler (mail, mit, program)2014-12-021.0mietek
majordomo150.01Majordomo protocol for ZeroMQ (bsd3, library, network, program)2012-04-110.1.6MarkWotton
make-hard-links40.01Change duplicated files into hard-links. (program, system)2009-03-140.2FelipeLessa
make-package140.01Make a cabalized package (bsd3, development, program, utils)2014-09-271.2.0PhilippBalzarek
mallard350.00Database migration and testing as a library. (database, library, mit, program)2017-09-240.6.1.1andrewrademacher
mameya130.00Static Website Generator in Haskell (library, mit, program, web)2018-09-160.2.1bururabit
manatee452.02The Haskell/Gtk+ Integrated Live Environment (desktop-environment, gpl, ide, library, manatee, operating-system, program)2011-05-140.2.2AndyStewart
manatee-all60.01Virtual package to install all Manatee packages. (desktop-environment, gpl, ide, library, manatee, operating-system, program)2011-05-140.2.2AndyStewart
manatee-anything280.01Multithread interactive input/search framework for Manatee (desktop-environment, gpl, ide, library, manatee, operating-system, program)2011-01-120.0.8AndyStewart
manatee-browser330.02Browser extension for Manatee. (browser, gpl, library, manatee, network, program)2011-05-140.1.1AndyStewart
manatee-curl310.02Download Manager extension for Manatee. (download-manager, gpl, library, manatee, network, program)2011-05-140.1.1AndyStewart
manatee-editor240.02Editor extension for Manatee. (editor, gpl, ide, library, manatee, program)2011-05-140.1.1AndyStewart
manatee-filemanager210.02File manager extension for Manatee. (file-manager, gpl, library, manatee, program)2011-05-140.1.1AndyStewart
manatee-imageviewer410.02Image viewer extension for Manatee. (gpl, image, image-viewer, library, manatee, program)2011-05-140.1.1AndyStewart
manatee-ircclient270.02IRC client extension for Manatee. (gpl, irc, irc-client, library, manatee, program)2011-05-140.1.1AndyStewart
manatee-mplayer280.02Mplayer client extension for Manatee. (gpl, library, manatee, multimedia, multimedia-player, program)2011-05-140.1.1AndyStewart
manatee-pdfviewer340.02PDF viewer extension for Manatee. (gpl, library, manatee, pdf, pdf-viewer, program)2011-05-140.1.1AndyStewart
manatee-processmanager200.02Process manager extension for Manatee. (gpl, library, manatee, process-manager, program, system)2011-05-140.1.1AndyStewart
manatee-reader260.02Feed reader extension for Manatee. (atom, feed, gpl, library, manatee, program, rss, rss-atom-reader)2011-05-140.1.1AndyStewart
manatee-template150.01Template code to create Manatee application. (gpl, ide, library, manatee, program, template)2011-05-140.1.1AndyStewart
manatee-terminal200.02Terminal Emulator extension for Manatee. (download-manager, gpl, library, manatee, network, program)2011-05-140.1.1AndyStewart
manatee-welcome60.02Welcome module to help user play Manatee quickly. (gpl, ide, library, manatee, program, welcome)2011-05-140.1.1AndyStewart
mancala40.01Simple mancala game. (game, lgpl, program)2011-06-300.1JulianaLucena
mandulia220.01A zooming visualisation of the Mandelbrot Set as many Julia Sets. (gpl, graphics, program)2022-09-220.8.0.1ClaudeHeilandAllen
mangle40.01Convert C++ type signatures to their mangled form (bsd3, ffi, library, program)2025-04-230.1.0.1SimonMarlow
mangopay790.02Bindings to the MangoPay API (bsd3, library, program, web)2015-12-311.12FelipeLessa, JeanPhilippeMoresmau, alanpog
map-exts142.01Extensions to Data.Map (bsd3, data-structures, library, program)2018-01-100.2.0.0coopercm
mappings270.00Types which represent functions k -> v (bsd3, data-structures, library, program)2026-02-200.4.0.0jcranch
mappy260.00A functional programming language focused around maps. (bsd3, compilers-interpreters, library, program)2016-02-180.1.3.1mjgpy3
marihana130.00Minimal tool to make your blog in Haskell (library, mit, program, web)2018-04-280.2.2.0suzukeno
marionetta100.01A study of marionetta movements. (bsd3, game, program)2012-05-100.1.0.3PaoloVeronelli
markdown-unlit680.04Literate Haskell support for Markdown (development, library, mit, program)2023-07-100.6.0SimonHengel
markdown2svg (deprecated)680.01markdown to svg converter (bsd3, deprecated, program, text)2014-02-140.0.1.27YoshikuniJujo
markup-preview100.01A simple markup document preview (markdown, textile, reStructuredText) (gpl, program, text)2015-03-070.2.2.1MariusGhita
marmalade-upload440.01Upload packages to Marmalade (development, library, mit, program)2014-10-260.10lunaryorn
marquise30.02Client library for Vaultaire (bsd3, library, other, program)2015-03-234.0.0fractalcat
marvin590.00A framework for modular, portable chat bots. (bsd3, development, library, program)2017-09-240.2.5justus
marxup240.01Markup language preprocessor for Haskell (gpl, library, program, text)2019-11-193.1.2.0JeanPhilippeBernardy
masakazu-bot180.01@minamiyama1994_bot on haskell (gpl, program, web)2014-08-200.4.0.0minamiyama1994
master-plan180.00The project management tool for hackers (library, mit, program, tools)2017-08-180.3.1rodrigosetti
mastermind60.01console mastermind decypher (bsd3, game, program)2010-07-252010.7.25.1PaoloVeronelli
matcha40.00A micro web framework based on pattern matching (bsd3, http, library, program, web)2024-06-050.0.0.1rashad1030
mathblog190.01A program for creating and managing a static weblog with LaTeX math and diagrams (bsd3, program, web)2015-10-030.6JonathanDaugherty
mathgenealogy230.01Discover your (academic) ancestors! (gpl, program, web)2015-11-221.4.0PeterRobinson
mathista (deprecated)60.01A small programming language for numerical computing (deprecated, language, library, program, public-domain)2015-10-110.0.1seiya
matlab100.01Matlab bindings and interface (bsd3, foreign, library, math, program)2020-07-280.3.0.0DylanSimon, bmsherman, bebarker
matsuri240.01ncurses XMPP client (network, program)2009-12-030.0.4OlegIvanov
matterhorn1470.01Terminal client for the Mattermost chat system (bsd3, chat, library, program)2025-10-0890000.1.1JonathanDaugherty, KevinQuick, galoisinc
maxent-learner-hw230.00Hayes and Wilson's maxent learning algorithm for phonotactic grammars. (library, linguistics, program)2017-05-120.2.1gtsteel
maxent-learner-hw-gui140.01GUI for maxent-learner-hw (linguistics, program)2017-05-120.2.1gtsteel
maxsharing160.01Maximal sharing of terms in the lambda calculus with letrec (bsd3, compiler, graphs, program)2016-10-171.1JanRochel
maybench200.01Automated benchmarking tool (bsd3, development, library, program)2008-09-060.2.4.1EricKow
mbox-tools180.01A collection of tools to process mbox files (bsd3, email, program, utility)2011-10-150.2.0.4NicolasPouillard
mbox-utility150.01List contents of an mbox file containing e-mails (bsd3, console, program)2019-08-040.0.3.1HenningThielemann
mbug170.00download bugs mailboxes (debian, gpl, library, program)2019-01-091.3.2DmitryBogatov
mcaeson50.00An Aeson parsing toolkit (bsd3, json, library, program, web)2021-04-120.0.0.1ChrisDornan
mcm62.01Machine Configuration Manager (gpl, language, program, system, text)2018-11-030.6.8.1AnthonyDoggett
mcmaster-gloss-examples50.01 (graphics, mit, program)2014-04-072013yuriyt
mcp-hoogle150.00MCP server exposing Hoogle search over local project dependencies (development, ide, library, mit, program)2026-05-180.2.0Jappie
mcp-server1222.02Library for building Model Context Protocol (MCP) servers (bsd3, json-rpc, library, mcp, network, program, server, service)2026-10-200.3.0.1drshade
mdcat170.01Markdown viewer in your terminal (library, mit, program, text)2015-03-170.1.0.4bobfang1992
mdo30.01Command-line tool to run a command on each of the items. (bsd3, console, program)2008-08-070.0.1AudreyTang
mdoc1380.00Parser and pretty-printer for the mdoc(7) language (agpl, library, program, text)2026-10-130.6.1.1PatrickBrisbin
mdp50.00Tools for solving Markov Decision Processes. (algorithms, library, math, mit, program)2016-11-290.1.1.0prsteele
mealy-arrow90.00Monadic Mealy machines with Arrow, ArrowChoice, and ArrowLoop (arrows, bsd3, control, library, program)2026-05-050.1.0.0kaol
mecha180.01A constructive solid geometry (CSG) modeling language. (bsd3, language, library, program)2011-06-110.1.1TomHawkins
mediabus-rtp180.00Receive and Send RTP Packets (audio, bsd3, library, program)2017-07-040.4.0.1SvenHeyll
mediawiki140.01Interfacing with the MediaWiki API (bsd3, library, program, web)2013-11-200.2.6SigbjornFinne
mediawiki2latex190.01Convert MediaWiki text to LaTeX (program, text)2019-01-067.33dhun
mega-sdist1160.01Handles uploading to Hackage from mega repos (distribution, mit, program)2024-03-310.4.3.1MichaelSnoyman
melf220.01An Elf parser (bsd3, data, library, program)2024-04-141.3.1amakarov
melody40.01A functional scripting language (language, library, mit, program)2014-01-100.2jozefg
mem-info250.00Print the core memory usage of programs (bsd3, command-line-tools, library, program, system)2026-02-110.4.2.0adetokunbo
memis40.01Memis Efficient Manual Image Sorting (data, mit, program)2017-02-010.1.1johannesgerer
memscript200.01Command line utility for memorizing scriptures or any other text (education, program)2015-10-100.1.0.0KiYungAhn
mercury-api220.00Haskell binding to Mercury API for ThingMagic RFID readers (hardware, library, mit, program)2019-01-090.1.0.2ppelleti
merge-bash-history80.00command line utility to merge bash_history (bsd3, library, program, tools)2018-09-170.1.0.1JiriMarsicek
metar320.01METAR from BOM (Australia) with NOAA fallback (aviation, bsd3, data, library, program)2026-08-230.0.7TonyMorris, qfpl
metar-http340.00HTTP for METAR (aviation, bsd3, data, library, program)2026-08-230.0.7TonyMorris
miconix-test (deprecated)50.01spam (bsd3, deprecated, program, spam)2018-09-160.2
micro-gateway90.00A Micro service gateway. (bsd3, cloud, faas, gateway, library, network, program, saas)2020-10-101.1.0.1Lupino
microc90.00microc compiler (bsd3, compiler, library, program)2017-11-061.0.0.1hurou927
microdns130.00a minimalistic DNS-authoritative server (bsd3, networking, program)2026-09-300.2.0.0LucasDiCioccio
mida (deprecated)240.00Language for algorithmic generation of MIDI files (deprecated, gpl, language, library, program)2016-09-101.0.2mrkkrp
midi-music-box370.01Convert MIDI file to music box punch tape (bsd3, music, program, sound)2026-08-070.0.1.3HenningThielemann
midimory190.01A Memory-like (Concentration, Pairs, ...) game for tones (bsd3, game, gui, music, program, sound)2024-02-170.0.2.3HenningThielemann
midisurface70.01A control midi surface (bsd3, program, sound)2014-01-070.1.0.0PaoloVeronelli
mighttpd210.01Simple Web Server in Haskell (bsd3, network, program)2010-11-290.4.3KazuYamamoto
mighttpd23120.01High performance web server on WAI/warp (bsd3, library, network, program, web)2026-11-064.0.12KazuYamamoto
mikrokosmos270.01Lambda calculus interpreter (gpl, language, program)2018-08-010.8.0mroman42
mime-mail-ses1090.03Send mime-mail messages via Amazon SES (library, mit, program, web)2026-06-210.4.5MichaelSnoyman, psibi, kindaro, janus
mines40.01Minesweeper simulation using neural networks (ai, game, program)2008-08-130.1AnttiSalonen
minesweeper500.01Minesweeper game which is always solvable without guessing (bsd3, game, program)2014-07-060.9.2.1PeterDivianszky
mini-egison200.01Template Haskell Implementation of Egison Pattern Matching (data, library, mit, pattern, program)2020-03-041.0.0SatoshiEgi, momohatt
minici150.00Minimalist CI framework to run checks on local machine (gpl, program, testing)2025-12-290.1.9RomanSmrz
miniforth60.01Miniature FORTH-like interpreter (language, library, mit, program)2015-03-080.1.0.1L8D
minilight230.01A SDL2-based graphics library, batteries-included. (graphics, library, mit, program)2020-05-050.5.0myuon
minilight-lua110.00A binding library of minilight for Lua langauge. (graphics, library, mit, program)2020-05-160.2.1.0myuon
minimung60.01Shows how to run grabber on Mac OS X (bsd3, foreign, graphics, program)2010-02-200.1YakovZaytsev
minion60.05A Haskell introspectable web router (library, mit, program, web)2024-10-010.1.0.1goosedb
minion-conduit30.00Minion conduit support (library, mit, program, web)2024-09-290.1.0.0goosedb
minion-jwt70.00Minion JWT support (library, mit, program, web)2024-09-290.1.0.0goosedb
minion-wai-extra30.01Minion wrappers for wai-extra (library, mit, program, web)2024-09-290.1.0.0goosedb
minions50.01A fast parallel ssh tool (bsd3, network, program)2012-11-150.2.0.0JasonHickner
miniplex160.01simple 1-to-N interprocess communication (library, program, system)2009-03-060.3.4LukasMai
minirotate380.01Minimalistic file rotation utility (bsd3, program, utils)2010-03-020.1.2.2KrzysztofSkrzetnicki
ministg50.01an interpreter for an operational semantics for the STG machine. (bsd3, language, program)2012-04-100.3BerniePope
mios270.01A Minisat-based CDCL SAT solver in Haskell (artificial-intelligence, constraints, gpl, library, program)2018-10-071.6.2shnarazk
mirror-tweet50.01Tweet mirror (gpl, program, web)2014-08-170.1.0.0minamiyama1994
mischief-ecs60.00An opinionated archetype ECS engine built in Haskell. (bsd3, control, data, ecs, framework, game, game-engine, library, program)2026-08-110.1.0.0Damon
misfortune450.03fortune-mod clone (console, game, library, mit, program, public-domain)2022-08-120.1.2.1JamesCook, ncfavier
miso-fluent120.00Translate miso apps with Project Fluent (language, library, program, web)2026-10-201.1.0IDA
miso-from-html70.00Convert HTML to miso View syntax (bsd3, library, program, web)2026-04-050.3.0.0DavidJohnson
mit-3qvpPyAi6mH370.00A git wrapper with a streamlined UX (cli, library, mit, program)2024-10-1612mitchellwrosen
miv210.00Vim plugin manager written in Haskell (compiler, mit, program)2025-06-190.4.9itchyny
mixed-strategies50.01Find optimal mixed strategies for two-player games (library, math, mit, program)2012-12-140.1.0.0BartonMassey
mkbndl130.01Makes an OS X .app bundle from a binary. (distribution, program)2008-05-260.2.1ThomasDavie
mkcabal330.01Generate cabal files for a Haskell project (distribution, program)2010-04-171.0.0DonaldStewart
ml-w80.01Minimal ML language to to demonstrate the W type infererence algorithm. (language, library, program, public-domain, type-inference)2012-04-090.1.1FrancescoMazzoli
mmark-cli370.01Command line interface to the MMark markdown processor (bsd3, cli, program, text)2026-08-210.1.0.0mrkkrp
mmsyn4 (deprecated in favor of gvti)681.250The "glue" between electronic tables and GraphViz (GraphViz, deprecated, graphics, library, mit, program)2022-08-130.6.4.0OleksandrZhabenko
mmsyn6ukr1280.010A musical instrument synthesizer or a tool for Ukrainian language listening (Ukrainian, language, library, mit, program, speech-approximation)2020-11-070.9.0.0OleksandrZhabenko
mmsyn6ukr-array220.00A musical instrument synthesizer or a tool for Ukrainian language listening (Ukrainian, language, library, mit, program, tts)2022-08-150.3.3.0OleksandrZhabenko
mmsyn7h1220.00Produces a sound recording specified by the Ukrainian text. (Ukrainian, language, library, mit, program, sound, sox, speech-approximation, speech-transformation, voice)2020-12-030.8.1.0OleksandrZhabenko
mmsyn7l730.07Modifies the amplitudes of the sounds representations created by mmsyn7ukr-array and mmsyn7ukr packages. (Ukrainian, library, mit, program, sound, sox, speech-approximation, speech-transformation, voice)2024-12-190.9.2.0OleksandrZhabenko
mmsyn7s1030.06Shows a sorted list of the Ukrainian sounds representations that can be used by mmsyn7 series of programs (Ukrainian, language, library, mit, program, speech-approximation, speech-transformation, syllable-segmentation)2020-10-090.9.1.0OleksandrZhabenko
mmsyn7ukr1960.04A simple basic interface to some SoX functionality or to produce a voice that can be used by mmsyn7h (Ukrainian, language, library, mit, program, sound, sox, speech-approximation, speech-transformation, voice)2020-08-160.17.0.0OleksandrZhabenko
mmzk-env490.00Read environment variables into a user-defined data type (data, environment, library, mit, program)2026-09-060.6.0.0MMZK1526
mock-httpd100.00A HTTP server for testing HTTP clients (bsd2, network, program)2020-10-291.0.0PeterJones
modify-fasta320.00Modify fasta (and CLIP) files in several optional ways (bioinformatics, gpl, library, program)2018-04-020.8.3.0GregorySchwartz
modsplit130.01Haskell source splitter driven by special comments. (bsd3, library, program, utils)2009-09-050.2.1DmitryGolubovsky
module-management500.01Clean up module imports, split and merge modules (bsd3, development, editor, haskell, ide, library, program, refactoring)2016-05-010.21DavidFox
modulo230.01Modular C code generator (ffi, gpl, language, library, program)2014-07-281.9.1HansHoglund
moesocks1100.01A functional firewall killer (apache, network, program)2018-12-271.0.1.0JinjingWang
moffy-samples-gtk360.00Sample executables of moffy - GTK3 version (bsd3, control, program)2023-12-200.1.0.0YoshikuniJujo
moffy-samples-gtk490.00Sample executables of moffy - GTK4 version (bsd3, control, program)2023-12-120.1.0.1YoshikuniJujo
mohws360.01Modular Haskell Web Server (bsd3, library, program, web)2023-01-150.2.1.9GwernBranwen, HenningThielemann
mole240.01A glorified string replacement tool (mit, program, system)2020-05-020.0.7wereHamster
monad-bayes390.01A library for probabilistic programming. (library, mit, program, statistics)2025-10-071.3.0.5AlexanderVershilov, DominicSteinitz, turion, tweag
monad-logger-aeson962.05JSON logging using monad-logger interface (library, mit, program, system)2026-05-230.4.1.6jship
monad-logger-extras150.02Utilities for composing loggers, coloring output, plus a few orphan instances. (bsd3, library, program, system)2025-01-190.1.1.2RyanTrinkle, abrar, alexfmpe, maralorn, ymeister
monadloc-pp140.01A preprocessor for generating monadic call traces (control, monads, program, public-domain)2014-10-170.3.1PepeIborra
monatone250.00Pure Haskell library for audio metadata parsing and writing (audio, gpl, library, program, sound)2026-07-250.4.0.1rembo10
monitor80.01Do things when files change. (mit, program, system)2013-07-100.1.1MartinStensgard
monky220.00A system state collecting library and application (lgpl, library, program, system)2020-02-132.2.1.1ongyerth
monoidal-functors202.00Monoidal Functors Library (categories, control, library, mit, program)2026-11-090.3.0.0solomon
monomer362.253A GUI library for writing native Haskell applications. (bsd3, gui, library, program)2024-01-081.6.0.1fjvallarino
monomer-flatpak-example980.00Monomer Flatpak Example Application. (flatpak, gui, mit, program)2025-01-120.0.17.1garethdanielsmith
moonlight-planar380.00Native hex regions, Delaunay meshes, and exact planar algebra. (geometry, library, math, mit, program)2026-10-021.2.0.1bluerose
moonlight-triangulation (deprecated in favor of moonlight-planar)962.00Delaunay meshes and exact planar-region algebra. (deprecated, geometry, library, math, mit, program)2026-08-311.5.0.0bluerose
morfette600.01A tool for supervised learning of morphology (bsd3, natural-language-processing, program)2018-09-180.4.7GrzegorzChrupala
morley2030.05Developer tools for the Michelson Language (language, library, mit, program)2023-07-311.20.0gromak, pasqu4le, serokell
morley-client200.02Client to interact with the Tezos blockchain (blockchain, library, mit, program)2023-07-310.4.0pasqu4le, serokell
morley-upgradeable50.00Upgradeability infrastructure based on Morley. (language, library, mit, program)2021-04-020.3pasqu4le, serokell
morloc60.00A multi-lingual, typed, workflow language (code-generation, compiler, gpl, language, library, program)2020-11-060.33.0arendsee
morph132.00A simple database migrator for PostgreSQL (bsd3, database, library, program)2021-08-290.2.0.0thoferon
morpheus-graphql-cli70.00Morpheus GraphQL CLI (bsd3, cli, graphql, program, web)2019-11-010.1.0nalchevanidze
morpheus-graphql-code-gen1050.02Morpheus GraphQL CLI (bsd3, cli, graphql, library, program, web)2026-03-100.28.5nalchevanidze
morte1302.252A bare-bones calculus of constructions (bsd3, compiler, library, program)2019-11-031.7.2GabrielGonzalez
mortred80.00Library for setting up and running scrapers with webdriver. (bsd2, library, program, selenium, web-scraping)2021-10-240.0.2gonz
motor110.02Type-safe effectful state machines in Haskell (control, library, mpl, program)2019-06-230.4.0owickstrom
movie-monad152.01Plays videos using GStreamer and GTK+. (application, bsd3, multimedia, multimedia-player, program, video)2018-04-080.0.5.0lettier
mp290.01Music player for linux. (gpl, program, sound)2021-06-111.3.0piotrborek
mp3decoder70.01MP3 decoder for teaching. (codec, program)2008-10-010.0.1BjornEdstrom
mpd-current-json440.00Print current MPD song and status as JSON (library, network, program)2026-05-313.1.0.111xx
mpdmate60.01MPD/PowerMate executable (bsd3, program, system)2008-02-240.1GwernBranwen
mpi-hs572.03MPI bindings for Haskell (apache, distributed-computing, library, program)2024-10-160.7.3.1eschnett, phillipseeber
mpi-hs-binary120.00MPI bindings for Haskell (apache, distributed-computing, library, program)2020-04-180.1.1.0eschnett
mpi-hs-cereal70.00MPI bindings for Haskell (apache, distributed-computing, library, program)2020-04-180.1.0.0eschnett
mpi-hs-store30.00MPI bindings for Haskell (apache, distributed-computing, library, program)2020-04-180.1.0.0eschnett
mplayer-spot30.00Save your spot when watching movies with @mplayer@. (bsd3, library, program, text)2020-02-110.1.0.0cdepillabout
mprover80.01Simple equational reasoning for a Haskell-ish language (bsd3, program, theorem-provers)2011-12-150.0.0.0AdamProcter
mptcp-pm250.01A Multipath TCP path manager (gpl, library, mptcp, network, program)2022-01-040.0.5teto
mptcpanalyzer50.00A Multipath TCP analyzer (gpl, library, network, program)2022-01-050.0.2.0teto
mpvguihs40.01A minimalist mpv GUI written in I/O heavy Haskell. (gpl, multimedia, program)2013-11-140.1.1pse
mrifk100.01Decompiles Glulx files (decompiler, program, util)2017-01-164.3MicroTransactions
msgpack-binary80.03A Haskell implementation of MessagePack (bsd3, data, library, program)2022-02-140.0.16iphydf
msgpack-idl150.01An IDL Compiler for MessagePack (bsd3, language, library, program)2013-01-300.2.1HerbertValerioRiedel, HideyukiTanaka
msgpack-persist40.00A Haskell implementation of MessagePack (bsd3, data, library, program)2022-02-140.0.15iphydf
msi-kb-backlit90.01A command line tool to change backlit colors of your MSI keyboards (bsd3, program, system)2015-06-200.1.0.1DimitriSabadie
msu110.01Monitor Setup Utility (library, mit, program, unclassified)2021-10-140.2.0.0PatrickBrisbin
mu-avro220.02Avro serialization support for Mu microservices (apache, library, network, program)2021-02-080.4.0.4AlejandroSerrano, FlavioCorpa
mu-graphql270.00GraphQL support for Mu (apache, library, network, program)2023-01-070.5.0.4AlejandroSerrano, FlavioCorpa
mu-grpc-server230.00gRPC servers for Mu definitions (apache, library, network, program)2021-01-120.5.0.0AlejandroSerrano, FlavioCorpa
mu-protobuf260.03Protocol Buffers serialization and gRPC schema import for Mu microservices (apache, library, network, program)2021-01-290.4.2.0AlejandroSerrano, FlavioCorpa
mu-servant-server50.00Servant servers for Mu definitions (apache, library, network, program)2021-01-120.5.0.0AlejandroSerrano, FlavioCorpa
mud70.00Multi-version deployer for web applications (bsd3, library, program, unclassified)2017-02-270.1.0.0thoferon
mudbath60.01Continuous deployment server for use with GitHub (program, testing)2014-12-230.0.3wereHamster
mueval610.05Safely evaluate pure Haskell expressions (bsd3, development, language, library, program)2023-12-040.9.4ChrisDone, GwernBranwen, ncfavier, TerenceNg03
mulang210.01An intermediate language designed to perform advanced code analysis (language, library, program)2019-01-114.4.0flbulgarelli
multi-cabal40.00A tool supporting multi cabal project builds. (development, library, mit, program)2015-08-060.1.0.0bash0r
multidir60.00Simple tool for running commands in multiple directories (bsd3, command-line-tools, library, program)2025-04-050.1.0.0jcranch
multifile190.01create many files from one (bsd3, program, text)2019-05-220.1.0.7AlanHawkins
multifocal50.01Bidirectional Two-level Transformation of XML Schemas (bsd3, generics, library, program)2012-01-260.0.1HugoPacheco
multihash162.02Multihash library and CLI executable (bsd3, data, library, program)2015-08-210.1.2LukeHoersten
multiplicity70.01Wrapper program for duplicity, adding config files (backup, bsd3, program)2009-02-060.1.0DinoMorelli
multivariant40.00Multivariant assignments generation language (bsd3, library, program, test)2017-01-310.1.0.1MZiatdinov
multiverse-debugging90.00A framework for multiverse debugging (bsd3, debugging, library, program)2025-08-270.2.0.1DamianFrolich
muon250.01Static blog generator (bsd3, program, web)2014-08-110.1.0.8kaashif
murmur50.00Simple CUI Twitter Client. (bsd3, library, program, web)2016-04-060.0.0.2outoftune
mushu80.01Minimalist MPD client (bsd3, program, sound)2017-04-010.1.1elaye
music-preludes490.05Some useful preludes for the Music Suite. (bsd3, library, music, program)2015-06-301.9.0HansHoglund
music-util530.01Utility for developing the Music Suite. (bsd3, program, unclassified)2014-08-150.17HansHoglund
musicScroll450.00Supply your tunes info without leaving your music player. (gpl, library, music, program)2024-03-220.3.4RubenAstudillo
musicbrainz-email (deprecated)30.01Send an email to all MusicBrainz editors (deprecated, gpl, library, musicbrainz, program)2013-04-181.0.0.0OliverCharles
mustache1162.2514A mustache template parser library. (bsd3, development, library, program)2025-05-112.4.3.1SimonHengel, justus, mpilgrem
mustache-haskell220.01Straight implementation of mustache templates (library, mit, program, text)2014-12-110.1.0.5DanielChoi
mustache2hs240.01Utility to generate Haskell code from Mustache templates (program, utility)2013-09-230.3StephenWeber
mute-unmute130.01Watches your screensaver and (un)mutes music when you (un)lock the screen. (gpl, program, system)2010-08-270.2.0.0KrzysztofSkrzetnicki
mxnet-examples90.01Examples for MXNet in Haskell. (machine-learning, mit, program)2017-10-220.2.0.0sighingnow
mxnet-nn (deprecated in favor of fei-nn)140.01Train a neural network with MXNet in Haskell. (ai, bsd3, deprecated, library, machine-learning, program)2018-05-030.0.1.3JiasenWu
myanimelist-export130.00Export from MyAnimeList (gpl, library, program, web)2018-07-050.3.0.0mat8913
myo50.00Haskell binding to the Myo armband (library, mit, program, system)2015-09-130.2.0.0AlfredoDiNapoli
mysnapsession-example250.01Example projects using mysnapsession (bsd3, program, web)2011-02-140.4ChrisSmith
mysql-json-table250.00Using MySQL to store id-to-json tables. (database, library, mit, program)2025-03-010.1.4.1DanielDiaz
mystem60.00Bindings for Mystem morphological analyzer executabe (library, mit, natural-language-processing, program)2016-08-020.1.0.0wapxmas
mywatch210.01Web application to view and kill MySQL queries (databases, mit, program, web)2017-05-200.3.0ip1981
mywork70.00Tool to keep track of what you have been working on and where. (development, library, program)2022-10-131.0.1.0KevinQuick
n-m (deprecated)30.01Utility to call iwconfig. (deprecated, library, network, program)2008-09-110.0.1MarcoSilva
nagios-config30.00EDSL to specify Nagios configuration files. (gpl, library, program, web)2019-05-260.1.0.0hverr
nagios-plugin-ekg90.00Monitor ekg metrics via Nagios (library, mit, program, system)2015-06-260.1.1.0fractalcat
namecoin-update120.00Tool to keep namecoin names updated and well (gpl, library, network, program)2022-06-120.2.3.0rnhmjoj
nano-ui130.03Immediate-mode GUI toolkit for Haskell (graphics, library, mit, program)2026-09-180.1.0.1goolord
nanoAgda100.01A toy dependently-typed language (dependent-types, program)2012-03-201.0.0JeanPhilippeBernardy
nanopass120.00Create compilers using small passes and many intermediate representations. (bsd3, language, library, program)2025-12-020.0.3.2edemko, marseillebd
nanq (deprecated in favor of kanji)210.01Performs 漢字検定 (Japan Kanji Aptitude Test) level analysis on given Kanji. (deprecated, gpl, natural-language-processing, program)2016-04-133.0.1fosskers
native50.00Native library manager for Windows (bsd3, library, program, utility)2016-04-210.1.0.1darwin226
nats-client60.00Another Haskell client for NATS (https://nats.io) (bsd3, library, network, program)2018-02-180.1.0.0jpgneves
nbparts160.00Unpack a Jupyter notebook into its sources, metadata and outputs (apache, data, library, program)2025-09-180.1.1.0dixslyf
nc-indicators60.01CPU load and memory usage indicators for i3bar (apache, program, system)2014-07-250.3GergelyRisko, MihalyBarasz
neat60.01A Fast Retargetable Template Engine (library, mit, program, text)2014-02-080.1.0ajg
nehe-tuts190.01Port of the NeHe OpenGL tutorials to Haskell. (bsd3, graphics, program)2013-07-110.2.4JasonDagit
neil320.01General tools for Neil (bsd3, development, program)2015-08-200.10NeilMitchell
neko-obfs120.01a TCP tunnel with packet length obfuscation (apache, network, program)2019-11-230.1.0.4JinjingWang
neolua40.00A CLI adapter to map Lua's CLI to Neovim's CLI for lua interpretation. (cli, gpl, program)2023-06-041.0.0MrcJkb
neptune-backend120.01Neptune Client (bsd3, library, program, web)2021-01-010.3.0JiasenWu
nerf430.01Nerf, a named entity recognition tool based on linear-chain CRFs (bsd3, library, natural-language-processing, program)2019-12-030.5.4.1JakubWaszczuk
net-mqtt1472.253An MQTT Protocol Implementation. (bsd3, library, network, program)2026-11-050.8.8.0dustin
net-mqtt-rpc180.00Make RPC calls via an MQTT broker. (bsd3, library, network, program)2022-03-310.2.0.1dustin
net-spider-rpl-cli380.00CLI executable of NetSpider.RPL. (bsd3, database, library, program)2022-01-020.1.3.4debugito
netease-fm40.00NetEase Cloud Music FM client in Haskell. (bsd3, library, music, program, web)2017-01-041.2.2foreverbell
netlines (deprecated)220.03Enumerator tools for text-based network protocols (bsd3, deprecated, library, network, program)2011-06-151.0.0ErtugrulSoeylemez, esz
netlink102.04Netlink communication for Haskell (bsd3, library, program, system)2018-03-011.1.1.0MaximTreskin, ongyerth
netrium60.00Contract normaliser and simulator (finance, library, mit, program)2018-02-010.6.0abrar
netwire-vinylglfw-examples110.01Netwire/GLFW/VinylGL input handling demo (game, mit, program)2016-10-221.0.0RandKleisli
network-anonymous-tor230.00Haskell API for Tor anonymous networking (library, mit, network, program)2015-10-230.11.0solatis
network-builder60.01Linux NetworkNameSpace Builder (bsd3, library, network, program)2015-03-170.1.0junjihashimoto
network-dns240.02Domain Name System data structures (bsd3, library, network, program)2022-09-171.1.0.2AdamLangley, MikhailVorozhtsov
network-manager-tui (deprecated)40.00network-manager tui (bsd3, deprecated, library, program, tui)2019-09-161.0.0.0
network-server80.01A light abstraction over sockets & co. for servers (library, network, program, system)2009-02-260.2.0RickKaudewitz
network-topic-models40.01A few network topic model implementations for bayes-stack (bsd3, math, program)2012-10-270.2.0.1BenGamari
network-uri-template170.00Library for parsing and expanding URI Templates, as per RFC 6570 (agpl, library, program, web)2026-01-260.1.2.0PatrickBrisbin
neural122.00Neural Networks in native Haskell (library, machine-learning, mit, program)2017-07-270.3.0.1lbrunjes
neuron120.00Future-proof system for plain-text notes. (agpl, library, program, web)2020-10-081.0.0.0sridca
newhope62.00Library implementing the NewHope cryptographic key-exchange protocol (apache, cryptography, library, program)2019-03-230.1.0.0jeremy
newports110.01List ports newer than N days on a FreeBSD system (bsd3, program, system)2008-02-081.1BradClawsie
newsletter70.01A basic newsletter implimentation, using various backends. (bsd3, email, library, program, web)2019-05-060davean
newsynth312.04Exact and approximate synthesis of quantum circuits (gpl, library, program, quantum)2024-05-010.4.1.0PeterSelinger
newt100.01A trivially simple app to create things from simple templates. (bsd3, library, program, tools)2011-05-130.0.3.1RoganCreswick
ngram100.00Ngram models for compressing and classifying text. (bsd3, library, machine-learning, natural-language-processing, program)2018-11-130.1.0.1TomLippincott
ngrams-loader70.01Ngrams loader based on http://www.ngrams.info format (data, library, mit, program)2014-03-250.1.0.1YorickLaupa
ngx-export-distribution1212.00Build custom libraries for Nginx Haskell module (bsd3, library, network, program)2026-10-040.6.1.1lyokha
nicify110.04Pretty print the standard output of default `Show` instances. (mit, program, text, tools, utilities)2015-03-221.2.1JulianFleischer
nicovideo-translator210.01Nico Nico Douga (ニコニコ動画) Comment Translator (agpl, library, program, translation)2017-04-150.3.0.0hongminhee
nikepub150.01Command line utility publishes Nike+ runs on blogs and Twitter (program, web)2009-07-081.1.2UweHoffmann
nirum200.00IDL compiler and RPC/distributed object framework for microservices (gpl, language, library, program)2018-08-250.5.0hongminhee, nirum
niv570.00Easy dependency management for Nix projects (development, library, mit, program)2026-09-110.3.0nmattia
nix-delegate100.00Convenient utility for distributed Nix builds (apache, library, program, unclassified)2018-11-061.0.1GabrielGonzalez
nix-deploy230.01Deploy Nix-built software to a NixOS machine (apache, program, system)2022-06-211.0.6GabrielGonzalez, ParnellSpringmeyer
nix-derivation450.05Parse and render *.drv files (bsd3, library, program, system)2023-11-201.1.3GabrielGonzalez
nix-diff672.01Explain why two Nix derivations differ (bsd3, library, program, system)2024-12-201.0.21GabrielGonzalez
nix-freeze-tree80.00Convert a tree of files into fixed-output derivations (agpl, application, library, nix, program)2023-12-050.1.1.0jack
nix-graph80.00Reify the Nix build graph into a Haskell graph data structure (bsd3, graphs, library, nix, program)2022-05-121.0.2.0GabrielGonzalez, evanrelf, jsoo
nix-narinfo260.02Parse and render .narinfo files (bsd3, library, nix, program)2026-06-110.1.1.3srk
nix-thunk410.00Lightweight dependency management with Nix (bsd3, git, library, nix, program)2026-07-120.7.3.0RyanTrinkle, abrar, alexfmpe, maralorn, madeline_os, ymeister
nix-tools40.00cabal/stack to nix translation tools (bsd3, distribution, library, program)2019-10-130.1.0.0HamishMackenzie, angerman
nix-tree850.00Interactively browse a Nix store paths dependencies (bsd3, language.nix, library, program)2025-12-060.8.0utdemir
nixdu (deprecated in favor of nix-tree)60.00Interactively browse a Nix store paths dependencies (bsd3, deprecated, language.nix, program)2020-07-020.1.0.0utdemir
nixfromnpm160.01Generate nix expressions from npm packages. (mit, nix, program, tools)2016-07-140.10.1thinkpad20
nixpkgs-update70.01Tool for semi-automatic updating of nixpkgs repository (library, program, web)2021-08-250.3.0ryantm
nkjp260.01Manipulating the National Corpus of Polish (NKJP) (bsd3, library, natural-language-processing, program)2013-06-200.4.0JakubWaszczuk
nlp-scores-scripts60.01NLP scoring command-line programs (bsd3, natural-language-processing, program)2013-11-180.2.0.0GrzegorzChrupala
nm70.01Network Manager, binding to libnm-glib. (bsd3, development, library, program)2013-12-221.0.1ChrisDone
noether40.00Math in Haskell. (library, math, mit, program)2017-06-250.0.1mrkgnao
nofib-analyse100.01Parse and compare nofib runs (bsd3, development, program)2023-02-019.4.4JoachimBreitner
nofib-analyze (deprecated in favor of nofib-analyse)30.01Parse and compare nofib runs (bsd3, deprecated, development, program)2015-05-157.10.1JoachimBreitner
noise60.01A friendly language for graphic design (library, mit, program, text)2013-05-210.0.1TomBrow
nomyx-server50.01A Nomic game in haskell (bsd3, game, program)2017-03-171.0.0CorentinDupont
noodle60.01the noodle programming language (compilers-interpreters, library, program)2011-12-100.0.19JesseRudolph
normalize100.00Normalize data using a variety of methods. (bioinformatics, gpl, library, program)2018-06-290.3.1.1GregorySchwartz
normalize-imports60.01Sort and align Haskell import statements (bsd3, development, program)2017-03-140.1.0qoelet
nostr132.00Nostr library (library, mit, network, program)2026-06-071.3.1.0delirehberi
not-gloss-examples240.01examples for not-gloss (bsd3, graphics, program)2016-01-070.5.1.1GregHorn
notifications-tray-icon270.00System tray icons for GitHub, Gitea, and Gmail notifications (bsd3, desktop, library, program, unclassified)2026-11-030.2.1.0eyevanmalicesun
notion-client440.01Type-safe Haskell client for the Notion API (library, mit, program, web)2026-10-190.10.0.0shinzui
notmuch-haskell70.01Binding for notmuch MUA library (email, foreign, library, program)2015-04-211.0.0.3BartonMassey
nova-nix940.00Windows-native Nix implementation in Haskell and C99 (apache, distribution, library, nix, program, system)2026-11-050.10.0.0aoinoikaz
now-haskell40.00Zeit Now haskell-side integration and introspection tools. (library, mit, program, web)2019-08-210.1.0.0IanDuncan
nptools300.01A collection of random tools (bsd3, development, program, system, text, utils)2013-03-170.6.0NicolasPouillard
nri-observability192.254Report log spans collected by nri-prelude. (bsd3, library, program, web)2026-06-040.4.0.1stoeffel, JasperWoudenberg, NoRedInk, michaelglass, waj, julianobs, brianhicks
nth-prime80.01Computing the nth prime (mit, number-theory, program)2015-05-131.2JoeHurd
ntha110.00A tiny statically typed functional programming language. (bsd3, compiler, language, library, program)2016-08-270.1.3zjhsdtc
ntrip-client (deprecated)260.00NTRIP client. (bsd3, deprecated, library, network, program)2017-02-170.1.6markfine
numeric-ode80.00Ode solvers (bsd3, library, math, program)2017-07-220.0.0.0DominicSteinitz
nuxeo280.00 (bsd3, library, program, system)2018-10-310.3.2apeyroux
nvfetcher320.00Generate nix sources expr for the latest version of packages (library, mit, nix, program)2026-10-160.8.1.0berberman
nvim-hs-ghcid190.01Neovim plugin that runs ghcid to update the quickfix list (apache, editor, library, program)2022-12-162.0.1.0saep
nyan82.01Bored? Nyan cat! (bsd3, development, program)2011-08-150.2ChrisDone
nymphaea100.01An interactive GUI for manipulating L-systems (bsd3, graphics, program)2009-06-060.3CaleGibbard, GwernBranwen
nyx-game230.00A bullet-hell game made with SDL2. (apache, game, library, program)2019-11-091.0.1.0gilmi
o-clock522.59Type-safe time library. (library, mpl, program, time)2025-01-221.4.0.1int_index, gromak, vrom911, dcastro, serokell
obd190.00Communicate to OBD interfaces over ELM327 (gpl, hardware, library, program)2016-10-230.2.1.1hverr
octane (deprecated in favor of rattletrap)1740.00Parse Rocket League replays. (deprecated, game, library, mit, program)2017-10-240.20.3fozworth
octohat290.02A tested, minimal wrapper around GitHub's API. (library, mit, network, program)2015-08-170.1.5.0jsl, stackbuilders, sestrella
octopus180.01Lisp with more dynamism, more power, more simplicity. (gpl, language, library, program)2014-04-070.0.2.1ZankokuOkuno
odbc402.00Haskell binding to the ODBC API, aimed at SQL Server driver (bsd3, library, program, unclassified)2024-03-050.3.0ChrisDone, KirillZaborsky, MichaelSnoyman, psibi
odd-jobs232.250A full-featured PostgreSQL-backed job queue (with an admin UI) (bsd3, library, program, web)2020-07-070.2.2saurabhnanda
odid130.00Open Drone ID (data, library, mit, program)2026-09-291.0.0.0dopamane
ods2csv160.00Convert Open Document Spreadsheet ODS to CSV (bsd3, csv, program, text)2025-07-110.1.0.2HenningThielemann
ofx180.03Parser for OFX data (bsd3, finance, library, program)2019-10-190.4.4.0OmariNorman
oglyad70.00repository metadata and health checker for Terra (distribution, gpl, program)2026-11-100.1.3.1halfcyan
ogma-cli810.00Ogma: Helper tool to interoperate between Copilot and other languages. (aerospace, apache, program)2026-09-221.16.0IvanPerez
ohloh-hs100.01Interface to the Ohloh API (bsd3, library, program, web)2012-11-290.0.2FrankThomas
oi520.01Library for purely functional lazy interactions with the outer world. (bsd3, data, library, program)2016-03-270.4.0.2NobuoYamashita
okf-cli680.00Command-line interface for Open Knowledge Format bundles (bsd3, cli, data, library, program)2026-11-080.13.0.0shinzui
ollama-haskell482.04Industry-grade Haskell client for Ollama local LLMs (ai, library, mit, network, ollama, program, web)2026-10-250.4.2.0tusharad
olwrapper440.01An OpenLayers JavaScript Wrapper and Webframework with snaplet-fay (bsd3, library, map, openlayers, program, snaplet-fay, web, webframework)2015-02-020.4.1tomnobleman
omaketex60.01A simple tool to generate OMakefile for latex files. (bsd3, program, text)2013-10-100.1.1.0HiromiIshii
omega110.01A purely functional programming language and a proof system (bsd3, compilers-interpreters, language, program)2013-08-211.5.2GaborGreif
omnicodec230.01Data encoding and decoding command line utilities (codec, program)2019-02-040.8MagnusTherning
omnifmt190.00A pretty-printer wrapper to faciliate ease of formatting during development. (bsd3, development, library, program)2015-12-090.2.1.1hjwylde
on-demand-ssh-tunnel70.01Program that sends traffic through SSH tunnels on-demand (library, mit, network, program)2015-02-240.1.0.6pedja
one-time-password180.02HMAC-Based and Time-Based One-Time Passwords (cryptography, library, mit, program)2025-05-203.0.1.0hecate
only140.01A grep-like tool for filtering on words or lines. (console, program)2008-09-200.0.6.0AndrewRobbins
opaleye-trans470.00A monad transformer for Opaleye (bsd3, database, library, program)2021-02-040.5.2wraithm, LukeHoersten
open-adt-tutorial30.00Open algebraic data type examples. (bsd3, data, library, program)2018-11-251.0Woehr
open-haddock50.01Open haddock HTML documentation (development, gpl, program)2015-10-300.1.0.0jml
open-union270.04Extensible, type-safe unions. (data, library, mit, program)2018-04-200.4.0.0BenFoppa
openai910.04Servant bindings to OpenAI (ai, api, bsd3, library, program, web)2026-08-252.5.4GabrielGonzalez, asselinpaul
openapi-hs150.04OpenAPI 3.1 data model (bsd3, library, openapi, program, web)2026-07-215.0.0shinzui
openapi3700.035OpenAPI 3.0 data model (bsd3, library, openapi, program, swagger, web)2026-04-223.2.5maksbotan
openapi3-code-generator290.00OpenAPI3 Haskell Client Code Generator (code-generator, library, mit, program)2025-04-140.2.0.0Norfair, remo_doerig, joel_fisch
opengl-dlp-stereo190.01Library and example for using DLP stereo in OpenGL (graphics, library, mit, program)2016-04-160.1.5.4BrianBush
opengl-spacenavigator190.01Library and example for using a SpaceNavigator-compatible 3-D mouse with OpenGL (graphics, library, mit, program)2016-04-160.1.5.5BrianBush
openssh-github-keys (deprecated)80.01Fetch OpenSSH keys from a GitHub team (deprecated, library, mit, program, system)2015-04-230.1.1.0jsl, stackbuilders, sestrella
opentelemetry-extra480.01 (apache, library, opentelemetry, program)2022-04-070.8.0DmitryIvanov, PepeIborra
opentelemetry-lightstep810.00 (apache, library, opentelemetry, program)2022-04-070.8.0DmitryIvanov, PepeIborra
opentheory-char (deprecated in favor of opentheory-unicode)130.01Unicode characters (deprecated, library, mit, program, text)2012-11-101.41JoeHurd
oplang240.00Stack-based esoteric programming language (compilers-interpreters, gpl, language, program)2024-04-280.5.0.0aionescu
opn100.01Open files or URLs using associated programs. (application, bsd3, console, program)2017-12-300.1.3AndersClaesson
optimal-blocks60.01Optimal Block boundary determination for rsync-like behaviours (bsd3, data, library, program)2015-04-070.1.0tsuraan
optimusprime130.01A supercompiler for f-lite (bsd3, compiler, language, program, program-transformation)2009-11-170.0.1.20091117JasonReich
optparse-generic1712.537Auto-generate a command-line parser for your datatype (bsd3, library, program, system)2026-03-291.5.3GabrielGonzalez
orc140.01Orchestration-style co-ordination EDSL (bsd3, library, program, web)2014-06-171.2.1.4TrevorElliott
orchid-demo180.01Haskell Wiki Demo (bsd3, network, program, web)2009-04-010.0.6SebastiaanVisser
ordinal380.00Convert numbers to words in different languages. (bsd3, library, number, program, utils)2024-01-180.6.0.0wvanonsem90
org2anki80.01Basic org to anki exporter (gpl, language, program)2016-10-290.1.0mroman42
organize-imports130.01Organize scala imports (development, gpl, program)2016-05-050.4.0.0lcycon
orgstat320.00Statistics visualizer for org-mode (gpl, library, program, unclassified)2021-04-250.1.10volhovm
orizentic40.00Token-based authentication and authorization (authentication, bsd3, library, program)2017-07-190.1.0.0savannidgerinel
ormolu1640.02A formatter for Haskell source code (bsd3, development, formatting, library, program)2026-08-180.9.0.0tweag
osdkeys100.01Show keys pressed with an on-screen display (Linux only) (bsd3, library, program, screencast)2014-11-010.0ChrisDone
oset180.00An insertion-order-preserving set (command-line, library, mit, program)2019-02-090.4.0.1rcook
oso2pdf50.01Better conversion of Oxford Scholarship Online material to PDF (gpl, program, text)2015-09-280.1.0spwhitton
ostree-pin90.00Tool to update ostree deployment pin (gpl, program, utility)2023-10-300.1.1JensPetersen
otp-authenticator170.00OTP Authenticator (a la google) command line client (bsd3, cli, library, program, security)2024-01-150.1.2.1jle
ottparse-pretty370.01Pretty-printer for Ott parse trees (bsd3, program, text)2016-05-210.1.2.6BrentYorgey
outsort30.00External sorting package based on Conduit (algorithms, mit, program)2019-07-110.1.0luispedro
package-o-tron (deprecated)80.01Utilities for working with cabal packages and your package database (bsd3, deprecated, development, library, program)2012-10-050.1.0.0JakeWheat
package-vt60.01Haskell Package Versioning Tool (bsd3, development, program)2009-11-270.1.3.3KrzysztofSkrzetnicki
packdeps440.01Check your cabal packages for lagging dependencies. (bsd3, distribution, library, program)2020-07-270.6.0.0MichaelSnoyman
packed-data150.00 (bsd3, data, library, program)2025-07-040.2.0.0ArthiChaud
packunused152.01Tool for detecting redundant Cabal package dependencies (bsd3, distribution, program)2017-05-050.1.2HerbertValerioRiedel
pacman-memcache80.01Read whole Pacman database which pushes it into the memory cache (bsd3, program, system)2011-02-040.1.0.3KrzysztofSkrzetnicki
pagarme (deprecated)40.01Pagarme API wrapper (deprecated, library, mit, program, web)2015-03-170.1.0.0diogob
pager160.02Open up a pager, like 'less' or 'more' (bsd2, data, library, program, system, text)2015-05-160.1.1.0pharpend
pagure-cli230.00A Pagure gitforge query tool (gpl, program, utility)2026-02-110.2.3JensPetersen
paint50.01Colorization of text for command-line output (library, program, text)2020-02-222.0.0lovasko
palindromes430.01Finding palindromes in strings (algorithms, bsd3, library, program)2025-06-261.1.0.0JohanJeuring
pan-os-syslog70.00Parse syslog traffic from PAN-OS (bsd3, library, network, program)2025-03-110.2.0.0andrewthad
pandoc-citeproc (deprecated in favor of citeproc)4212.03Supports using pandoc with citeproc (bsd3, deprecated, library, program, text)2020-08-020.17.0.2JohnMacFarlane
pandoc-citeproc-preamble350.01Insert a preamble before pandoc-citeproc's bibliography (gpl, program, text)2020-07-261.6spwhitton
pandoc-cli1370.00Conversion between documentation formats (gpl, program, text)2026-10-263.13JohnMacFarlane
pandoc-columns40.00A pandoc filter that provides a Markdown extension for columns. (bsd3, library, program, text)2023-03-170.2.0.5AmyDeBuitleir
pandoc-crossref2900.01Pandoc filter for cross-references (gpl, library, program, text)2026-10-100.3.26lierdakil
pandoc-csv2table310.00Convert CSV to Pandoc Table Markdown (library, mit, program, text)2021-03-141.0.9baig, vmandela
pandoc-emphasize-code250.00A Pandoc filter for emphasizing code in fenced blocks (documentation, library, mpl, program)2020-08-300.3.0owickstrom
pandoc-filter-graphviz40.01A Pandoc filter to use graphviz (bsd3, program, text)2017-04-160.1.0.0jpierre03
pandoc-filter-indent310.00Pandoc filter formatting Haskell code fragments using GHC lexer. (bsd3, library, program, text)2025-11-170.3.3.1MichalGajda
pandoc-include40.01Include other Markdown files (library, mit, program, text)2015-12-080.0.1steindani
pandoc-include-code222.02A Pandoc filter for including code from source files (documentation, library, mpl, program)2019-12-241.5.0.0owickstrom
pandoc-include-plus80.00Pandoc filter to include files, with image path and heading level adjustment. (bsd3, library, program, text)2023-03-170.1.2AmyDeBuitleir
pandoc-japanese-filters60.01Japanese-specific markup filters for pandoc. (gpl, program, text)2016-01-200.1.0.1HiromiIshii
pandoc-linear-table40.00A pandoc filter that provides a Markdown extension to wrap text in table cells. (bsd3, library, program, text)2023-03-170.2.0.5AmyDeBuitleir
pandoc-logic-proof30.00A pandoc filter that provides a Markdown extension for logic proofs. (bsd3, library, program, text)2023-03-170.2.0.4AmyDeBuitleir
pandoc-markdown-ghci-filter70.00Pandoc-filter to evaluate `code` section in markdown and auto-embed output. (documentation, filter, library, mit, program, text)2019-07-060.1.0.0gdevanla
pandoc-md-slides162.00A pandoc filter to convert markdown notes to markdown slides (mit, program, text)2026-09-231.1.2.0rrabella
pandoc-placetable230.01Pandoc filter to include CSV files (program, text)2020-03-290.6mb21
pandoc-plantuml-diagrams60.00Render and insert PlantUML diagrams with Pandoc (library, mit, program, text)2021-02-040.1.1.0thriqon
pandoc-plot1272.00A Pandoc filter to include figures generated from code blocks using your plotting toolkit of choice. (gpl, library, program, text)2026-05-271.9.2LaurentRDC
pandoc-pyplot (deprecated in favor of pandoc-plot)652.00A Pandoc filter to include figures generated from Python code blocks (deprecated, documentation, gpl, library, program)2019-12-022.3.0.1LaurentRDC
pandoc-select-code70.00Pandoc filter to extract only the code blocks. (bsd3, program, text)2023-03-170.1.0.2AmyDeBuitleir
pandoc-sidenote150.01Convert Pandoc Markdown-style footnotes into sidenotes (commandline, library, mit, program)2023-05-250.23.0.0jez
pandoc-stylefrommeta270.01Pandoc filter to customize links, images and paragraphs (bsd3, program, text)2024-05-100.4.0.0lyokha
pandoc-symreg170.00A tool to convert symbolic regression expressions into different formats. (gpl, library, math, program, text)2023-06-250.2.1.3olivetti
pandoc-unlit (deprecated in favor of markdown-unlit)30.01Literate Haskell support for GitHub's Markdown flavor (deprecated, development, mit, program)2012-07-150.1.0SimonHengel
pandoc-vimhl490.01Pandoc filter for native Vim code highlighting (bsd3, program, text)2024-11-030.3.2.1lyokha
pang-a-lambda60.01A super-pang clone (game, gpl, program)2017-05-240.2.0.0keera_studios_ci
panhandle180.00Pandoc filter to unwrap nested blocks (library, program, public-domain, text)2017-09-210.3.0.0chriswarbo
panpipe50.00Pandoc filter to execute code blocks (library, program, public-domain, text)2017-05-170.2.0.0chriswarbo
pansite60.00Pansite: a simple web site management tool (library, mit, program, web)2018-04-280.2.0.0rcook
paphragen30.01A passphrase generator. (gpl, program, security)2016-12-300.2.0.0mgmillani
papillon362.06packrat parser (bsd3, library, parsing, program)2019-10-240.1.1.1YoshikuniJujo
pappy110.01Packrat parsing; linear-time parsers for grammars in TDPL. (bsd3, program, text)2012-10-210.1.0.2ChrisDone
paprika60.00The Haskell library and examples for the kids programming robot paprika (bsd3, library, program, system)2016-09-050.1.0.2tkmsm
paragon570.01Paragon (bsd3, language, library, program)2012-07-110.1.28NiklasBroberg
paranoia50.00http proxy server (library, mit, program, web)2016-05-010.1.0.0troydm
parconc-examples882.251Examples to accompany the book "Parallel and Concurrent Programming in Haskell" (bsd3, program, sample-code)2021-04-020.4.8SimonMarlow
paripari250.00Parser combinators with fast-path and slower fallback for error reporting (library, mit, program, text)2020-06-170.7.0.0minad
parochial80.00Help Manage project specific documentation (agpl, development, documentation, library, program)2021-01-030.2.0.0filterfish
parseargs672.03Parse command-line arguments (bsd3, console, library, program)2019-02-070.2.0.9BartonMassey
parsec-pratt60.00Pratt Parser combinator for Parsec (library, mit, program, text)2016-08-020.1.1jh3141
parser-helper50.01Prints Haskell parse trees in JSON. (apache, development, program)2014-06-040.1.0.0carymrobbins
parsestar130.01NMR-STAR file format parser. (bsd3, data, library, program)2014-11-031.5MichalGajda
partly110.01Inspect, create, and alter MBRs. (bsd3, filesystem, library, program, system)2012-12-111.0.0.2TimDixon
passman182.00a simple password manager (lgpl, library, program, security)2023-05-020.3.1.1jlamothe
passman-cli30.00Deterministic password generator command line interface (gpl, password, program)2017-12-160.2.0.0mat8913
password-cli50.00use password from your CLI (bsd3, cli, program)2026-03-170.1.1.0cdepillabout, nideco
pasta-curves72.00Provides the Pasta curves: Pallas, Vesta and their field elements Fp and Fq. (cryptography, elliptic-curves, library, mit, program)2022-08-310.0.1.0eschorn
pasty50.01A simple command line pasting utility (console, program)2008-12-310.1MarkusDittrich
patat2542.01Terminal-based presentations using Pandoc (gpl, library, program, text)2025-08-060.15.2.0JasperVanDerJeugt
patronscraper50.01A webpage scraper for Patreon which dumps a list of patrons to a text file. (mit, program, web)2015-02-030.0.0.1Forkk
paypal-adaptive-hoops (deprecated)410.01Client for a limited part of PayPal's Adaptive Payments API (deprecated, library, mit, program, web)2015-12-110.13.1.0fanjam
pb50.01pastebin command line application (application, bsd3, console, network, program, utils)2010-08-150.1.0DominikPicheta
pb-next (deprecated)40.00Utility CLI for working with protobuf files (bsd3, deprecated, library, program, web)2017-03-200.1.0.0bgwines
pcapng70.00 (bsd3, library, program, unclassified)2020-11-070.1.0.0MichalGajda
pcd-loader250.01PCD file loader. (bsd3, graphics, library, program, robotics)2013-02-260.3.0.1AnthonyCowley
pdf-slave510.01Tool to generate PDF from haskintex templates and YAML input (bsd3, library, program, web)2017-06-291.3.2.0NCrashed
pdf-slave-server100.00Web service for pdf-slave tool (bsd3, library, program, web)2017-07-060.1.2.0NCrashed
pdf-toolbox-viewer210.01Simple pdf viewer (bsd3, pdf, program)2015-10-160.0.5.0YurasShumovich
pdf2line50.01Simple command-line utility to convert PDF into text (program, text)2008-05-050.0.1AudreyTang
pdfname140.01Name a PDF file using information from the pdfinfo command (mit, pdf, program)2017-07-300.3AndresSicardRamirez
pdfsplit80.01split two-column PDFs, so there is one column per page (bsd3, pdf, program, utils)2011-04-010.0.1DanielWagner
pdftotext200.00Extracts text from PDF using poppler (bsd3, library, pdf, program, text)2020-12-010.1.0.1geyaeb
pec100.01pec embedded compiler (bsd3, language, library, program)2012-03-310.2.3BrettLetner
peg50.01a lazy non-deterministic concatenative programming language (compilers-interpreters, gpl, program)2012-04-160.2DustinDeWeese
penrose130.01Create beautiful diagrams just by typing mathematical notation in plain text. (library, mit, program, unclassified)2019-07-020.1.1.1wodeni
perceptual-hash892.00Find duplicate images (application, bsd3, commandline, images, library, program)2023-11-070.1.4.7vmchale
perdure170.01Robust persistence for acyclic immutable data (database, library, program)2012-09-260.2.1PatrickPremont
perf702.01Performance tools (bsd3, library, performance, program)2026-01-110.14.2.1tonyday567
perf-analysis (deprecated in favor of perf)90.00analysis example using perf (bsd3, deprecated, library, performance, program)2020-05-210.3.0tonyday567
perfect-hash-generator552.250Perfect minimal hashing implementation in native Haskell (apache, data-structures, embedded, library, program)2022-06-271.0.0kostmo
perfect-vector-shuffle200.00Library for performing vector shuffles (bsd3, library, program, random, vector)2024-06-110.1.1.2callanmcgill
period250.00Parse and format date periods, collapse and expand their text representations. (bsd3, library, program, text)2018-08-030.1.0.7alkar
periodic40.00A reliable at-least-once periodic job scheduler backed by redis. (library, program, web)2016-07-140.1.0.0DanielPatterson
periodic-client-exe30.00Periodic task system haskell client executables (bsd3, program, system, web)2020-08-091.1.7.1Lupino
periodic-server60.00Periodic task system haskell server (bsd3, library, program, system, web)2020-08-091.1.7.1Lupino
persist2er80.01Transforms persist's quasi-quoted syntax into ER format (database, gpl, program)2015-07-180.1.0.1fgaray
persistent-audit100.00Parses a Persist Model file and produces Audit Models (bsd3, database, library, persistent, program, yesod)2016-09-080.2.0.0mchaver
persistent-discover320.00Persistent module discover utilities (bsd3, library, program, web)2023-10-040.1.0.7parsonsmatt
persistent-mysql-haskell860.00A pure haskell backend for the persistent library using MySQL database server. (database, library, mit, program, yesod)2019-12-280.6.0naushadh
persistent-mysql-pure210.00A pure haskell backend for the persistent library using MySQL database server. (database, library, mit, program, yesod)2026-03-311.0.4Jappie
persona-idp150.01Persona (BrowserID) Identity Provider (agpl, program, web)2015-03-070.1.0.2frasertweedale
pesca50.01Proof Editor for Sequent Calculus (compilers-interpreters, program, theorem-provers)2008-05-204.0.1GwernBranwen, dpeteler, mmhat
pfile60.00CLI program for profiles management. (bsd3, filesystem, library, program)2024-07-260.1.0.1is
pg-harness (deprecated in favor of tempgres-client)250.01REST service and library for creating/consuming temporary PostgreSQL databases (agpl, database-testing-web, deprecated, library, program)2015-05-090.2.1BardurArantsson
pg-harness-server (deprecated in favor of tempgres-client)220.01REST service for creating temporary PostgreSQL databases (agpl, database-testing-web, deprecated, program)2019-06-260.6.2BardurArantsson
pg-migrate260.011Hasql-native PostgreSQL migration engine (bsd3, database, library, program)2026-09-181.2.0.0shinzui
pg-migrate-cli250.02Reusable command parsers and renderers for pg-migrate (bsd3, database, library, program)2026-09-181.2.0.0shinzui
pg-recorder50.00Initial project template from stack (bsd3, library, program, web)2017-07-250.2.0.0diogob
pgdl750.01browse directory listing webpages and download files from them. (network, program, public-domain)2018-01-1510.10sifmelcara
pgmq-inspect40.00Embeddable HTTP and WebSocket inspection surface for PGMQ queues (database, library, mit, program, web)2026-10-260.7.0.0shinzui
pgrep (deprecated in favor of screp)50.00grep-like CLI using Parsec parsers instead of regex (bsd3, console, deprecated, library, program, text)2026-02-240.1.0.0lazyLambda
phatsort110.00FAT filesystem sort utility (library, mit, program, utils)2023-05-280.6.0.0TravisCardwell
phino7122.00Command-Line Manipulator of 𝜑-Calculus Expressions (code-analysis, language, library, mit, program)2026-11-110.0.163maxonfjvipon
phladiprelio-ukrainian-simple940.00A PhLADiPreLiO implementation for Ukrainian that uses hashes and asynchronous concurrency. (PhLADiPreLiO, language, library, math, mit, music, program)2024-04-100.20.2.2OleksandrZhabenko
phoityne (deprecated in favor of phoityne-vscode)130.01Deprecated - ghci debug viewer with simple editor. (bsd3, deprecated, development, program)2017-02-040.0.5.0phoityne_hs
phoityne-vscode980.01Haskell Debug Adapter for Visual Studio Code. (bsd3, development, program)2019-02-030.0.28.0phoityne_hs
phonetic-languages-examples540.00A generalization of the uniqueness-periods-vector-examples functionality. (Ukrainian, game, language, library, math, mit, phonetic-languages, program)2021-02-020.7.0.0OleksandrZhabenko
phonetic-languages-phonetics-basics1410.05A library for working with generalized phonetic languages usage. (game, language, library, math, mit, phonetic-languages, phonetics, program, writing-systems)2024-01-300.11.0.0OleksandrZhabenko
phonetic-languages-plus350.03Some common shared between different packages functions. (game, language, library, math, mit, phonetic-languages, program)2023-02-020.7.1.0OleksandrZhabenko
phonetic-languages-simplified-examples-array1460.00Helps to create Ukrainian texts with the given phonetic properties. (PhLADiPreLiO, Ukrainian, game, language, library, math, mit, phladiprelio, phonetic-languages, program, prosodic-languages, prosody, rumba, syllables)2022-09-130.21.0.0OleksandrZhabenko
phonetic-languages-simplified-lists-examples230.00Simplified and somewhat optimized version of the phonetic-languages-examples. (Ukrainian, game, language, library, math, mit, phonetic-languages, program)2021-02-020.7.0.0OleksandrZhabenko
phonetic-languages-ukrainian-array890.03Prepares Ukrainian text to be used as a PhLADiPreLiO text (Ukrainian, game, language, library, mit, phonetic-languages, program)2024-02-220.12.2.0OleksandrZhabenko
photoname420.01Rename photo image files based on EXIF shoot date (application, console, library, program)2025-08-115.5DinoMorelli
phraskell180.01A fractal viewer. (gpl, graphics, program)2013-02-230.1.4DimitriSabadie
phybin370.01Utility for clustering phylogenetic trees in Newick format based on Robinson-Foulds distance. (bioinformatics, bsd3, library, program)2013-09-200.3RyanNewton
pi-calculus90.01Applied pi-calculus interpreter (gpl, program, web)2014-06-170.0.5renzyq19
pi-forall50.01Demo implementation of typechecker for dependently-typed language (bsd3, compilers-interpreters, library, program)2016-08-230.1.1sweirich
pi-hoole100.00Lightweight access control solution for the pijul vcs (agpl, library, program, security)2018-05-050.2.0.0lethom
pia-forward120.01Set up port forwarding with the Private Internet Access VPN service. (gpl, network, program)2016-07-310.1.0.2EchoNolan
picedit220.00simple image manipulation functions (gpl, image, library, matrix, picture, program)2017-02-040.2.3.0mdibaiee
pictikz110.01Converts a svg image to tikz code. (gpl, graphics, program)2017-04-091.1.0.0mgmillani
pid70.00a simple PID controller (control, program)2022-08-160.1.0.2SergeyAlirzaev
pid1230.01Do signal handling and orphan reaping for Unix PID1 init processes (library, mit, program, system)2022-11-290.1.3.1MichaelSnoyman, psibi
pier100.01Yet another Haskell build system. (bsd3, development, program)2018-09-230.3.0.0JudahJacobson
piet70.01A Piet interpreter (bsd3, compilers-interpreters, library, program)2009-01-200.1StephanFriedrichs
pig40.01dice game (bsd3, library, math, program)2018-04-060.0.1AndrewPennebaker
piki160.01Yet another text-to-html converter (bsd3, program, web)2017-11-140.5.3KazuYamamoto
pinboard-notes-backup770.00Back up the notes you've saved to Pinboard (backup, cli, gpl, pinboard, program)2026-10-061.0.7.2bdesham
pinch-gen220.00A code generator for the pinch Thrift library. (bsd3, development, program)2024-07-170.4.5.0PhilippHausmann, nhalford
pine120.00Functional 2D Game Framework (game, library, program)2020-06-100.1.0.3Grinshpon
pinecone20.00Servant bindings to Pinecone (bsd3, library, program, unclassified)2025-04-031.0.0GabrielGonzalez
ping-parser-attoparsec20.01Attoparsec parsers of ping utility (apache, attoparsec, library, parsers, program)2017-09-040.1.0.0frincon
ping-wrapper60.00Haskell Ping wrapper (apache, library, program, system)2017-09-060.1.0.1frincon
pipeclip60.01Open your editor, pipe the output to the system clipboard (bsd2, program, system, text)2015-05-190.1.0.1pharpend
pipes-attoparsec-streaming (deprecated)60.01Streaming parsing in the pipes-core framework with Attoparsec. (bsd3, control, deprecated, library, program)2012-06-200.1.0.0MartinGrabmueller
pipes-lzma182.00LZMA compressors and decompressors for the Pipes package (bsd3, codec, library, program)2020-05-190.2.0.0BenGamari
pipes-p2p-examples (deprecated in favor of pipes-p2p)130.01Examples using pipes-p2p (bsd3, deprecated, network, pipes, program)2014-03-060.3jdnavarro
pipes-protolude90.00Alternate Prelude for the pipes ecosystem (bsd3, library, pipes, program)2016-10-140.1.0.1mckeankylej
pipes-rt170.01A few pipes to control the timing of yields (bsd3, control, library, pipes, program)2015-01-210.5.0imalsogreg
pipes-websockets100.01WebSockets in the Pipes framework. (bsd3, library, program, web)2016-01-140.1.0.0ParnellSpringmeyer, NoonSilk
pisigma200.01A dependently typed core language (bsd3, dependent-types, development, language, library, program)2011-05-180.2.1AndresLoeh, DarinMorrison
pit110.01Account management tool. (library, mit, program, tools)2014-09-270.3.1chiro
pivotal-tracker100.00A library and a CLI tool for accessing Pivotal Tracker API (bsd3, library, program, web)2018-05-140.2.0.0utdemir
pixel-printer70.00A program for turning pixel art into 3D prints (gpl, image, library, program)2021-03-230.1.2ZacharySarver
pixelated-avatar-generator190.00A library and application for generating pixelated avatars. (graphics, image, library, mit, program)2016-08-130.1.3ExcaliburZero
piyo70.00Haskell game engine like fantasy console. (game, library, mit, program)2018-08-080.1.0.0opyapeus
pkggraph60.01Package dependency graph for installed packages (bsd3, development, program)2009-04-230.1RobinGreen
pkgtreediff350.00RPM package tree diff tool (gpl, library, program, utility)2022-10-270.6.0JensPetersen
place-cursor-at100.00A utility for X11 that moves the mouse cursor using the keyboard (desktop, desktop-environment, gpl, gui, program, utility, x11)2021-03-201.0.1unclechu
plaid220.00Plaid.com api integration library (bsd3, data, library, network, plaid, program, web)2020-03-170.1.0.4v0d1ch
platinum-parsing70.00General Framework for compiler development. (bsd3, cli, compilation, compiler, framework, lalr, lexer, library, parser, program)2017-07-190.1.0.0chlablak
playlists190.02Library and executable for working with playlist files. (bsd3, library, program, text)2024-05-150.5.2PeterJones
plexus-synapse260.01Schema-driven CLI for Plexus RPC servers (library, mit, network, program, unclassified)2026-11-094.1.0hypermemetic
plocketed60.01plot data from stdin through socketed (mit, program, web)2017-04-130.1.0.1sencenan
plot-lab (deprecated in favor of plot-gtk-ui, calculator)160.01A plotting tool with Mathematica like Manipulation abilities (deprecated, gpl, math, program)2014-12-170.0.1.9sumitsahrawat
plot-light-examples90.00Example binaries for plot-light (bsd3, graphics, library, program)2018-05-130.3.0.0ocramz
ploterific390.01Basic plotting of tabular data for the command line. (bioinformatics, gpl, library, program)2022-04-140.2.1.4GregorySchwartz
ploton210.00A useful cli tool to draw figures (bsd3, cli, library, program)2020-03-311.2.0.0ishiy
ply-loader470.01PLY file loader. (bsd3, graphics, library, program)2016-12-210.5.0AnthonyCowley
pocket-dns62.01Multi-backend (zookeeper and sqlite) DNS Server using persistent-library (bsd3, library, network, program)2015-02-270.1.1junjihashimoto
podenv80.00A container wrapper (apache, development, library, program)2022-08-100.2.0TristanCacqueray
pointfree932.02Tool for refactoring expressions into pointfree form (library, program, tool)2024-04-251.1.1.12BenMillwood, FelixMartini, SimonHengel
pointfree-fancy220.01Tool for refactoring expressions into pointfree form (bsd3, library, program, tool)2019-11-271.1.1.15vmchale
pointful350.02Pointful refactoring tool (bsd3, development, library, program)2019-09-161.1.0.0MikhailGlushenkov
poke (deprecated in favor of discord-register)50.00Discord verification bot (deprecated, library, mpl, program, web)2020-11-050.0.0.1HughSipiere
poker42.00Texas holdem hand evaluation and simulation. (game, library, mit, poker, program, simulation)2021-08-010.1.0.0ghais
polh-lexicon140.01A library for manipulating the historical dictionary of Polish (deprecated) (bsd3, library, natural-language-processing, program)2013-05-080.2.2JakubWaszczuk
policeman30.00Haskell PVP version adviser (cabal, development, library, mpl, package-management, program, pvp)2020-01-290.0.0.0vrom911
polyglot50.00Haskell to Purescript & Scala 3 transpiler (bsd3, compiler, library, program)2023-05-250.1.1.0albertprz
polysemy-readline92.00Readline effect for polysemy. (bsd2, effect, library, program, user-interfaces)2025-10-040.3.0.0lehmacdj
polyseq (deprecated in favor of free-theorems-seq)100.01Taming Selective Strictness (deprecated, language, library, program, public-domain)2010-10-060.1.2.1DanielSeidel, JanisVoigtlaender
pomodoro90.01pomodoro timer (gpl, office, program)2016-06-050.1.0.1zohl
pomohoro40.00Initial project template from stack (library, program, web)2016-10-100.1.2.4kqr
pontarius-mediaserver (deprecated)110.01Extended Personal Media Network (XPMN) media server (deprecated, media, program)2011-04-130.0.2.0JonKristensen
pony40.01Can I have a pony? (bsd3, program, system)2009-02-221.0DonaldStewart
porcupine-core62.02Express portable, composable and reusable data tasks and pipelines (arrows, combinators, control, data, json, library, mit, numerical, pipes, program, streaming)2019-10-090.1.0.1YvesPares
porcupine-http80.00A location accessor for porcupine to connect to HTTP sources/sinks (arrows, combinators, control, data, library, mit, program, web)2019-10-090.1.0.0YvesPares
porcupine-s380.00A location accessor for porcupine to connect to AWS S3 sources/sinks (arrows, aws, cloud, combinators, control, data, library, mit, program)2019-10-090.1.0.0YvesPares
porpoise40.00A minimalist HTTP server framework written on top of wai (control, library, mit, program)2020-10-050.1.0.0sgschlesinger
porte150.01FreeBSD ports index search and analysis tool (bsd3, library, program, system)2010-08-290.0.4SamyAlBahra
portmidi-utility50.00PortMidi utilities (bsd3, program, sound)2024-02-180.0HenningThielemann
posplyu180.00Sleep tracker for X11, using XScreenSaver extension and manual input. (mit, program, tools)2025-12-290.1.2SergeyAlirzaev
postgres-websockets720.00Middleware to map LISTEN/NOTIFY messages to Websockets (bsd3, database, library, postgresql, program, web, websockets)2026-08-040.12.1.2diogob
postgresql-migration360.01PostgreSQL Schema Migrations (bsd3, database, library, program)2024-03-020.2.1.8andrevdm
postgresql-orm482.52An ORM (Object Relational Mapping) and migrations DSL for PostgreSQL. (database, library, program)2019-02-120.5.1AmitLevy, DavidMazieres
postgresql-replicant200.00PostgreSQL logical streaming replication library (bsd3, database, experimental, library, program)2021-10-300.2.0.1agentultra
postgresql-schema530.00PostgreSQL Schema Management (bsd3, database, library, program)2017-12-060.1.14markfine
postgresql-simple-migration871.751PostgreSQL Schema Migrations (bsd3, database, library, program)2020-01-150.1.15.0ameingast
postgrest822.52REST API for any Postgres database (executable, library, mit, network-apis, postgresql, program)2022-07-129.0.1begriffs, steve_chavez, LaurenceIsla, wolfgangwalther
postgrest-ws (deprecated in favor of postgres-websockets)270.00PostgREST extension to map LISTEN/NOTIFY messages to Websockets (bsd3, deprecated, library, program, web)2017-11-070.4.2.0diogob
postmaster360.01Postmaster ESMTP Server (network, program)2019-01-230.3.3PeterSimons
potato-tool70.01Command line Dreamcast VMU filesystem toolset. (gpl, program, system)2015-07-170.1.0.2RossMeikleham
powermate60.01bindings for Griffin PowerMate USB (hardware, library, mit, program, system)2017-01-101.0EvanMartin, GwernBranwen, ppelleti
pr-tools62.00Decentralized git pull request and code review flows (bsd3, development, git, library, program)2026-02-250.2.0.0mihaigiurgeanu
practice-room100.01Practice Room (bsd3, program, utils)2010-10-260.0.2JinjingWang
precis60.01Diff Cabal packages. (distribution, library, program)2010-06-290.5.0StephenTetley
prednote-test (deprecated in favor of prednote)110.01Tests and QuickCheck generators to accompany prednote. (bsd3, data, deprecated, library, program)2015-01-020.26.0.4OmariNorman
prefetch70.00Prefetch stdin even before stdout is ready (bsd3, concurrency, program)2019-01-240.1.0.0EyalLotem
pretty-display260.01Typeclass for human-readable display (bsd3, library, program, text)2016-11-260.1.10jsermeno
pretty-ghci52.00Functionality for beautifying GHCi (bsd3, library, program, text)2019-04-160.2.0.0harpocrates
pretty-show1922.5100Tools for working with derived `Show` instances and generic inspection of values. (library, mit, program, text)2020-01-301.10IavorDiatchki
pretty-terminal140.017Styling and coloring terminal output with ANSI escape sequences. (bsd3, library, program, terminal)2018-02-030.1.0.0loganmac
prettychart230.01Pretty print charts from ghci. (bsd3, graphics, library, program)2026-08-230.3.0.4tonyday567
primesieve100.00FFI bindings for the primesieve library. (algorithms, foreign, library, math, mit, number-theory, program)2024-03-170.2.0sighingnow
primula-board20.01ImageBoard on Happstack and HSP (program, web)2009-09-150.0.1OlegIvanov
primula-bot80.01Jabber-bot for primula-board ImageBoard (program, web)2009-09-160.0.2OlegIvanov
print-console-colors52.00Print all ANSI console colors (bsd3, console, library, program)2019-09-170.1.0.0cdepillabout
printxosd40.01Simple tool to display some text on an on-screen display (bsd3, graphics, program)2008-11-220.1DonaldStewart
priority-sync120.02Cooperative task prioritization. (bsd3, concurrency, library, program)2011-04-060.2.1.1ChristopherLaneHinson
proarrow170.00Category theory with a central role for profunctors (bsd3, categories, library, math, program)2026-10-230.4.0.0SjoerdVisscher
prob-fx110.00A library for modular probabilistic modelling (bsd3, library, program, statistics)2022-07-170.1.0.2minnguyen
proctest140.01An IO library for testing interactive command line programs (library, mit, program, testing)2025-02-040.1.3.1NiklasHambuechen
prof-flamegraph40.00Generate flamegraphs from ghc RTS .prof files (mit, program, testing)2018-11-191.0.0fommil
prof2dot90.01Convert GHC profiles into GraphViz's dot format (bsd3, development, program)2008-08-040.4.1GregoryWright
prof2pretty60.01generate pretty source from time/allocation profiles (bsd3, development, profiling, program)2012-06-300.1.0.0ClaudeHeilandAllen
profiterole130.01Restructure GHC profile reports (bsd3, development, program)2017-06-020.1NeilMitchell
profiteur622.251Treemap visualiser for GHC prof files (bsd3, development, library, profiling, program)2026-01-200.4.7.1JasperVanDerJeugt
profunctor-optics230.00A compact optics library compatible with the typeclasses in profunctors. (bsd3, data, lenses, library, profunctors, program)2020-03-090.0.2cmk
progressive80.01Multilabel classification model which learns sequentially (online). (bsd3, program, unclassified)2013-11-120.1.0.1GrzegorzChrupala
project-m361172.00Relational Algebra Engine (library, mit, program, public-domain, relational-algebra)2026-03-041.2.6agentm
prolog-graph100.01A command line tool to visualize query resolution in Prolog. (language, program, public-domain)2011-09-210.1.0.2MatthiasBartsch
prometheus-effect (deprecated in favor of prometheus-client, wai-middleware-prometheus, prometheus-metrics-ghc)52.00Instrument applications with metrics and publish/push to Prometheus (bsd3, deprecated, library, program, unclassified)2017-11-081.1.0OliverCharles
prometheus-wai-middleware70.00Instrument a wai application with various metrics (bsd3, library, program, web)2020-07-301.0.1.0wraithm, IanShipman
proof-assistant-bot160.00Telegram bot for proof assistants (dependent-types, library, mit, program)2024-02-070.2.2swamp_agr
propellor2742.01property-based host configuration management in haskell (bsd2, library, program, utility)2025-08-105.18JoeyHess
proteome550.01Neovim Project Manager (library, neovim, program)2022-09-260.9.10tek
proto-lens-protoc980.011Protocol buffer compiler for the proto-lens library. (bsd3, data, library, program)2026-04-160.9.0.1JudahJacobson, gnezdo, JinwooLee
proto3-suite410.01A higher-level API to the proto3-wire library (apache, codec, library, program)2026-05-180.10.0GabrielGonzalez, ParnellSpringmeyer, evanrelf, rizoid, jcarr_awake
protobuf-native50.01Protocol Buffers via C++ (bsd3, data, library, program)2014-10-161.0.0.1MaxwellSwadling
protobuf-simple320.01Simple Protocol Buffers library (proto2) (data, library, mit, program)2021-07-180.1.1.1mrijkeboer
prove-everywhere-server110.01The server for ProveEverywhere (bsd3, program, web)2014-09-130.1.1ShoheiYasutake
prune-juice190.00Prune unused Haskell dependencies (development, library, mit, program)2021-11-120.7dfithian
psc-ide (deprecated in favor of purescript)192.00Language support for the PureScript programming language (deprecated, development, library, mit, program, purescript)2016-02-020.6.1kritzcreek
pstemmer40.00A Haskell Implementation of the Porter Stemmer (bsd3, library, natural-language-processing, program)2016-08-020.1.0.0wapxmas
pty-mcp-server860.00pty-mcp-server (ai, apache, program)2026-07-130.2.2.0phoityne_hs
pub160.01Pipe stdin to a redis pub/sub channel (bsd3, program, utility)2017-05-293.0.0ParnellSpringmeyer
publish220.00Publishing tools for papers, books, and presentations (mit, program, text)2023-02-132.5.3AndrewCowie
pubnub130.01PubNub Haskell SDK (api, cloud, library, mit, program)2014-05-051.1.1tsloughter
pubsub80.01A library for Google/SixApart pubsub hub interaction (bsd3, library, program, web)2009-08-090.11SigbjornFinne
puffytools50.01A CLI assistant (bsd3, library, program, utility)2014-12-060.0.0.1pharpend
pugs-DrIFT170.02DrIFT with pugs-specific rules. (bsd3, library, program, pugs)2015-08-152.2.3.20150815AudreyTang, JeffShaw
puppetresources (deprecated in favor of language-puppet)240.01A program that displays the puppet resources associated to a node given .pp files. (deprecated, gpl, program, system)2013-05-160.4.2SimonMarechal
pure-priority-queue-tests90.01Tests for the pure-priority-queue package (bsd3, data, program)2009-10-120.12BradLarsen
pure-zlib700.04A Haskell-only implementation of zlib / DEFLATE (bsd3, codec, library, program)2021-10-300.8.0AdamWick, EricMertens, galoisinc
purenix90.00Nix backend for PureScript. Transpile PureScript code to Nix. (bsd3, library, program, unclassified)2022-10-301.1cdepillabout, jonascarpay
purescheme-wai-routing-core140.00Simple Routing functions for Wai Applications (apache, library, program, web)2020-11-100.1.3.0frincon
purescript7232.759PureScript Programming Language Compiler (bsd3, language, library, program)2024-02-070.15.15PhilFreeman, hdgarrood, kritzcreek, garyb, LiamGoodacre, PureFunctor, kl0tl, jalexm, f_f
purescript-bundle-fast50.01A fast alternative to Purescript's `psc-bundle` to be used during development (development, mit, program)2015-07-310.1.0.1BitConnor
purescript-tsd-gen60.00TypeScript Declaration File (.d.ts) generator for PureScript (bsd3, language, library, program)2019-06-210.3.0.0aratamizuki
pursuit-client (deprecated)60.00A cli client for pursuit (bsd3, deprecated, library, program, web)2016-04-300.1.0gilmi
push-notify-apn960.00Send push notifications to mobile iOS devices (bsd3, cloud, library, mobile, network, program)2025-07-020.5.0.0hc, MarcScholten
pushme320.01Synchronize multiple filesets across machines using rsync (bsd3, library, program, system)2026-08-123.1.0JohnWiegley
puzzle-draw170.01Creating graphics for pencil puzzles. (graphics, library, mit, program)2018-07-180.3.0.0vollmert
puzzle-draw-cmdline (deprecated in favor of puzzle-draw)110.01Creating graphics for pencil puzzles, command line tools. (deprecated, graphics, mit, program)2014-04-190.1.0.4vollmert
pvd100.01A photo viewer daemon application with remote controlling abilities. (bsd3, image-viewer, program)2011-04-151.1.1RickardNilsson
pvss140.00Public Verifiable Secret Sharing (crypto, mit, program)2017-08-010.2.0VincentHanquez
pwstore-cli140.01Command line interface for the pwstore library (console, cryptography, gpl, program)2012-11-120.4RobertHelgesson
pxsl-tools70.01Parsimonious XML Shorthand Language--to-XML compiler (program, xml)2008-08-251.0.1TomMoertel
python-pickle180.01Serialization/deserialization using Python Pickle format. (bsd3, development, library, program)2024-02-100.3.0VoMinhThu, tacopeland
qchas182.00A library for implementing Quantum Algorithms (algorithms, bsd3, library, program)2018-07-291.1.0.123ars
qhs220.00Command line tool qhs, SQL queries on CSV and TSV files. (console, library, mit, program)2026-08-230.4.4itchyny
qnap-decrypt180.00Decrypt files encrypted by QNAP's Hybrid Backup Sync (bsd3, cryptography, library, program)2019-07-060.3.5alexkazik
qr80.00Pure Haskell QR encoder library and command line tool (bsd3, data, library, program)2021-04-100.2.0.0PaoloCapriotti
qr-repa30.00Library to generate QR codes from bytestrings and objects and scale image files (bsd3, data, library, program)2016-12-150.1.0.0
qtah-examples300.01Example programs for Qtah Qt bindings (graphics, lgpl, program)2025-02-010.9.0khumba
qtah-generator340.04Generator for Qtah Qt bindings (graphics, lgpl, library, program)2026-03-170.9.1khumba
quantfin140.01Quant finance library in pure Haskell. (bsd3, finance, library, program)2015-06-130.2.0.0tdees
quantities80.01Unit conversion and manipulation library. (bsd3, data, library, math, physics, program)2015-11-070.4.0jdreaver
quantum-random160.00Retrieve, store and manage real quantum random data. (library, mit, program, scientific)2017-01-140.6.4Cliff_Harvey
quarantimer110.00Coronavirus quarantine timer web app for your things (bsd2, health, program)2020-04-221.20200422JoeyHess
qudb110.01Quite Useless DB (database, lgpl, program)2011-09-290.0.1JanStepien
quenya-verb40.01Quenya verb conjugator (agpl, language, library, program)2015-04-030.0.1kaashif
queue-sheet110.00queue sheet utility (library, mit, program, utils)2025-01-030.8.0.1TravisCardwell
quickbench120.00quick & easy benchmarking of command-line programs (development, library, program)2021-10-071.0.1SimonMichael
quickcheck-script110.01Automated test tool for QuickCheck. (bsd3, program, testing)2010-05-060.1.1.1KidoTakahiro
quickpull (deprecated in favor of tasty-th)70.02Generate Main module with QuickCheck tests (bsd3, deprecated, library, program, testing)2015-03-200.4.2.2OmariNorman
quickterm102.00An interface for describing and executing terminal applications (development, gpl, library, program)2017-01-180.2.4.0sgschlesinger
quicktest110.01A reflective batch tester for Haskell. (bsd3, program, testing)2010-12-250.1.3DavidSiegel
quipper-algorithms50.01A set of algorithms implemented in Quipper. (bsd3, library, program, quipper)2019-12-300.9.0.0PeterSelinger
quipper-demos60.01Miscellaneous code snippets that illustrate various Quipper features. (bsd3, library, program, quipper)2019-12-300.9.0.0PeterSelinger
quipper-language50.04Quipper, an embedded functional programming language for quantum computation. (bsd3, library, program, quipper)2019-12-300.9.0.0PeterSelinger
quipper-tools50.01Miscellaneous stand-alone tools for Quipper (bsd3, library, program, quipper)2019-12-300.9.0.0PeterSelinger
quoridor-hs80.01A Quoridor implementation in Haskell (bsd3, game, library, program)2015-01-240.1.1.2talw
qute-cli90.00Command-line interface for the Qute software analysis framework. (language, library, program)2026-08-310.1.1nmeum
qux80.01Command line binary for working with the Qux language (bsd3, program, qux)2015-10-100.2.0.0hjwylde
r-glpk-phonetic-languages-ukrainian-durations600.00Can be used to calculate the durations of the approximations of the Ukrainian phonemes. (Ukrainian, glpk, language, library, math, mit, phonetic-languages, program)2023-02-030.5.0.0OleksandrZhabenko
r3x-haskell-sdk40.00 (bsd3, library, program, unclassified)2019-04-140.1.0.0rubixfunctions
raaz882.250Fast and type safe cryptography. (codec, library, program, raaz)2026-08-240.3.12PiyushKurur
rabocsv2qif210.01A library and program to create QIF files from Rabobank CSV exports. (finance, library, program)2017-01-092.0.0SanderVenema
radix30.01Command-line tool for emitting numbers in various bases. (bsd3, program, utils)2015-02-201.0.0.0ThomasEding
rail-compiler-editor80.01Compiler and editor for the esolang rail. (language, library, mit, program)2014-07-170.3.0.0bubuiic
raketka330.01distributed-process node (library, network-control, program, public-domain)2025-10-101.2.0procione
randfile40.01Program for picking a random file (bsd3, program, system)2011-10-190.1.0.0JoeyAdams
random-strings120.05Generate random strings with specific qualities (bsd3, library, program, test, text-)2016-07-260.1.1.0mikehat
random-variates282.00"Uniform RNG => Non-Uniform RNGs" (library, mit, program, statistics)2016-05-200.1.5.1kpratt
randomgen60.01A fast, SMP parallel random data generator (bsd3, program, system)2008-11-100.1DonaldStewart
randsolid70.01Set the background of your root window to a random colour. (program, public-domain, system)2013-10-250.3JohannesMartinsson
rank-product280.02Find the rank product of a data set. (bioinformatics, gpl, library, program)2018-09-120.2.2.0GregorySchwartz
rasa-example-config210.01Example user config for Rasa (config, gpl, program)2017-02-200.1.4ChrisPenner
rascal80.01A command-line client for Reddit (library, mit, program, web)2014-01-131.1.6soli
rasterific-svg852.02SVG renderer based on Rasterific. (bsd3, graphics, library, program, svg)2018-10-080.3.3.2VincentBerthoux
rating-chgk-info90.00Client for rating.chgk.info API and CSV tables (documentation in Russian) (bsd3, library, program, utility)2019-07-080.3.6.5MZiatdinov
rattle90.00Forward build system, with caching and speculation (bsd3, development, library, program)2020-05-270.2NeilMitchell
rattletrap5800.01Parse and generate Rocket League replays. (game, library, mit, program)2025-08-0614.1.4fozworth
rbr130.01Mask nucleotide (EST) sequences in Fasta format (bioinformatics, program)2010-09-090.8.6GwernBranwen, KetilMalde
rc130.00Reservoir Computing, fast RNNs (bsd3, library, machine-learning, program)2018-07-080.3.0.0penkovsky
rcu240.00Read-Copy-Update for Haskell (bsd3, data, library, program)2023-08-090.2.7EdwardKmett, EricMertens, ryanglscott
rdf4h1072.54A library for RDF processing in Haskell (bsd3, library, program, rdf)2026-02-055.2.2RobStewart
rdioh170.01A Haskell wrapper for Rdio's API. (api, library, mit, network, program, web)2013-06-070.2.1AdityaBhargava
rds-data-codecs140.00Codecs for use with AWS rds-data (bsd3, data, library, program)2024-03-010.0.0.3haskellworks
rds-data-polysemy30.00Codecs for use with AWS rds-data (bsd3, data, library, program)2025-06-150.1.0.0haskellworks
react-tutorial-haskell-server70.01react-tutorial web server (agpl, program, web)2016-04-041.0.0alexander
reaction-logic60.01pluggable pure logic serializable reactor (bsd3, library, program, reactivity)2010-11-162010.11.17PaoloVeronelli
reactive-thread30.01Reactive programming via imperative threads (bsd3, frp, library, program)2012-11-180.3.2.1MattGlazar
read-ctags50.00 (library, mit, program, unclassified)2019-12-220.1.0.0joshuaclayton
readability60.00Extracts text of main article from HTML document (bsd3, html, library, program, text)2020-07-090.1.0.0geyaeb
readline-in-other-words80.00Readline effect for in-other-words. (bsd2, command-line, effect, haskeline, in-other-words, library, program, user-interfaces)2021-11-050.1.0.2lehmacdj
readme-lhs (deprecated)420.01Literate programming support. (bsd3, deprecated, development, library, program)2020-11-270.8.1tonyday567
readpyc140.01Read and pretty print Python bytecode (.pyc) files. (bsd3, language-, program)2013-06-210.2.1BerniePope
real-dice190.00Random number generation based on physical media touched by humans (data, library, math, mit, program)2025-03-140.1.0.5kaBeech
recommender-als120.00Recommendations using alternating least squares algorithm (bsd3, library, numeric, program)2024-10-130.2.2.0kaol
record-dot-preprocessor952.05Preprocessor to allow record.field syntax (bsd3, development, library, program)2024-01-130.2.17NeilMitchell
record-preprocessor190.01Compiler preprocessor introducing a syntactic extension for anonymous records (compiler, library, mit, preprocessor, program, records)2016-10-240.1.1.1NikitaVolkov
recursive-line-count20.01Count lines in files and display them hierarchically (bsd3, program, tools)2012-04-020.1JoeyAdams
redact80.00hide secret text on the terminal (library, mit, program, utils)2024-12-290.6.0.0TravisCardwell
redo72.01software build system, make replacement, implementation of djb's redo (distribution, program, public-domain)2013-07-080.2.0ChrisForno
reduce-equations40.00Simplify a set of equations by removing redundancies (bsd3, library, math, program)2016-11-120.1.1.0chriswarbo
reduxwise40.00Static analysis tool for Rust embedded systems complexity (bsd3, development, embedded, library, program, static-analysis)2025-10-100.1.0.0vertexclique
refh40.01A command-line tool for pasting to https://www.refheap.com (mit, program, unclassified)2013-02-240.1.1AnthonyGrimes
reflex-backend-socket140.00Reflex bindings for TCP sockets (bsd3, frp, library, network, program)2022-05-210.2.0.1qfpl, jack
reflex-backend-wai50.00Reflex interface to `wai` (bsd3, frp, library, program, web)2019-04-080.1.0.0qfpl
reflex-basic-host (deprecated in favor of reflex)80.01A basic Reflex host for backend work (bsd3, deprecated, frp, library, program)2019-10-290.2.0.1qfpl, jack
reflex-dom-fragment-shader-canvas120.00A reflex-dom widget to draw on a canvas with a fragment shader program (library, mit, program, web)2018-10-120.2JoachimBreitner
reflex-gadt-api402.00Interact with a GADT API in your reflex-dom application. (api, bsd3, frp, library, network, program)2026-10-130.4.0.0CaleGibbard, JohnEricson, RyanTrinkle, abrar, alexfmpe, maralorn, ymeister
reflex-ghci500.00A GHCi widget library for use in reflex applications (bsd3, development, frp, library, program)2023-08-020.2.0.1JohnEricson, RyanTrinkle, abrar, 3noch
reflex-gi-gtk140.00Helper functions to use reflex with gi-gtk (frp, library, mpl, program)2024-03-080.2.0.1Kritzefitz
reflex-gloss-scene50.00A simple scene-graph using reflex and gloss (bsd3, frp, library, program)2015-10-200.1.2saulzar
reflex-process502.01Reflex FRP interface for running system processes (bsd3, frp, library, program, system)2025-12-260.3.3.2JohnEricson, RyanTrinkle, abrar, 3noch
reflex-sdl2182.00SDL2 and reflex FRP (game, library, mit, program)2024-08-210.3.0.3SchellScivally
reflex-vty1552.02Reflex FRP host and widgets for VTY applications (bsd3, frp, library, program, vty)2026-10-131.3.0.0JohnEricson, RyanTrinkle, abrar, 3noch, AdriaanLeijnse
regex-examples720.01Tutorial, tests and example programs for regex (bsd3, program, text)2022-06-201.1.0.2ChrisDornan
regex-genex500.03From a regex, generate all possible strings it can match (library, program, regex, text)2015-09-240.7.0AudreyTang
regex-posix-unittest40.01Unit tests for the plaform's Posix regex library (bsd3, program, text)2010-06-111.1ChrisKuklewicz
regex-tdfa-unittest (deprecated in favor of regex-tdfa)40.01Unit tests for the regex-tdfa (bsd3, deprecated, program, text)2010-10-171.1ChrisKuklewicz
regexchar330.01A POSIX, extended regex-engine. (library, program, regex, text)2020-06-300.9.0.18AlistairWard
reheat40.01to make notes and reduce impact on idle time on writing other programms. (program, tools)2014-04-290.1.5palo
rehoo (deprecated in favor of hoogle)240.01Rebuild default.hoo from many .hoo files in the current directory (bsd3, deprecated, development, program)2014-04-120.3.1JohnWiegley
rei322.01Process lists easily (data, mit, program)2016-12-040.4.0.3kerkomen
reify100.01Serialize data (data, library, program)2009-01-190.1.1GwernBranwen
relay-pagination-servant150.00RelayPage servant combinator for Relay-style cursor pagination (bsd3, library, program, servant, web)2026-10-060.1.1.2shinzui
releaser130.00Automation of Haskell package release process (apache, development, library, program)2023-10-310.3.0.2RobertHensing, domenkozar
reload100.00A web based Haskell IDE (bsd3, library, program, web)2016-08-020.0.0.1JeanPhilippeMoresmau
relocant60.00A PostgreSQL migration CLI tool and library (bsd2, library, program, unclassified)2025-09-231.1.0MatveyAksenov
remark50.00A DSL for marking student work (bsd3, library, program, web)2017-01-100.0.0.0oleks
remarks450.00A DSL for marking student work (bsd3, library, program, web)2017-02-170.1.13oleks
remote-debugger130.01Interface to ghci debugger (bsd3, debug, program)2015-08-060.2.2atsky
repa-examples990.01Examples using the Repa array library. (bsd3, data-structures, program)2024-12-083.4.2.0BasVanDijk, BenLippmeier, PepeIborra, TrevorMcDonell, vmchale, LaurentRDC
repa-v4l270.01Provides high-level access to webcams. (graphics, library, program)2012-07-180.2.0.0ChristianGosch
replicant60.00Initial project template from stack (bsd3, library, program, web)2016-07-070.1.0.0jdabbs
repo-based-blog30.01Blogging module using blaze html for markup (bsd3, library, program, web)2014-11-140.0.1saep
req-oauth2100.01Provides OAuth2 authentication for use with Req (command-line, library, mit, program)2021-11-020.1.0.1rcook
req-url-extra80.01Provides URI/URL helper functions for use with Req (library, mit, network, program, web)2019-02-130.1.1.0rcook
require630.01Scrap your qualified import clutter (apache, library, other, program)2021-07-260.4.11NickSeagull
reserve100.01Reserve reloads web applications (mit, program, web)2021-07-120.1.2SimonHengel
resistor-cube160.01Compute total resistance of a cube of resistors (bsd3, math, program)2021-12-050.0.1.4HenningThielemann
resolve-trivial-conflicts (deprecated in favor of git-mediate)370.01Remove trivial conflict markers in a git repository (deprecated, development, gpl, program)2016-12-200.3.2.4EyalLotem
resource-embed40.01Embed data files via C and FFI. (development, mit, program)2015-04-040.1.0.0TobiasDammers
respond120.01process and route HTTP requests and generate responses on top of WAI (bsd3, library, program, web)2014-12-201.1.0raptros
restman220.00Web request TUI program. (bsd2, library, program, web)2026-05-140.7.6.0krakrjak
restyle50.01Convert between camel case and separated words style. (development, library, mit, program)2010-01-010.1.0DanielFischer
ret260.00A tool that returns to a landmark parent directory (mit, program, tool)2023-08-130.5.0.0anselmschueler
retryer100.01Retry failed commands (mpl, program, system)2014-12-130.1.0.1dgonyeo
revdectime110.01A French revolutionary decimal time (metric) clock (program, utils)2011-06-070.1.1KamilStachowski
reversi60.01Text-only reversi (aka othelo) game (game, lgpl, program)2011-05-030.1.1GuilhermeCavalcanti
rewrite160.01open file and rewrite it with new contents (bsd3, program, system)2013-11-050.10OmariNorman
rewrite-inspector340.00Inspection of rewriting steps (bsd3, inspection, library, program, rewriting, terminal, user-interface)2019-10-280.1.0.11omelkonian
rexparse70.00A library to handle rexpaint file format (bsd3, codec, library, program)2026-08-310.1.0.0raveline
rezoom (deprecated)90.01Github resume generator (deprecated, program, utils)2012-02-130.0.4JoelTaylor
rhbzquery260.00Bugzilla query tool (gpl, program, utils)2025-01-200.4.5JensPetersen
rhine-bayes280.00monad-bayes backend for Rhine (bsd3, frp, library, program)2026-06-071.8turion
rhine-gloss620.00Gloss backend for Rhine (bsd3, frp, library, program)2026-06-071.8turion
rhine-terminal270.00Terminal backend for Rhine (bsd3, frp, library, program)2026-06-071.8turion
rhythm-game-tutorial270.01Haskell rhythm game tutorial (bsd3, graphics, monads, program)2015-02-230.1.1FumiakiKinoshita
riak-protobuf-lens140.01Lenses for riak-protobuf (library, network, program)2021-06-160.25.0.0lambda_foo
ribosome-app70.00CLI for Ribosome (library, neovim, program)2022-08-290.9.9.9tek
riemann90.00A Riemann client for Haskell (library, mit, network, program)2016-02-190.1.1.0JosephAbrahamson, telser, abailly
riff100.02RIFF parser for Haskell (data, library, mit, program)2015-04-240.3.0.1RobertMassaioli
riichi-scoring422.00A CLI tool for interpreting and scoring Riichi Mahjong hands. (bsd3, cli, data, library, program, utility)2026-08-030.7.0.0ZakWormald
rio-app50.05Generic App type for rio. (bsd3, control, library, program)2021-06-150.1.0.0AlexanderBondarenko
rio-process-pool90.00A library for process pools coupled with asynchronous message queues (bsd2, concurrency, library, program)2021-06-221.0.1SvenHeyll
riot30.01Riot is an Information Organisation Tool (program, system)2008-08-261.20080618DonaldStewart
risc386260.01Reduced instruction set i386 simulator (bsd3, compilers-interpreters, education, program)2023-09-280.0.20230928AndreasAbel
risk-weaver120.00A DSL for Risk-oriented Object Detection Requirements (development, library, mit, program)2024-03-180.1.0.2junjihashimoto
rivet (deprecated)50.01A project management tool for Haskell applications. (bsd3, deprecated, program, unclassified)2015-05-170.1.0.0DanielPatterson
rivet-autoimporter30.01Database migration library; automatic importer. (bsd3, database, program)2016-07-240.1.0.0DanielPatterson
rl-satton190.00Collection of Reinforcement Learning algorithms (bsd3, library, machine-learning, program)2016-10-040.1.2.4SergeyMironov
rlglue30.01A Haskell codec for RL-Glue. (apache, codec, library, program)2015-07-010.2.2.0rofer
rlwe-challenges110.00Ring-LWE/LWR challenges using Lol. (crypto, gpl, library, program)2017-02-240.1.0.1crockeea
rncryptor240.02Haskell implementation of the RNCryptor file format (library, mit, network, program)2026-11-050.4.0.0AlfredoDiNapoli
rob110.00Simple projects generator (cli, library, mit, program)2020-12-210.0.5gianlucaguarini
robin80.01A build daemon for Haskell development (development, gpl, program)2015-09-100.1.0.0KarlVoelker
robin-hood-profit30.00Calculate per instrument profit from Robin-Hood activity report (bsd3, library, program, system)2025-09-180.0.2DaniilIaitskov
roc-cluster-demo60.01Gloss interactive demo for roc-cluster package (bsd3, program, web)2017-05-170.1.0.0NCrashed
roguestar40.01Sci-fi roguelike game. Client application. (game, program)2011-04-080.6.0.1ChristopherLaneHinson
roguestar-engine210.01Sci-fi roguelike game. Backend. (game, program)2011-04-080.6.0.1ChristopherLaneHinson, GwernBranwen
roguestar-glut50.01Sci-fi roguelike game. GLUT front-end. (game, program)2011-04-080.6.0.1ChristopherLaneHinson
rollbar-cli70.00Simple CLI tool to perform commons tasks such as tracking deploys. (library, mit, network, program)2024-07-231.1.0jsl, jpvillaisaza, stackbuilders, sestrella, DavidMazarro
roller200.01Playing with applicatives and dice! (acme, gpl, library, program)2016-02-230.1.7ljsc, PiotrJustyna
rosa310.01Query the namecoin blockchain (gpl, program, utility)2022-06-120.6.0.0rnhmjoj
roshask70.01Haskell support for the ROS robotics framework. (bsd3, library, program, robotics)2015-06-220.2.1AnthonyCowley
rosmsg-bin90.01ROS message management tools (bsd3, program, robotics)2016-09-130.1.0.0akru
rospkg60.00ROS package system information (bsd3, library, program, robotics)2016-09-120.2.3.0akru
route-generator240.01Utility to generate routes for use with yesod-routes (program, utility)2013-09-280.6.1StephenWeber
rp-tree652.00Random projection trees (bsd3, data, data-mining, data-structures, library, machine-learning, program)2021-11-040.7.1ocramz
rpc-framework262.01a remote procedure call framework (bsd3, library, network, program, web)2012-09-052.0.0.2MatthewMirman
rpf160.01Receiver Policy Framework (bsd3, network, program)2013-12-270.2.5KazuYamamoto
rpmbuild-order660.01Sort RPM packages in dependency order (bsd3, distribution, library, program)2025-11-100.4.13JensPetersen
rpmostree-update60.00rpm-ostree update wrapper that caches change info (bsd3, program, utility)2023-04-100.1.2JensPetersen
rsi-break90.00Let your mind know that your hands need a rest! (bsd2, graphics, library, program)2023-10-260.1.0.0RubenAstudillo
rss2irc370.01watches an RSS/Atom feed and writes it to an IRC channel (bsd3, irc, program)2018-06-291.2DonaldStewart, SimonMichael
rtcm720.01Haskell bindings for RTCM. (bsd3, library, network, program)2019-04-050.2.39peddie, markfine, mookerji
rtk160.00Parser and rewrite facility generator from grammar specifications (development, language, library, mit, program)2026-07-020.12prozaktm
rts-loader (deprecated)120.00Dynamically load Haskell libraries (deprecated, distribution, gpl, library, program)2016-06-230.0.0.3DanielG
ruler80.01Ruler tool for UHC (bsd3, development, program)2018-01-280.4.1.0AtzeDijkstra, JeroenBransen
ruler-core70.01 (development, program)2010-12-011.0ArieMiddelkoop
rungekutta2102.00Explicit Runge-Kutta methods of various orders (fork of 'rungekutta') (bsd3, library, numeric, program)2022-03-111.0.3ocramz
runghc150.01runghc replacement for fast repeated runs (console, gpl, program)2014-09-090.1.0.3MikeZuser
runhs282.00Stack wrapper for single-file Haskell programs. (bsd3, program, tools)2021-02-011.0.0.9danielbrice
runmany130.01Run multiple commands, interleaving output and errors (bsd3, data, nix, program, system)2018-04-260.1.3JohnWiegley
rws60.01Packet Generation (bsd3, network, program)2013-06-100.1.1.2KarlKnutsson
rz-pipe42.00Pipe interface for Rizin (library, mit, program, reverse-engineering, security)2021-01-200.1.0FlorianMaerkl
rzk1002.01An experimental proof assistant for synthetic ∞-categories (bsd3, dependent-types, library, program)2026-11-050.11.4NickolayKudasov
s-expression70.00simple general-purpose s-expressions (data-, library, mit, program)2017-05-010.0.0sboo
sajson80.00Fast JSON parsing powered by Chad Austin's sajson library (json, library, mit, program, text, web)2021-09-140.2.0.0kccqzy
sak302.00Compression command-line tool (bsd3, commandline, compression, program)2024-04-200.1.3.2vmchale
salmon-apps120.00A set of utilities built with Salmon at their core. (bsd3, development, library, program)2026-10-310.3.0.0LucasDiCioccio
salmon-ops110.02IO builtins and command line plumbing for Salmon operations. (bsd3, development, library, program)2026-10-310.3.0.0LucasDiCioccio
salvia-demo60.01Demo Salvia servers. (bsd3, library, network, program, web)2010-03-211.0.0SebastiaanVisser
samtools-conduit140.01Conduit interface to SAM/BAM format files through samtools (bioinformatics, library, mit, program)2014-11-290.1.1.0NicholasIngolia
sandman220.01Manages Cabal sandboxes to avoid rebuilding packages. (development, mit, program)2016-05-240.2.0.1abhinav
sandwatch62.00record historical command runtimes for later prediction (bsd3, command-line, library, program)2024-04-290.1.1.0ShaeErisson
sandwich990.07Yet another test framework for Haskell (bsd3, library, program, testing)2026-06-060.3.1.0thomasjm
sandwich-slack180.00Sandwich integration with Slack (bsd3, library, program, testing)2026-06-060.2.0.0thomasjm
sarsi190.00A universal quickfix toolkit and his protocol. (apache, development, library, program)2021-04-270.0.5.2aloiscochard
sat100.01CNF SATisfier (algorithms, program)2007-11-221.1.1AndriiZvorygin
sat-micro-hs80.01A minimal SAT solver (algorithms, program)2008-02-270.1.1DenisBueno
satchmo-examples170.01examples that show how to use satchmo (algorithms, program)2011-01-121.8.1JohannesWaldmann
sauron80.00The eye that watches everything you did on Twitter (library, mpl, program, unclassified)2022-09-020.0.0.0shersh
sbp3750.01SwiftNav's SBP Library (library, mit, network, program)2026-09-166.5.2ljbade, snav_jason, pcswiftnav
sbp2udp (deprecated)70.01SBP to UDP (bsd3, deprecated, network, program)2016-06-020.0.1markfine
sc2hs90.00An interface to the Starcraft II bot API (ffi, game, library, network, program)2019-02-060.1.0.0spacekitteh
scaleimage50.01Scale an image to a new geometry (bsd3, graphics, program)2008-06-190.1DonaldStewart
scalp-webhooks40.00Test webhooks locally (apache, library, program, web)2015-09-150.1.2.0boblong
scan230.01lexical style suggestions for source code (bsd3, development, program)2014-01-090.1.0.9ChristianMaeder
scat170.01Generates unique passwords for various websites from a single password. (bsd3, password, program)2017-09-281.1.0.3RomainEdelmann
scc600.01Streaming component combinators (combinators, concurrency, control, library, program)2026-01-190.8.4.1MarioBlazevic
schedevr150.01Marge schedules and show EVR (bsd3, development, program)2014-04-260.1.0.6YoshikuniJujo
schedule-planner210.01Find the ideal lesson layout (convenience, data, lgpl, planning, program)2015-06-211.0.1.1justus
scheduling40.00An interview scheduler using constraint satisfaction and Google Sheets (bsd3, cloud, library, program, time)2022-01-120.1.0.0TomLippincott
scholdoc50.02Converts ScholarlyMarkdown documents to HTML5/LaTeX/Docx format (library, program, text)2014-10-170.1.3timtylin
scholdoc-citeproc30.01Scholdoc fork of pandoc-citeproc (bsd3, library, program, text)2014-10-170.6timtylin
scidb-hquery102.00Haskell query for SciDB via shim (client, database, gpl, library, program)2020-03-232.8.0.437mdgabriel
scion-browser720.01Command-line interface for browsing and searching packages documentation (bsd3, development, library, program)2015-02-070.5.0AlejandroSerrano, JeanPhilippeMoresmau
scons2dot90.01Generates graphviz file of scons dependency information (development, program)2010-02-240.9LeandroPenz
scope-cairo110.01An interactive renderer for plotting time-series data (bsd3, development, library, program)2012-11-190.8.0.1ConradParker
scotty-format60.01Response format helper for the Scotty web framework. (apache, library, program, web)2016-12-270.1.1.0potomak
scotty-view40.00 (library, mit, program, web)2016-04-141.0.0Philemon
scp-streams30.01An SCP protocol implementation. (bsd3, library, program, system)2014-01-070.1.0VoMinhThu
scrabble-bot90.01Scrabble play generation. (bsd3, game, program)2013-04-300.1.0.0AndrasKovacs
scrapbook70.00collect posts of site that is wrote in config yaml using feed or scraping (library, mit, program, web)2020-12-050.5.0matsubara0507
screenshot-to-clipboard60.00Take screenshot and copy it to the system clipboard. (bsd3, library, program, utils)2022-06-040.1.0.0cdepillabout
screp70.00grep-like CLI using Parsec parsers instead of regex (bsd3, console, library, program, text)2026-03-010.3.0.0lazyLambda
script-monad80.01Stack of error, reader, writer, state, and prompt monad transformers (bsd3, control.monad, library, program)2022-06-260.0.4nbloomf
scripths760.00GHCi scripts for standalone execution and Markdown documentation. (data, library, mit, program)2026-08-160.5.5.0mchav
scrobble90.01Scrobbling server. (bsd3, library, network, program)2014-11-300.2.1.1ChrisDone
scrod240.00Worse Haskell documentation (documentation, library, program)2026-03-081.1.0.0fozworth
scroll252.01scroll(6), a roguelike game (game, gpl, program)2025-02-281.20250228.2JoeyHess
scrz40.01Process management and supervision daemon (program, system)2014-02-010.0.0.1wereHamster
scythe40.00Fast CSV lexing on ByteString (bsd3, data, library, program)2018-09-190.2.0.0DavidJohnson
scyther-proof300.01Automatic generation of Isabelle/HOL correctness proofs for security protocols. (program, security, theorem-provers)2015-06-210.10.0.1SimonMeier, lochbihl
sd-jwt30.00Selective Disclosure for JSON Web Tokens (RFC 9901) (bsd3, identity, json-web-token, jwt, library, privacy, program, rfc-9901, selective-disclosure, web)2026-01-100.1.0.1yaronf
sdl-try-drivers80.00small testing tool for sdl2 and accelerated drivers (graphics, mit, program)2019-12-010.0.0.2typetetris
sdl2-gfx130.06Haskell bindings to SDL2_gfx (foreign, graphics, library, mit, program)2021-09-150.3.0.0SinisaBidin, locallycompact
sdl2-image290.012Haskell bindings to SDL2_image (foreign, graphics, image, library, mit, program)2021-09-152.1.0.0SinisaBidin, cailei, ccll, locallycompact
sdl2-mixer230.05Haskell bindings to SDL2_mixer (bsd3, foreign, library, program, sound)2021-09-141.2.0.0SinisaBidin, locallycompact
sdl2-sprite60.00Sprite previewer/animator (bsd3, library, program, web)2018-05-120.0.1ChrisDone
secd80.00A Haskell implementation of the SECD abstract machine (bsd3, compilers-interpreters, library, program)2016-07-120.1.0.0kseo
secdh80.01SECDH Machine Simulator (bsd3, compilers-interpreters, library, program)2012-03-130.2PeterGavin
secret-santa60.01Secret Santa game assigner using QR-Codes (game, gpl, program)2013-04-110.1.0.0RodrigoSetti
secretspec510.01Haskell SDK for SecretSpec, a declarative secrets manager (apache, configuration, library, program)2026-09-270.21.1domenkozar
secrm70.01Example of writing "secure" file removal in Haskell rather than C. (program, public-domain, security)2010-09-240.0JonSlenk
sectile60.00Composable status line builder (library, program, terminal)2026-09-080.1.0.0gdifolco
secure-memory90.00Securely allocated and deallocated memory. (cryptography, library, memory, mpl, program)2021-11-220.0.0.2kirelagin, serokell
seihou-cli670.00CLI for Seihou project scaffolding (bsd3, development, library, program)2026-11-020.15.0.0shinzui
seihou-okf-extension710.00OKF documentation extension for Seihou registries (bsd3, development, library, program)2026-11-020.15.0.0shinzui
self-extract360.00A Haskell library to make self-extracting executables (bsd3, distribution, library, program)2018-12-290.4.1brandonchinn178
semdoc110.00Evaluate code snippets in Literate Haskell. (agpl, development, library, program)2017-01-040.1.3iphydf
sensei270.01Automatically run Hspec tests on file modifications (development, library, mit, program)2025-04-060.9.0SimonHengel
sensenet40.01Distributed sensor network for the raspberry pi (mit, program, unclassified)2014-09-300.1.0.0rossdylan
sensu-run600.01A tool to send command execution results to Sensu (bsd3, program, system)2020-02-100.7.0.5MitsutoshiAoe
sentry40.01Process monitoring tool written and configured in Haskell (bsd3, library, network, program)2012-04-150.1.0VoMinhThu
seocheck20.00Check for common SEO mistakes on CI (library, mit, program, unclassified)2022-05-090.1.0.0Norfair
seonbi1022.00SmartyPants for Korean language (lgpl, library, program, text)2022-09-170.3.4hongminhee
seqaid270.01Dynamic strictness control, including space leak repair (bsd3, compiler-plugin, library, program)2015-02-040.4.0.0AndrewSeniuk
seqloc-datafiles370.01Read and write BED and GTF format genome annotations (bioinformatics, library, mit, program)2015-03-200.4.2NicholasIngolia
sequenceTools340.00A package with tools for processing DNA sequencing data (bioinformatics, gpl, library, program)2025-01-291.6.0.0stephan_schiffels
sequor780.01A sequence labeler based on Collins's sequence perceptron. (bsd3, library, natural-language-processing, program)2016-07-290.7.5GrzegorzChrupala
serialport582.017Cross platform serial port library. (bsd3, hardware, library, program)2025-09-210.6.0JorisPutcuyps, dopamane
serpentine (deprecated in favor of trasa)60.00Simple project template from stack (bsd3, deprecated, library, program, web)2016-05-170.2andrewthad
servant-JuicyPixels400.01Servant support for JuicyPixels (bsd3, graphics, library, program)2023-10-070.3.1.1TvH
servant-aeson-generics-typescript50.00Generates a TypeScript client for Servant APIs (bsd3, library, program, web)2024-01-030.0.0.2fresheyeball
servant-auth-hmac80.00Authentication via HMAC (bsd3, library, program, web)2016-08-240.1.0.1zohl
servant-cli130.00Command line interface for Servant API clients (bsd3, library, program, web)2024-01-120.1.1.0jle
servant-docs2852.024generate API docs for your servant webservice (bsd3, library, program, servant, web)2024-08-300.13.1AlpMestanogullari, DavidJohnson, GaelDeest, SoenkeHahn, ChristianMarie, phadej, MatthiasFischmann, jkarni, maksbotan, hecate, arianvp, janus
servant-ede220.00Combinators for rendering EDE templates in servant web applications (bsd3, library, program, web)2026-09-021.0.0.0AlpMestanogullari, isovector
servant-examples372.01Example programs for servant (bsd3, program, web)2016-03-170.4.4.7AlpMestanogullari, SoenkeHahn, ChristianMarie, jkarni
servant-github172.00Bindings to GitHub API using servant. (bsd3, library, program, web)2017-11-130.1.0.6finlay
servant-htmx120.00A library for using servant with htmx (bsd3, library, program, web)2022-04-300.1.0.2rashad1030
servant-multipart-client160.07multipart/form-data (e.g file upload) support for servant (bsd3, library, program, servant, web)2026-09-250.13.0AlpMestanogullari, DavidJohnson, GaelDeest, phadej, MatthiasFischmann, maksbotan, hecate, arianvp, fisx, janus
servant-oauth2-examples70.00Example applications using this library in three ways. (library, program, web)2022-07-180.1.0.1NoonSilk
servant-openapi-hs140.02Generate an OpenAPI 3.1 specification for your servant API. (bsd3, library, openapi, program, servant, web)2026-07-225.1.0shinzui
servant-polysemy230.00Utilities for using servant in a polysemy stack (bsd3, library, program, servant, web)2022-11-040.1.4AlexChapman
servant-serf520.00Automatically generate Servant API modules. (library, mit, program, web)2024-01-240.3.1.6fozworth, goolord
servant-serialization100.00 (library, mit, program, serialization, servant)2023-10-300.3plredmond
servant-server3922.75163A family of combinators for defining webservices APIs and serving them (bsd3, library, program, servant, web)2025-06-040.20.3.0AlpMestanogullari, DavidJohnson, GaelDeest, SoenkeHahn, ChristianMarie, phadej, MatthiasFischmann, jkarni, maksbotan, hecate, arianvp, fisx, janus
servant-snap442.00A family of combinators for defining webservices APIs and serving them (bsd3, library, program, web)2020-09-070.9.0imalsogreg
servant-stache30.00Content-Types for rendering Mustache in servant (bsd3, library, program, web)2018-07-280.1.0.0lotz
servant-streamly80.00Servant Stream support for streamly. (bsd3, library, program, servant, streamly, web)2021-08-150.1.0.0gdifolco
servant-subscriber610.01When REST is not enough ... (bsd3, library, program, web)2020-02-290.7.0.0eskimo
servant-typescript180.00TypeScript client generation for Servant (bsd3, library, program, web)2025-06-030.1.0.3thomasjm
servant-util291.251Servant servers utilities. (library, mpl, program, servant, web)2022-10-290.4martoon, serokell
servant-util-beam-pg241.250Implementation of servant-util primitives for beam-postgres. (database, library, mpl, program, servant, web)2022-11-010.4.1martoon, serokell
servant-wasm120.00Servant support for delivering WebAssembly (bsd3, library, program, web)2020-05-170.1.1.0DavidJohnson
servant-websockets222.03Small library providing WebSocket endpoints for servant. (bsd3, library, program, servant, web)2019-10-272.0.0moesenle
servius660.01Warp web server with template rendering (mit, program, web)2018-08-021.2.3.0MichaelSnoyman
sessiontypes100.01Session types library (control, gpl, library, program)2018-01-130.1.2ferdinandvw
setdown280.01Treating files as sets to perform rapid set manipulation. (bsd3, data, library, program)2026-08-220.2.1.0RobertMassaioli
setgame70.00A console interface to the game of Set (bsd3, game, library, program)2015-12-041.1EricMertens
setop50.00Perform set operations on files. (library, mit, program, tools)2017-12-310.1.0.1fmind
settei-preflight40.00Run application configuration checks on proposed deployment inputs (bsd3, configuration, library, program)2026-10-210.3.0.0shinzui
sexp60.01S-Expression parsing/printing made fun and easy (gpl, language, library, parsing, program)2013-02-260.7AlexandruScvortov
sexp-show (deprecated)110.01Produce a s-expression representation of Show values. (bsd3, deprecated, development, program)2012-07-040.1.1.0
sexpr-parser270.01Simple s-expression parser (command-line, library, mit, program)2022-03-110.2.2.0rcook
sfnt2woff42.00A command line tool to convert TrueType/OpenType fonts to WOFF format (bsd3, graphics, library, program)2016-07-080.1.0.0kseo
sgrep40.01Sgrep - grep Fasta files for sequences matching a regular expression (bioinformatics, program)2010-09-130.0KetilMalde
sh2md42.00Record your shell session and print in the markdown format (bsd3, library, program, utilities)2018-11-130.1.0.0kkweon
sha-streams120.01SHA hashes for io-streams. (bsd3, io-streams, library, program, system)2015-10-010.2.1VoMinhThu
shadower120.01An automated way to run doctests in files that are changing (program, public-domain, testing)2014-08-090.1.0.6karun012
shadowsocks170.01A fast SOCKS5 proxy that help you get through firewalls (library, mit, program, web)2018-04-081.20180408rnons
shake8732.563Build system library, like Make, but more accurate dependencies. (bsd3, development, library, program, shake)2026-01-190.19.9NeilMitchell
shake-cabal-build20.01Utility for building Shake build systems using Cabal sandboxes (apache, development, program)2014-10-170.1.0StefanKersten
shake-persist60.00Shake build system on-disk caching (development, gpl, library, program)2016-01-050.1.0.0KAction
shaker220.01simple and interactive command-line build tool (bsd3, development, library, program)2011-06-190.5.1AnthoninBonnefoy
shannon-fano100.01Shannon-fano compression algorithm in Haskell (codec, library, mit, program)2020-06-021.0.0.0bolt12
shapes30.00physics engine and other tools for 2D shapes (bsd3, library, physics, program)2018-05-170.1.0.0ublubu
shapes-demo50.01demos for the 'shapes' package (bsd3, physics, program)2018-05-170.1.0.0ublubu
shapes-math30.01faster vector/matrix math using unboxed numbers and Template Haskell (bsd3, library, math, program)2018-05-170.1.0.0ublubu
she150.02A Haskell preprocessor adding miscellaneous features (language, library, program, public-domain)2011-08-020.6ConorMcBride
shebanger30.00Transform a shell script into a series of scripts with only shebang lines (bsd3, library, productivity, program)2024-11-161.0.0.0cdepillabout
shelduck80.00Test webhooks locally (apache, library, program, web)2015-11-140.2.0.0boblong
shell-pipe (deprecated in favor of process)100.01Pipe streams through external shell commands (deprecated, library, program, system)2007-09-250.1HenningThielemann
shellify370.00A tool for generating shell.nix files (apache, library, packaging, program)2025-08-020.14.0.2danielrolls
shellout30.00A threaded manager for Haskell that can run and stream external process output/err/exits (bsd3, library, program, system)2018-02-050.1.0.0loganmac
shelltestrunner510.01Easy, repeatable testing of CLI programs/commands (gpl, program, testing)2025-11-181.11AndreasAbel, SimonMichael
shentong72.01A Haskell implementation of the Shen programming language (bsd3, language, program)2017-04-270.3.2mjt128
shh760.01Simple shell scripting from Haskell (bsd3, library, program, system)2023-12-190.7.3.0lukec
shibuya-metrics710.00Metrics web server for Shibuya queue processing framework (concurrency, library, mit, program)2026-10-270.12.0.0shinzui
shift310.01A tool to quickly switch between directories (mit, program, tools)2020-07-190.2.1.3vmchale
shikumi-okf240.00Generate OKF documentation bundles from shikumi programs (EP-31) (ai, bsd3, library, program)2026-11-030.2.2.0shinzui
shikumi-trace520.03Hierarchical tracing, observability, and deterministic replay for shikumi (EP-7) (ai, bsd3, library, program)2026-11-030.3.2.0shinzui
shimmer130.01The Reflective Lambda Machine (compilers-interpreters, library, mit, program)2019-02-060.1.3.4BenLippmeier
shomei-migrations80.00Schema migrations for Shōmei (pg-migrate component, embedded SQL) (database, library, mit, program, security)2026-11-060.2.0.1shinzui
shomei-servant70.00Servant API, handlers, and auth combinators for Shōmei (library, mit, program, security, web)2026-11-060.3.0.0shinzui
shomei-server40.00Standalone Shōmei authentication service (library, mit, program, security, web)2026-11-060.3.0.0shinzui
showdown220.01A simple gtk based Russian Roulette game. (bsd3, game, program)2009-06-280.5.3AnthonyGrimes
shower150.02Clean up the formatting of 'show' output (bsd3, development, library, program)2026-04-190.2.0.5Artyom, int_index
shplit140.01A Haskell pattern splitter with emacs attachments (language, program, public-domain)2012-02-010.3ConorMcBride
shuffle190.02Shuffle tool for UHC (bsd3, development, library, program)2018-01-070.1.4.0AtzeDijkstra, JeroenBransen
sibe230.00Machine Learning algorithms (data-science, gpl, library, machine-learning, program, web)2017-05-250.2.0.5mdibaiee
sifflet310.01Simple, visual, functional language for learning about recursion. (bsd3, language, library, program, visual-programming)2016-05-182.3.0GregoryWeber
sigma-ij130.00Thom polynomials of second order Thom-Boardman singularities (bsd3, library, math, program)2016-10-220.2.0.2BalazsKomuves
signable-haskell-protoc90.00Deterministic serialisation and signatures with proto-lens support (bsd3, cryptography, data, program)2020-09-240.2coingaming
signal192.02Multiplatform signal support for Haskell (library, mit, program, system)2017-08-090.1.0.4danilo2, PiotrMlodawski, iamrecursion
signal-messaging-dbus70.00Bindings for signal-cli's DBus interface (library, program, web)2023-05-041.0.1.0llenck
significant-figures170.00Calculate expressions involving significant figures. (chemistry, gpl, library, math, program)2022-10-130.2.0.0mizlan
signify-hs120.00A Haskell clone of OpenBSD signify. (bsd3, cryptography, library, program)2024-12-280.1.0.3MarcelFourne
simfin30.00A library to fetch and parse financial data from the SimFin(+) API. (finance, library, mit, program, web)2022-05-211.0.0414owen
simgi100.01stochastic simulation engine (program, scientific-simulation)2010-02-100.3MarkusDittrich
simple710.05A minimalist web framework for the WAI server interface (lgpl, library, program, web)2023-04-292.0.0AmitLevy
simple-eval120.01Evaluate a Text to an Integer: "1 + 1" -> 2 (gpl, language, library, program)2014-10-240.1.0.1m
simple-genetic-algorithm240.01Simple parallel genetic algorithm implementation (ai, bsd3, library, program)2014-05-040.2.0.0eax
simple-genetic-algorithm-mr60.01Simple parallel genetic algorithm implementation (ai, bsd3, library, program)2015-08-020.4.0.0JeanPhilippeMoresmau
simple-neural-networks70.01Simple parallel neural networks implementation (ai, bsd3, library, program)2014-05-100.2.0.1eax
simple-pascal80.01Simplified Pascal language to SSVM compiler (bsd3, compilers-interpreters, languages, library, program)2011-07-040.1IlyaPortnov
simple-smt1160.04A simple way to interact with an SMT solver process. (bsd3, library, math, program)2026-08-311.0.1IavorDiatchki
simple-src-utils50.01source code editing utilities (bsd3, development, haskell, program)2018-04-070.1EvanLaforge
simple-stacked-vm70.02Simple stacked virtual machine: assembler, disassembler, bytecode interpreter (bsd3, compilers-interpreters, languages, library, program)2018-07-300.1.2IlyaPortnov
simplelru110.00 (bsd3, library, program, unclassified)2020-01-090.1.0.3Murakami
simpleprelude160.01A simplified Haskell prelude for teaching (bsd3, library, program, teaching)2011-11-041.0.1.3JeanMarieGaillourdet
simplex390.01A simple markup language that translates to LaTeX (gpl, latex, program)2013-06-160.3.8JulianFleischer
simplexmq202.00SimpleXMQ message broker (agpl, chat, cryptography, library, network, program, system, web)2022-04-211.1.0epoberezkin, EfimPoberezkin
simseq40.01Simulate sequencing with different models for priming and errors (bioinformatics, program)2008-03-080.0GwernBranwen
sindre220.01A programming language for simple GUIs (bsd3, gui, library, program)2022-05-240.6TroelsHenriksen
singletons-base-code-generator40.00Code generator for the singletons-base test suite (bsd3, dependent-types, program)2024-12-300.1ryanglscott
sixel180.02Sixel library to show images in a terminal emulator (bsd3, graphics, library, program)2020-05-240.1.2.3junjihashimoto
sizes820.01Recursively show space (size and i-nodes) used in subdirectories (bsd3, development, library, program)2026-08-132.4.4JohnWiegley
sjsp30.01Simple JavaScript Profiler (compiler, mit, program)2015-07-050.1.0itchyny
skeletest390.00Batteries-included, opinionated test framework (bsd3, library, program, testing)2026-11-070.4.3brandonchinn178
skeleton50.01a tool to access the OSX keychain (mit, program, utility)2015-07-070.1.0.0rnhmjoj
skeletons80.01Manage project skeletons (development, mit, program)2015-09-080.4.0WilliamCasarin
skemmtun60.01A MyAnimeList.net client. (mit, program, web)2015-12-050.1.0.0nyorem
skopedate20.00Check dates of container images (mit, program, utility)2023-08-110.1JensPetersen
skylark-client (deprecated)150.00Skylark client. (bsd3, deprecated, library, network, program)2017-04-060.1.7markfine
skypelogexport100.01Export Skype chat logs to text files (bsd3, program, text)2011-04-100.2EugenyDzhurinsky
slab70.00A programmable markup language to generate HTML (bsd2, library, program, text)2024-07-230.0.3.0VoMinhThu
slack-api512.51Bindings to the Slack RTM API. (library, mit, program, web)2017-03-020.12mpickering, asayers, rickeyski
slack-notify-haskell290.01Slack notifier for Haskell project. (library, mit, program, web)2015-02-260.2.3tattsun
slack-progressbar80.00 (library, mit, program, unclassified)2020-07-170.1.0.1thomasjm
slate440.00A note taking CLI tool. (library, mit, program, unclassified)2019-05-100.13.1.0evuez
sleep80.01zZzzZz (gpl, library, program, system)2017-01-150.1.0.1AlanHawkins
slice-cpp-gen190.01Generate C++ skeletons from slice files (bsd3, development, program)2013-06-140.3.0.0PaulKoerbitz
sliceofpy62.00Python-ish slicing traversals for Haskell. (bsd3, data, lenses, library, program)2019-08-231.0.0lgastako
slidemews60.01ws convert markdown to reveal-js (program, web)2014-01-290.3j4pe
sloane720.01A command line interface to Sloane's OEIS. (bsd3, math, program)2017-07-035.0.1AndersClaesson
slope-field30.00Visualize mathematical function's slope fields (gpl, library, program, web)2016-11-250.1.0.1mdibaiee
slugger102.01Clean URI slugs for Haskell (bsd3, data, library, program, text, web)2023-01-310.1.0.2robertwpearce
slynx700.00Handle molecular sequences (bioinformatics, gpl, library, program)2025-08-110.9.0.0dschrempf
smallcaps450.01Flatten camel case text in LaTeX files (bsd3, latex, library, program, text)2019-05-280.6.0.6StefanBerthold
smallpt-hs50.01A Haskell port of the smallpt path tracer. (bsd3, graphics, program)2010-09-080.1VoMinhThu
smap180.00A command line tool for working with sets and maps (bsd3, library, program, text)2019-07-050.3.3wyager
smartcheck182.01A smarter QuickCheck. (bsd3, library, program, testing)2017-08-110.2.4LeePike
smarties80.00Haskell Behavior Tree Library (ai, bsd3, games, library, program)2020-03-271.2.1pdlla
smartword90.01Web based flash card for Word Smart I and II vocabularies (bsd3, education, program, web)2009-03-280.0.0.5KiYungAhn
smh140.00String manipulation tool written in haskell (cli-tool, library, mit, program)2024-03-150.2.1danirybe
smith-cli20.00Command line tool for <https://smith.st/ Smith>. (bsd3, program, security)2019-02-080.0.1MarkHibberd
smtp2mta60.01Listen for SMTP traffic and send it to an MTA script (network, program)2012-04-020.2StephenWeber
smuggler102.00GHC Source Plugin that helps to manage imports (development, library, mpl, program, refactoring)2018-09-240.1.0vrom911
snail100.00A programming language with no semantics (library, mit, parsing, program)2026-11-110.1.2.2chiroptical
snake40.01A basic console snake game. (game, mit, program)2016-05-300.1.0.0alaminium
snap-auth-cli80.01Command-line tool to manage Snap AuthManager database (bsd3, program, snap, web)2018-03-300.2DmitryDzhus
snap-templates50.01Scaffolding CLI for the Snap Framework (bsd3, program, snap, web)2018-07-291.0.0.2DougBeardsley
snaplet-i18n390.01snaplet-i18n (bsd3, library, program, web)2017-02-020.2.0HaishengWu
snappy-c182.01Bindings to Google's Snappy: A fast compression library (bsd3, codec, library, program)2026-03-050.1.3EdskoDeVries, FinleyMcIlwaine
snappy-hs280.02Snappy compression library. (codec, library, mit, program)2026-06-200.1.2.0mchav
snelstart-import90.00Import to snelstart. (finance-, library, mit, program)2025-03-181.1.0Jappie
snippet-extractor100.01Extracts labeled snippets of code to files. (bsd3, program, text)2010-12-290.2.0JasonDagit
snm90.01The Simple Nice-Looking Manual Generator. (documentation, gpl, library, program)2010-07-270.0.4JohnnyMorrice
snorkels50.01Strategic board game of medium complexity (game, gpl, library, program)2016-09-130.2.0.0unaizalakain
snowflake-server40.01snowflake http server (bsd3, commercial, program)2016-09-100.1.0.0KaiJia
snowglobe180.01randomized fractal snowflakes demo (demo, gpl, program)2016-06-183.0.0.3ClaudeHeilandAllen
snowtify180.01snowtify send your result of `stack build` (`stack test`) to notify-daemon :dog2: (mit, program, simple)2017-07-280.1.0.3aiya000
soccer-table80.00Create League Tables from Soccer Game Results (library, mit, program, utilities)2026-05-200.1.0.2patrickbucher
sock2stream150.01Tunnel a socket over a single datastream (stdin/stdout) (network, program)2012-02-160.3StephenWeber
socketed30.00simpe tool to serve piped data over http and websocket (library, mit, program, web)2017-04-130.1.0.0sencenan
socketson60.00A small websocket backend provider. (library, mit, network, program)2016-02-220.1.0.0apho
socks5160.00A SOCKS5 (RFC 1928) implementation (bsd3, library, network, program)2025-07-090.8.0.0homovetus
solana-haskell-sdk210.00Solana SDK: transaction building, signing, program clients, and JSON-RPC. (apache, blockchain, library, program, solana, web3)2026-10-191.4.0.0mariusgeorgescu
solana-staking-csvs162.00Generate CSV Exports of your Solana Staking Rewards. (bsd3, console, finance, library, program, web)2025-11-110.2.0.0lysergia
solve120.01Solving simple games (game, library, mit, program)2018-12-031.3JoeHurd
sonic-visualiser60.01Sonic Visualiser (library, program, sound)2008-06-040.1.1StefanKersten
sorty40.01Sort lines per file size (bsd3, program, utils)2009-12-020.1.1KrzysztofSkrzetnicki
sound-collage290.01Approximate a song from other pieces of sound (bsd3, program, sound)2026-07-110.2.1.1HenningThielemann
sounddelay50.01Audio delay line (bsd3, program, sound)2014-09-210.1.0.2BartonMassey
soundgen140.01sound generator (bsd3, program, sound)2018-06-160.1.1.0CIX_68
source-code-server (deprecated)70.01The server backend for the source code iPhone app (bsd3, deprecated, program, web)2010-08-312010.9.1JinjingWang
soyuz50.01DCPU-16 architecture utilities for Notch's 0x10c game. (compilers-interpreters, library, mit, program)2012-04-100.0.0AlexKropivny
spade290.00A simple programming and debugging environment. (gpl, ide, interpreter, language, library, program)2026-07-280.2.0.0sras
spake2130.02Implementation of the SPAKE2 Password-Authenticated Key Exchange algorithm (crypto, library, program)2020-11-180.4.3ShaeErisson, jml, rkrishnan
spanout80.01A breakout clone written in netwire and gloss (bsd3, game, program)2015-07-180.1vtan
sparkle (deprecated)410.00Distributed Apache Spark applications in Haskell (bsd3, deprecated, distributed-computing, ffi, java, jvm, library, program)2018-02-280.7.4AlpMestanogullari, FacundoDominguez, MathieuBoespflug
sparse-set110.01Sparse set data structure (bsd3, library, program, unclassified)2026-01-140.4.0matthunz
sparse-vector100.01Sparse vector data structures (bsd3, library, program, unclassified)2026-01-140.4.0matthunz
spartacon70.00A unix-style (read from stdin, write to stdout) global hotkey daemon (bsd3, control, program)2021-04-120.1.0.0DanielWagner
specup200.00Manage the application of templates to custom yaml (documentation, gpl, library, program)2026-11-070.2.0.7danielrolls
speechmatics (deprecated)210.00Speechmatics api client (api, bsd3, deprecated, library, program)2018-07-110.7.2.0
spelling-suggest180.01Spelling suggestion tool with library and command-line interfaces. (bsd3, console, library, program, text)2012-08-270.5.2.1BartonMassey, GregWeber
sphinx-cli70.01Sphinx CLI and demo of Haskell Sphinx library (bsd3, database, program, search, text)2008-07-140.1EelcoLempsink
sphinxesc90.00Transform queries for sphinx input (library, mit, program, text)2017-03-230.1.0.1mackeyrms
spike160.01Experimental web browser (bsd3, program, web)2012-03-060.3KrzysztofSkrzetnicki
spline3260.01Parallel implementation of the Sorokina/Zeilfelder spline scheme (agpl, math, program)2024-05-151.8.7MichaelOrlitzky
split-record200.01Split a big audio file into pieces at positions of silence (bsd3, program, sound)2026-07-110.1.1.5HenningThielemann
splitter20.01Use numerical ranges to split out certain lines from a file. (mit, program, text)2013-07-010.1.0.0RobertMassaioli
splot1370.01A tool for visualizing the lifecycle of many concurrent multi-staged processes. (bsd3, graphics, program)2015-12-260.3.14EugeneKirpichov
spoonutil70.02Spoon's utilities. Simple testing and nice looking error reporting. (gpl, library, program, testing)2010-07-270.0.1JohnnyMorrice
sport260.00UNIX serial port (concurrency, hardware, library, mit, program, stm, system)2026-07-153.1.0.0dopamane
spotify80.00Spotify Web API (bsd3, library, music, program, web)2023-06-290.1.0.1GeorgeThomas
sprinkles80.00JSON API to HTML website wrapper (bsd3, library, program, web)2018-10-170.6.0.0TobiasDammers
sproxy (deprecated in favor of sproxy2)180.01HTTP proxy for authenticating users via OAuth2 (deprecated, mit, program, web)2016-11-200.9.9ip1981
sproxy-web120.01Web interface to sproxy database (mit, program, web)2016-06-180.4.1ip1981
sproxy2400.01Secure HTTP proxy for authenticating users via OAuth2 (databases, mit, program, web)2019-09-061.97.1ip1981
spy (deprecated)260.01A compact file system watcher for Mac OS X, Linux and Windows (bsd3, deprecated, development, program)2016-09-170.14
sqlc-hs140.00Generate type-safe Haskell code from SQL via https://github.com/sqlc-dev/sqlc. (apache, development, library, program)2026-09-250.4.0.0alexbiehl
sqsd-local150.01Initial project template from stack (mpl, program, web)2017-01-160.2.0owickstrom
squeal-postgresql1502.255Squeal PostgreSQL Library (bsd3, database, library, program)2024-12-260.9.2.0echatav
squealgen60.00generate squeal types from an existing database (bsd3, database, program)2026-02-160.2.0.0MarkWotton
squeeze370.01A file-packing application. (application, library, program, utils)2020-08-101.0.4.19AlistairWard
srcinst140.01Build and install Debian packages completely from source (program, system)2008-01-160.8.10JohnGoerzen
srtree1310.03A general library to work with Symbolic Regression expression trees. (bsd3, data, data-structures, library, math, program)2026-11-023.0.0.7olivetti
srtree-db400.00SQL persistence and querying for srtree e-graphs (bsd3, data, library, math, program)2026-11-040.1.4.0olivetti
srv40.00A simple web server for local usage. (apache, program, web)2022-12-180.1.0.0thma
sscan100.01text UI for scanning with SANE (gpl, graphics, program)2020-01-280.2spwhitton
sshd-lint60.01Check sshd configuration for adherence to best practices (mit, program, system)2015-02-030.1.0.1jsl, stackbuilders
sshtun20.01Wrapper daemon to manage an ssh tunnel (application, bsd3, network, program)2012-04-261.0.0DinoMorelli
sstable50.01SSTables in Haskell (bsd3, data, library, program)2010-07-311.0MariusEriksen
ssv160.01Comma-separated-value (CSV) read, show and write routines (library, mit, program, text)2014-09-150.3BartonMassey
stable-tree330.01Trees whose branches are resistant to change (bsd3, data, library, program)2015-03-140.7.0tsuraan
stache1012.08Mustache templates for Haskell (bsd3, library, program, text)2026-06-172.4.0mrkkrp
stack2342.253The Haskell Tool Stack (bsd3, development, library, program)2015-06-26ChrisDone, DanBurton, KirillZaborsky, MichaelSloan, MichaelSnoyman, borsboom, fpcomplete, mpilgrem
stack-all790.00CLI tool for building over Stackage major versions (bsd3, distribution, program)2025-08-050.7.1JensPetersen
stack-bump60.01Dead simple version bumping for hpack packages (development, mit, program)2017-07-130.7.1.0yamadapc
stack-clean-old690.00Clean away old stack build artifacts (bsd3, distribution, program)2025-12-290.5.2JensPetersen
stack-fix40.00Console program used to fix Stack build errors automatically (agpl, development, program)2019-08-270.1.0.0freeman42x
stack-hpc-coveralls220.00Initial project template from stack (control, library, program)2023-02-050.0.7.0lehins, rubik
stack-network62.01A program for extending Stack to add distributed capabilities (bsd3, library, program, web)2018-05-010.1.0.1mcgroas
stack-run551.751An equivalent to cabal run for stack. (development, mit, program)2017-05-120.1.1.4yamadapc
stack-run-auto280.00Initial project template from stack (development, library, mit, program)2016-06-070.1.1.4yamadapc
stack-tag60.00Create etags for Haskell projects based on Stack snapshots (library, mit, program, unclassified)2018-09-150.2.0ChristopherReichert
stack-templatizer192.00Generate a stack template from a folder. (bsd3, development, program)2026-08-160.1.2.0lysergia
stack-wrapper40.00Call ghc within stack by calling ghc (bsd3, development, library, program)2019-12-020.1.0kakkun61
stack2cabal351.750Convert stack projects to cabal.project + cabal.project.freeze (building, gpl, library, program)2022-09-131.0.14maerwald, tseenshe
stack2nix240.00Convert stack.yaml files into Nix build instructions. (distribution, library, mit, nix, program)2019-04-290.2.3domenkozar, iohk_devops
stackage-build-plan (deprecated in favor of stackage-curator)70.01Calculate and print (in different formats) Stackage build plans (deprecated, distribution, library, mit, program)2015-05-100.1.1.0MichaelSnoyman
stackage-cabal (deprecated in favor of stack)120.01A CLI executable for cabal-based stackage commands (deprecated, development, library, mit, program)2015-05-060.1.1DanBurton
stackage-cli (deprecated in favor of stack)280.01A CLI library for stackage commands (deprecated, development, library, mit, program)2015-05-060.1.0.2ChrisDone, DanBurton, MichaelSnoyman
stackage-curator1000.02Tools for curating Stackage bundles (distribution, library, mit, program)2018-03-110.16.0.0MichaelSnoyman
stackage-install400.02Secure download of packages for cabal-install (distribution, library, mit, program)2016-07-180.1.2MichaelSnoyman
stackage-metadata (deprecated)90.01DEPRECATED Grab current metadata for all packages (deprecated, distribution, library, mit, program)2015-05-140.3.0.0MichaelSnoyman
stackage-query141.751Tool for querying Stackage (distribution, mit, program)2019-05-070.2.0JensPetersen
stackage-sandbox (deprecated in favor of stack)280.01Work with shared stackage sandboxes (deprecated, development, library, mit, program)2015-09-010.1.6ChrisDone, DanBurton, MichaelSnoyman, borsboom
stackage-setup (deprecated in favor of stack)160.01An executable for downloading a Haskell setup (deprecated, development, library, mit, program)2015-05-140.0.2DanBurton
stackage-to-hackage322.00Convert stack.yaml to cabal.project + cabal.project.freeze (building, gpl, library, program)2019-07-301.1.1tseenshe
stackage-update360.02Update your package index incrementally (requires git) (distribution, library, mit, program)2015-05-120.1.2ChrisDone, MichaelSnoyman
stackage-upload (deprecated in favor of stack)290.01A more secure version of cabal upload which uses HTTPS (deprecated, distribution, library, mit, program)2016-09-060.1.0.6MichaelSnoyman, lehins
stackage2nix220.00Convert Stack files into Nix build instructions. (bsd3, distribution, library, nix, program)2018-07-260.7.2mniip, typeable, dbushev
stackcollapse-ghc192.00Program to fold GHC prof files into flamegraph input (gpl, profiling, program)2021-05-100.0.1.4rzeznik
stackctl860.00 (library, mit, program, unclassified)2025-10-171.7.3.7PatrickBrisbin, dukerutledge, mjgpy3, chris_martin, FreckleEngineering, OlaoluwaM
stacked-dag270.00Ascii DAG(Directed acyclic graph) for visualization of dataflow (bsd3, graphics, graphs, library, program)2018-10-050.1.1.0junjihashimoto
stacker120.00Bump snapshots in stack.yaml files (bsd3, development, library, program)2026-10-150.0.1.0AndreasAbel
stagen102.00Static site generator (bsd3, library, program, web)2018-03-050.2.1jxv
stamina150.00Retries for humans (apache, control, library, program)2024-01-260.1.0.3domenkozar
stan282.01Haskell STatic ANalyser (library, mpl, program, static-analysis)2025-05-240.2.1.0tomjaguarpaw, vrom911
standalone-haddock360.01Generate standalone haddock documentation for a set of packages (distribution, mit, program)2019-11-091.4.0.0KarlVoelker, RomanCheplyaka
starrover260.01Space simulation game (game, program)2010-09-290.1.1AnttiSalonen
starter-snake-haskell70.00A Haskell Battlesnake starter (bsd3, game, library, program, web)2023-08-261.1.0ccntrq
statechart120.01Compiles Rhapsody statecharts to C. (bsd3, compiler, program)2010-07-150.1.0TomHawkins
static-ls70.00See README on Github for more information (development, library, mit, program)2024-02-040.1.2suzzr0
stats50.01command line statistics (gpl, math, program)2013-12-050.1.1cheecheeo
status-notifier-item710.04A wrapper over the StatusNotifierItem/libappindicator dbus specification (bsd3, desktop, library, program)2026-07-150.3.2.16rvl, eyevanmalicesun
staversion560.00What version is the package X in stackage lts-Y.ZZ? (bsd3, development, library, program)2024-03-110.2.4.3debugito
stc-lang50.00A library for implicit, monadic dataflow parallelism (bsd3, concurrency, development, library, program)2019-08-011.0.0justus
stdf90.01Parse Structured Test Data Format (STDF) (data, gpl, library, program)2014-10-130.2.0.0m
steambrowser70.01List and launch steam games from the cli (game, mit, program)2014-12-180.1.0.0hunteriam
steeloverseer692.251A file watcher and development tool. (bsd3, development, library, program)2026-07-262.1.1.0SchellScivally, peterbecich
stgi140.00Educational implementation of the STG (Spineless Tagless G-machine) (bsd3, development, library, program)2017-11-101.1quchen
stim-parser250.00A parser combinator library for STIM quantum circuit files (library, mit, parsing, physics, program)2026-07-210.4.1.0overshiki
stp90.00Simple Theorem Prover (bsd3, library, math, program)2018-11-210.1.0.1bor0
stratum-tool40.01Client for Stratum protocol (agpl, program, utils)2015-01-270.0.4JoelLehtonen
stratux-demo40.00A demonstration of the stratux library. (adsb, aviation, bsd3, library, program, stratux)2019-07-140.0.12TonyMorris
streamgraph70.00generate a streamgraph from haskell on the command line (library, program, visualisation)2026-07-020.5.1.0liberalogica
streamly-examples202.00Examples for Streamly (apache, concurrency, filesystem, network, program, reactivity, streaming, streamly, text)2026-04-160.3.1harendra, adithyaov, ranjeetra
strictify30.01Find a local optimum of strictness annotations. (bsd3, program, unclassified)2008-02-040.1SterlingClover
string-random452.02A library for generating random string from a regular experession (bsd3, library, program, text)2025-04-140.1.4.5hiratara
strio70.00Initial project template from stack (bsd3, library, program, web)2015-08-130.0.0.0yulii
strongswan-sql160.00Interface library for strongSwan SQL backend (bsd3, console, library, network-apis, program, sql)2019-08-121.3.0.1erick
struct-inspector60.00Inspect the padding and size of C data declarations and their fields (bsd3, program, tooling)2022-09-091.1.0414owen
structured-cli900.01Application library for building interactive console CLIs (bsd3, console, library, program)2020-12-172.7.0.1erick
structured-haskell-mode781.251Structured editing Emacs mode for Haskell (bsd3, development, program)2017-01-191.1.0ChrisDone, IvanMiljenovic
stunts100.01A revival of the classic game Stunts (LambdaCube tech demo) (bsd3, graphics, program)2011-07-020.1.2CsabaHruska
stutter110.00(Stutter Text|String)-Utterer (library, mit, program, tools)2018-10-140.1.0.2nmattia
stylish-cabal300.00Format Cabal files (bsd3, language, library, program)2019-02-090.5.0.0JudeTaylor
stylish-haskell1932.254Haskell code prettifier (bsd3, language, library, program)2025-04-180.15.1.0JasperVanDerJeugt
styx210.01A generator of nix files (development, program)2017-10-021.3.1JeanPhilippeBernardy
subleq-toolchain80.01Toolchain of subleq computer. (gpl, language, library, program)2015-12-240.1.8.5na4zagin3
submark250.00Extract a part from CommonMark/Markdown docs (gpl, library, program, text)2026-05-170.4.0hongminhee
subsample50.00Subsample data. (bioinformatics, gpl, library, program)2018-05-160.1.0.0GregorySchwartz
substrate-synapse50.00Algebraic CLI for Plexus - coalgebraic schema navigation (library, mit, program, unclassified)2025-12-290.1.0.0hypermemetic
subtitles40.01Modify SRT subtitle files. (bsd3, program, utils)2009-05-100.0.1SebastiaanVisser
succinct20.00Memory efficient JSON parser (bsd3, data, library, program)2025-03-080.0.0.1haskellworks
suckless-conf210.00S-expression configuration language and the bf6 script runtime (library, program, text)2026-06-090.1.2.12NCrashed
suffix-array80.00Simple and moderately efficient suffix array implementation (bsd3, data-structures, library, program)2017-01-110.3.0.0kadoban
suffixarray110.01n log n implementation of suffix array. (data, gpl, library, program)2012-06-170.0.3.1DanielDeKok, VictorDenisov
sugarhaskell110.01Library-based syntactic extensibility for Haskell (code-generation, language, program, source-tools)2012-10-050.1SebastianErdweg
sum-pyramid50.00Create Sum Pyramid (Additionstreppe) exercises (bsd3, math, program)2025-05-190.0.1HenningThielemann
summoner942.51Tool for scaffolding fully configured batteries-included production-level Haskell projects. (cli, cli-tool, development, library, mpl, program)2026-01-162.2.0.0vrom911
summoner-tui152.00Tool for scaffolding fully configured batteries-included production-level Haskell projects using TUI. (development, library, mpl, program, tui, tui-tool)2026-01-162.2.0.0vrom911
sunroof-examples120.01Tests for Sunroof (bsd3, compiler, embedded, javascript, language, program, web)2014-06-270.2.2JanBracker
super-user-spark322.00Configure your dotfile deployment with a DSL. (library, mit, program, system)2020-01-260.4.0.4Norfair
supercollider-midi300.01Demonstrate how to control SuperCollider via ALSA-MIDI (program, sound)2012-04-100.2.1HenningThielemann
supero40.01A Supercompiler (bsd3, compiler, program)2010-06-133.0NeilMitchell
sv2v270.00SystemVerilog to Verilog conversion (bsd3, development, embedded, hardware, language, program)2025-06-230.0.13.1zachjs
svg-icons1420.00Svg Icons and more (bsd3, graphics, library, program, web)2024-08-223.10RamiroPastor
svg2q90.01Code generation tool for Quartz code from a SVG. (bsd3, parsing, program)2011-02-280.3.2JanGreve
svgone130.00Optimise SVGs (bsd3, graphics, library, program, svg)2024-10-250.2.0.2GeorgeThomas
svgsym120.00A tool to prune unused symbols from icon SVG files. (gpl, program, utility)2024-02-190.1.2.0RobertHelgesson
svgutils30.01Helper functions for dealing with SVG files (bsd3, graphics, library, program)2010-08-110.1NeilBrown
swagger-test200.00Testing of Swagger APIs (bsd3, library, program, testing)2017-09-130.2.7rodrigosetti
swarm182.2502D resource gathering game with programmable robots (bsd3, game, library, program)2025-06-070.7.0.0BrentYorgey, xsebek
swearjure30.01Clojure without alphanumerics. (language, lgpl, program)2015-04-011.0.0hyPiRion
swish1680.01A semantic web toolkit. (lgpl, library, program, semantic-web)2026-01-080.10.11.0DouglasBurke, VasiliGalchin
swiss-army-knife280.00A collection of small tools to make life a bit easier for the command-line. (library, mit, program, system)2026-11-091.2.0.0ElToro
sws402.01A simple web server for serving directories. (bsd3, program, web)2021-04-190.5.0.1DerekElkins
sydtest-discover160.00Automatic test suite discovery for sydtest (library, program, testing)2023-10-040.0.0.4Norfair
sydtest-mutation-driver290.01Out-of-process mutation testing driver for sydtest. (library, program, testing)2026-10-250.4.3.0Norfair
syfco50.01Synthesis Format Conversion Tool / Library (library, mit, program, syntcomp)2017-07-031.1.0.0kleinreact
sylvia100.01Lambda calculus visualization (game, program)2012-10-220.2.2ChrisWong
symantic-http-demo50.00Demo for symantic-http and its companion libraries (gpl, library, program, protocol)2019-03-250.0.0.0julm
symengine-hs60.00SymEngine symbolic mathematics engine for Haskell (ffi, library, math, mit, program, symbolic-computation)2016-03-050.1.1.0bollu
symon52.01Minimal implementation(s) of the classic electronic memory game. (development, gpl, program)2016-08-310.1SimonMichael
symplectic-chp60.00CHP Clifford simulator using symplectic geometry (library, math, mit, physics, program, quantum-computing)2026-07-200.2.0.0overshiki
synapse-cc180.00Unified compiler toolchain for Plexus backends (development, library, mit, program)2026-11-040.4.0hypermemetic
sync-mht500.01Fast incremental file transfer using Merkle-Hash-Trees (library, mit, program, utility)2016-07-160.3.8.5emink
synt60.01Similar code analysis. (language, library, program)2014-11-230.1.2brentlintner
syntax-example140.01Example application using syntax, a library for abstract syntax descriptions. (data, mit, program)2014-12-121.0.0.0pawel834
syntax-example-json60.01Example JSON parser/pretty-printer. (data, mit, program)2014-12-121.0.0.0pawel834
system-lifted20.02Lifted versions of System functions. (bsd3, library, program, system)2014-05-300.2.0.1jcristovao
system-test80.00Runs system tests of applications. (library, mit, program, testing)2016-05-220.1.2ExcaliburZero
systemd-ntfy30.00Send notifications for systemd units to ntfy.sh (gpl, program, system)2023-08-240.1.0mpardalos
systemstats40.01An application that regularly logs system stats for later analysis (bsd3, program, web)2016-07-040.1.0.0savannidgerinel
systranything480.00Let you put anything in the system tray (desktop, library, mit, program)2026-06-030.1.5.0jecaro
table40.01Simple tool to generate tables from DSV input (mit, program, text)2015-01-020.1.0.0DanielChoi
table-layout902.04Format tabular data as grid or table. (bsd3, library, program, text)2026-11-071.0.0.3muesli4
tableaux140.01An interactive theorem prover based on semantic tableaux (bsd3, program, theorem-provers)2023-07-210.3PedroVasconcelos
tablize30.01Pretty-printing of CSV files (program, text)2017-01-271.0.0lovasko
tabloid210.01View the output of shell commands in a table (bsd3, program, system)2009-05-010.47SvenHeyll
tabs60.01Indents source files (bsd3, library, program, unclassified)2018-02-220.1.0.0ThomasEding
taffybar2272.01A desktop bar similar to xmobar, but with more GUI (bsd3, library, program, system)2026-10-207.4.4TristanRavitch, rvl, eyevanmalicesun
taggy220.04Efficient and simple HTML/XML parsing library (bsd3, library, program, text, web)2017-12-210.2.1AlpMestanogullari, vi
tagsoup-ht (deprecated in favor of tagchup)70.02alternative parser for the tagsoup package (deprecated, library, program, xml)2009-03-040.3HenningThielemann
tagstew40.00Black magic tagsoup (bsd3, library, program, text)2020-09-200FumiakiKinoshita
tahoe-chk120.03The Tahoe-LAFS' Content-Hash-Key (CHK) cryptographic protocol. (bsd3, cryptography, library, parsers, program, security)2023-10-020.2.0.0ShaeErisson, jcalderone
tahoe-great-black-swamp50.01An implementation of the "Great Black Swamp" LAFS protocol. (bsd3, cryptography, distributed-computing, filesystem, library, network, network-apis, program, security, service, storage, web)2023-11-060.4.0.1ShaeErisson, jcalderone
tahoe-ssk40.02An implementation of the Tahoe-LAFS SSK cryptographic protocols (bsd3, cryptography, library, parsers, program, security)2023-10-100.3.0.0ShaeErisson, jcalderone
tail50.00Haskell API for tail -f streaming (library, mit, program, system)2026-01-010.2.0.0sridca
tailwind80.01Tailwind wrapped in Haskell (library, mit, program, web)2022-04-030.3.0.0sridca
taiwan-id290.00Library and CLI for working with ID numbers issued in Taiwan. (bsd3, identification, library, program)2026-10-020.1.1.4JonathanKnowles
tak-ai60.01AI(s) for playing Tak on playtak.com (bsd2, game, program)2016-06-080.1.0.1HenryBucklow
takedouble80.00duplicate file finder (bsd3, library, program, utilities)2022-06-260.0.2.0ShaeErisson
talash240.00Line oriented fast enough text search (gpl, library, program, search, tui)2022-09-250.3.0rahguzar
tamarin-prover (deprecated)430.01The Tamarin prover for security protocol analysis. (deprecated, program, theorem-provers)2015-09-070.8.6.3BenediktSchmidt, SimonMeier
tangle80.00Heterogenous memoisation monad (bsd3, data-structures, library, monad, program)2021-11-080.1FumiakiKinoshita
tap50.00radiotap (data, library, mit, program)2026-11-020.2.0.0dopamane
target100.01Generate test-suites from refinement types. (library, mit, program, testing)2015-09-010.2.0.1EricSeidel
tart142.00Terminal Art (bsd3, graphics, library, program)2025-03-280.4JonathanDaugherty
task30.01A command line tool for keeping track of tasks you worked on (bsd3, network, program)2012-03-220.0.1SeanSeefried
task-distribution70.00Distributed processing of changing tasks (bsd3, distributed-computing, library, program)2016-03-170.1.0.3axm
taskell560.00A command-line kanban board/task manager (bsd3, command-line-tools, library, program)2021-08-261.11.4smallhadroncollider
tasklite82.00CLI task / todo list manager with SQLite backend (agpl, cli, program, task, todo)2025-07-260.5.0.0adrian
tasty-auto (deprecated in favor of tasty-discover)260.00Auto discovery for Tasty with support for ingredients and test tree generation (deprecated, library, mit, program, testing)2017-03-040.2.0.0minad
tasty-autocollect380.00Autocollection of tasty tests. (bsd3, library, program, testing)2024-12-210.4.4brandonchinn178
tasty-discover1142.257Test discovery for the tasty framework. (library, mit, program, testing)2025-10-255.2.0newhoggy, haskellworks
tasty-html450.02Render tasty output to HTML (library, mit, program, testing)2024-01-010.4.2.2RomanCheplyaka, jdnavarro, 414owen
tasty-integrate30.01automated integration of QuickCheck properties into tasty suites (bsd3, program, testing)2014-02-020.0.1jfeltz
tasty-mgolden50.01Golden testing provider for tasty with muti-line diff output (bsd3, library, program, testing)2020-09-270.0.2mbj
tasty-process42.00Test execution of external processes with Tasty (gpl, library, program, testing)2024-03-140.1.0.1pcloud
tasty-quickcheck-laws150.01Pre-built tasty trees for checking lawful class properties using QuickCheck (bsd3, library, program, quickcheck, tasty, testing)2019-02-160.0.3nbloomf
tasty-sugar832.01Tests defined by Search Using Golden Answer References (library, program, testing)2026-07-062.2.4.0KevinQuick
tateti-tateti90.01Meta tic-tac-toe ncurses game. (bsd3, game, program)2015-11-240.1.0.1alvare
tccli60.01TokyoCabinet CLI interface (bsd3, database, program)2010-06-060.0.1JaroslavGridin
tce-conf170.01Very simple config file reading (bsd3, configuration, library, program)2016-10-101.3DinoMorelli
tdlib-gen120.01Codegen for TDLib (bsd3, codegen, library, program)2020-06-070.4.0Poscat
tds40.00Pure Haskell TDS protocol implementation. Mainly for beam-mssql and beam-sybase (database, library, mit, program)2019-03-180.1.0.0TravisAthougies
technique20.00Procedures and Sequences (library, mit, program, tools)2020-11-080.2.5AndrewCowie
tedious-web70.00Easily define multiple interrelated data types (bsd3, library, program, web)2024-07-230.2.1.4WonderBear
telegram-bot100.00Telegram Bot microframework for Haskell (bsd3, library, program, web)2016-12-280.5.4.0akru
teleport60.00A tool to quickly switch between directories (library, mit, program, tools)2016-01-050.0.0.10bollu
tellbot700.01IRC tellbot (gpl, network, program)2016-05-250.6.1DimitriSabadie
tempered110.00A dead-simple shell interpolation templating utility (bsd3, library, program, templating)2017-04-290.2.0ChrisPenner
templateify90.01Make template from website (gpl, program, web)2017-01-150.1.0.1AlanHawkins
templatise310.00You can use template.hs to create a new Haskell GitHub repository. (library, program, vscode)2024-09-280.1.7.0alunduil
tempo20.00Command-line tool to log time-tracking information into JIRA Tempo plugin (bsd3, library, na, program)2016-04-100.1.0.0trubeko
tempus40.01Interpreter for the FRP language Tempus (bsd3, compilers-interpreters, frp, language, program)2011-08-310.1.0MatthiasReisner
tempus-fugit52.00Programmers' time tracker (agpl, library, program, utils)2015-08-120.1.0.1kadoban
tensor-safe82.00Create valid deep neural network architectures (ai, bsd3, dependent-types, language, library, program)2019-05-030.1.0.1leopiney
tensorflow-mnist70.00TensorFlow demo application for learning MNIST model. (library, machine-learning, program)2018-08-030.1.0.0fmayle
tensort622.00Tunable sorting for responsive robustness and beyond (data, library, math, mit, program)2025-02-141.1.0.0kaBeech
termbox-bindings150.00Bindings to the Termbox library (bsd3, library, program, text)2015-05-100.1.0.5lcfrs
termcolor110.00Composable terminal colors (gpl, library, program, web)2017-03-300.2.0.0mdibaiee
terminal-3d-graphics110.00A terminal 3D rasteriser with textures, portals, and baked lighting (graphics, library, program)2026-10-110.2.0.0LarzP123
terminal-punch160.00Simple terminal-based time tracker (bsd3, program, utils)2026-01-150.2.1EmilAxelsson
termonad732.50Terminal emulator configurable in Haskell (bsd3, library, program, text)2024-02-044.6.0.0cdepillabout
termplot50.01Plot time series in your terminal using commands stdout (console, mit, program)2015-11-190.1.0.0jimenezrick
terraform-http-backend-pass90.00HTTP backend to store terraform state using pass and git (library, program, terraform)2023-05-290.1.0.1axeman
tersmu130.01A semantic parser for lojban (gpl, language, library, program)2018-04-290.2.2mbays
test-karya80.00Testing framework. (bsd3, haskell, library, program, test)2018-10-010.0.3EvanLaforge
test-lib360.00A library to make a quick test-runner script. (library, program, testing)2025-05-120.5IavorDiatchki, ryanglscott, galoisinc, sauclovian_g
test-sandbox-compose130.01Lightweight development enviroments using test-sandbox (bsd3, library, program, testing)2015-03-180.1.3junjihashimoto
testPkg30.01Small test package (program, unclassified)2014-08-250.0Stephen_E_A_Britton
testpattern70.01Display a monitor test pattern (bsd3, graphics, program)2008-08-310.1DonaldStewart
tetris80.01A 2-D clone of Tetris (bsd3, game, program)2008-12-220.27178GwernBranwen
tex-join-bib60.00Compile separate tex files with the same bibliography. (bioinformatics, gpl, library, program)2020-03-120.1.0.0GregorySchwartz
tex2txt70.01LaTeX to plain-text conversion (gpl, library, program, text)2015-03-240.1.0.0vdaudaravicius
texbuilder160.01View your latex output while editing (gpl, latex, program)2018-04-150.1.4.1xaverdh
text-ldap660.01Parser and Printer for LDAP text data stream (bsd3, library, program, text)2021-09-060.1.1.14KeiHibino
text-replace392.01Simple text replacements from a list of search/replace pairs (apache, application, library, program, text)2026-06-030.1.0.4chris_martin
textmatetags100.01A simple Haskell program to provide tags for Haskell code completion in TextMate (compilers-interpreters, mit, program)2011-03-260.0.1.2AlessandroVermeulen
tftp70.01A library for building tftp servers (bsd3, library, network, program)2012-11-190.2SvenHeyll
thank-you-stars70.00Give your dependencies stars on GitHub! (bsd3, library, program, utils)2022-02-051.0.1y_taka_23
the-snip100.00Command line tool for extracting demarcated snippets from text files. (bsd3, library, program, tool)2022-10-110.1.0.0RobertFischer
themoviedb480.02Haskell API bindings for http://themoviedb.org (api, library, mit, network, program)2022-07-131.2.2PeterJones
themplate140.01Project templating tool (application, bsd3, console, development, program, template)2015-07-081.2BennoFuenfstueck
theoremquest-client80.01A simple client for the TheoremQuest theorem proving game. (bsd3, formal-methods, game, program, theorem-provers)2011-02-280.0.0TomHawkins
thih70.01Typing Haskell In Haskell (bsd3, language, library, program)2008-04-041.0GwernBranwen, ocramz
thimk (deprecated in favor of spelling-suggest)60.01Command-line spelling word suggestion tool (application, bsd3, console, deprecated, program, text)2010-09-130.3.1BartonMassey
thock70.00A modern TUI typing game featuring online racing against friends. (game, library, mit, program)2021-01-150.2.1.0rmehri01
threadPool100.01Runs other programs in the manner of a thread pool (program, system)2011-01-070.3.1BrianJaress
threads-supervisor340.02Simple, IO-based library for Erlang-style thread supervision (concurrency, library, mit, program)2022-06-071.2.0.2AlfredoDiNapoli, MikolajKonarski
threadscope582.251A graphical tool for profiling parallel Haskell programs. (bsd3, development, profiling, program, trace)2026-07-020.2.15.1DuncanCoutts, MikolajKonarski, MitsutoshiAoe, SatnamSingh, SimonMarlow, teo
threepenny-gui-contextmenu40.00Write simple nested context menus for threepenny-gui. (bsd3, library, program, web)2017-01-240.1.0.0barischj
threepenny-gui-flexbox401.50Flexbox layouts for Threepenny-gui. (bsd3, library, program, web)2017-04-250.4.2barischj
thrift-compiler90.00A compiler from the Thrift Interface Definition Language (IDL) to Haskell (bsd3, library, program, thrift)2026-02-120.3.0.0SimonMarlow
tianbar1340.01A desktop bar based on WebKit (library, mit, program, system)2017-02-051.2.5AlexeyKotlyarov
tic-tac-toe20.01Useful if reading "Why FP matters" by John Hughes (bsd3, game, program)2008-03-300.1HristoAsenov
ticket-management80.00A basic implementation of a personal ticket management system (development, library, mit, program)2021-08-200.2.0.0sgschlesinger
tidal-link390.02Ableton Link integration for Tidal (gpl, library, program, sound)2026-07-021.2.2AlexMcLean, MatthewKaney, MartinGius
tidal-vis400.01Visual rendering for Tidal patterns and osc messages (gpl, library, program, sound)2019-08-291.0.15AlexMcLean, MatthewKaney, MartinGius
tiger110.01Tiger Compiler of Universiteit Utrecht (bsd3, compiler, program)2011-08-151.1.1ArieMiddelkoop
tigerbeetle-hs20.00A Haskell client library for Tigerbeetle database (bsd3, database, experimental, library, program)2025-09-050.1.0.0agentultra
tikzsd30.00A program for generating LaTeX code of string diagrams. (library, math, mit, program)2021-05-041.0.0anthonyywang
tilia360.00A formatter for Haskell source code (bsd3, development, formatting, library, program)2026-11-010.1.4.0mrkkrp
timberc90.01The Timber Compiler. (bsd3, program, unclassified)2009-05-191.0.3PeterJonsson
time-series80.01Time series analysis. (data, gpl, library, program)2013-11-080.1.0.0AtsuroHoshino
timecalc80.01 (console, mit, program)2011-05-020.1.1ChrisEidhof
timeconsole190.01time each line of terminal output (gpl, program, testing)2019-03-150.1.0.5AlanHawkins
timeless-tutorials50.00Initial project template from stack (bsd3, library, program, web)2016-12-081.0.0.0carldong
timeplot1640.01A tool for visualizing time series from log files. (bsd3, graphics, program)2020-05-171.0.33EugeneKirpichov
timestamp-subprocess-lines130.01Run a command and timestamp its stdout/stderr lines (bsd3, program, scripting)2016-09-170.1.0.4EyalLotem
timestamper180.01Read standard input and prepend each line with a timestamp (mit, program, system)2015-07-311.0.3kisom
timeutils32.00Time utilities (gpl, library, program, time)2019-08-060.1.0jlamothe
tintin422.00A softer alternative to Haddock (apache, documentation, library, program)2020-01-231.10.1NickSeagull
tinyXml180.00A fast DOM parser for a subset of XML (bsd3, library, program, xml)2017-01-090.1.0.2PepeIborra
tinytools-vty150.00tinytools-vty is a terminal based monospace unicode diagram editing tool (bsd3, graphics, library, program, tinytools)2023-12-260.1.0.7pdlla, minimaple
tip-haskell-frontend130.00Convert from Haskell to Tip (bsd3, library, program, theorem-provers)2015-10-280.2DanRosen
tip-lib180.01tons of inductive problems - support library and tools (bsd3, library, program, theorem-provers)2015-12-150.2.2DanRosen
titan70.01Testing Infrastructure for Temporal AbstractioNs - GUI to debug temporal programs (gpl, program, testing)2020-01-221.0.2keera_studios_ci
titlecase282.02Convert English Words to Title Case (bsd3, library, program, text)2017-07-171.0.1PeterSimons, NikitaKaretnikov
tldr822.00Haskell tldr client (bsd3, cli, library, program, web)2026-06-300.9.3psibi
tls-debug680.01Set of programs for TLS testing and debugging (bsd3, network, program)2019-10-150.4.8KazuYamamoto, VincentHanquez, OlivierCheron
tlynx940.00Handle phylogenetic trees (bioinformatics, gpl, library, program)2025-08-110.9.0.0dschrempf
tmp-postgres2232.255Start and stop a temporary postgres (bsd3, library, program, web)2019-12-291.34.1.0JonathanFischoff, parsonsmatt
tmpl40.01simple executable for templating (data, gpl, program)2014-09-250.0.0.1michelk
tn220.01A simple daily journal program (data, library, program, text, utility)2016-05-174.1.0.0pharpend
toboggan100.00Twitter bot generator (bsd3, library, program, web)2017-04-030.1.0.1
todos280.01Easy-to-use TODOs manager. (bsd3, desktop, library, program, utils)2013-01-310.5.3.2IlyaPortnov
toilet70.01Manage the toilet queue at the IMO (console, program)2023-12-220.0.2.1HenningThielemann
token-limiter180.00Fast rate limiting using the token bucket algorithm (BSD) (bsd2, concurrency, library, program)2019-11-040.2.0.3GregoryCollins
token-search40.00 (library, mit, program, unclassified)2019-12-220.1.0.0joshuaclayton
tokstyle100.00TokTok C code style checker (development, gpl, library, program)2021-12-250.0.8iphydf
toktok70.01 (library, natural-language-processing, program)2010-04-290.5GregoireDetrez
toml-test-drivers30.00toml-parser test drivers (program, text)2024-02-241.0.0.0EricMertens
tomlcheck600.01Command-line tool to check syntax of TOML files (bsd3, data, program, toml)2019-04-270.1.0.40vmchale
too-many-cells950.00Cluster single cells and analyze cell clade relationships. (bioinformatics, gpl, library, program)2022-10-063.0.1.0GregorySchwartz
toodles620.01Manage the TODO entries in your code (library, mit, program, project-management)2019-07-191.2.3aviaviavi
tophat330.00Template-to-Haskell preprocessor, and templating language (gpl, library, program, web)2024-05-211.0.8.0jcranch
topkata240.01OpenGL Arcade Game (game, program)2015-05-250.2.4ChristophBauer
touched110.01Library (and cli) to execute a procedure on file change. (library, mit, program, system)2015-03-270.2.0.1crough
toxcore-c90.00Haskell bindings to the C reference implementation of Tox (gpl, library, network, program)2024-12-040.2.19iphydf
toysolver1250.04Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc (algorithms, bsd3, constraints, formal-methods, library, logic, optimisation, optimization, program, smt, theorem-provers)2026-07-200.10.0MasahiroSakai
tpar50.01simple, parallel job scheduling (bsd3, program, system)2016-08-010.1.0.0BenGamari
tpb80.01Applications for interacting with the Pushbullet API (gpl, program, web)2017-08-010.4.0.0tsani
tpdb810.01Data Type for Rewriting Systems (gpl, library, logic, program)2026-06-062.9.0JohannesWaldmann
tracked-files30.00Package to list all tracked and untracked existing files via Git. (library, mit, program, system)2020-03-030.1.0.0joshuaclayton
trackit360.01A command-line tool for live monitoring (bsd3, development, program)2026-02-210.8.1EmilAxelsson
trade-journal50.00 (bsd3, library, program, unclassified)2020-11-130.0.2JohnWiegley
trajectory70.01Tools and a library for working with Trajectory. (bsd3, library, network-apis, program)2011-12-280.1.0.0MikeBurns
transf290.01Text transformer and interpreter. (bsd3, compilers-interpreters, library, program, text)2014-08-190.13.1HansHoglund
transfer-db100.00ODBC database transfer (bsd3, database, library, program)2018-03-170.3.1.2mihaigiurgeanu
transformations160.01Generic representation of tree transformations (gpl, language, library, program)2015-02-150.2.0.0JeroenBransen, JosePedroMagalhaes
transient-universe880.03fully composable remote execution for the creation of distributed systems (control, distributed-computing, library, mit, program)2020-07-290.6.0.1AlbertoCorona, geraldus
translate-cli50.00Translation cli tool (cli, library, mit, program)2017-10-151.0.0.0andys8
travis-meta-yaml160.00.travis.yml preprocessor (bsd3, development, library, program)2015-08-100.1.0.0phadej
travis-pogodi40.00A better travis_wait (bsd3, development, library, program, web)2017-07-120.1.0dbushev
trawl30.01A tool for finding haddocks (bsd3, development, program)2015-08-160.1.0.0bmjames
traypoweroff60.01Tray Icon application to PowerOff / Reboot computer (application, bsd3, program)2010-04-081.0.0LuisCabellos
tree-edit-distance30.00Tree Edit Distance to determine the similarity between two trees (algorithms, bsd3, library, program)2025-02-060.1.0.0TillmannVogt
treemap-html-tools (deprecated)90.01Treemap related commands for producing foldable TreeMap HTML. (bsd3, deprecated, graphics, library, program)2010-03-060.2RadoslavDorcik
trek-app60.00A PostgreSQL Database Migrator (bsd3, database, library, program)2020-07-130.1.0.0JonathanFischoff
tricorder1100.00Continuous Haskell build status, diagnostics, and tests via a shared daemon (development, library, mit, program)2026-10-291.0.0.0AlexanderVershilov, Gipphe, tweag
tricorder-mcp650.00MCP server for Tricorder (ai, development, library, mit, program)2026-10-301.0.0.1AlexanderVershilov, Gipphe, tweag
trigger130.00Trigger is a cross platform file system watcher for super fast build-and-restart workflows. (bsd3, library, program, web)2017-12-181.0.2.0rhyskeepence
trim40.00A command-line tool for trimming whitespace (bsd3, library, program, text)2019-01-300.1.0.0ndrewtl
trimpolya80.01Search for, annotate and trim poly-A tail (bioinformatics, program)2009-12-150KetilMalde
tropical-geometry70.00A Tropical Geometry package for Haskell (algebra, geometry, gpl, library, program, tropical-geometry, tropical-geometry-)2020-01-130.0.0.1ferynando7
truelevel120.01Audio file compressor-limiter (bsd3, program, sound)2014-09-210.1.3.1BartonMassey
trurl410.00Haskell template code generator (bsd3, development, library, program)2015-11-240.4.1.0dbushenko
tsne120.00t-SNE (algorithms, library, program)2017-03-111.3.0robagar
tsp-viz50.01Real time TSP tour visualization. (bsd3, graphics, program)2012-12-100.1.0.0DavidNilsson
tsuntsun50.01Interacts with tesseract to ease reading of RAW Japanese manga. (bsd3, natural-language-processing, program)2017-09-030.2.0.0MateuszKowalczyk
tsv2csv230.00Convert tsv to csv (bsd3, library, program, text)2017-04-120.1.0.2mackeyrms
tsvsql100.01Template tsv into SQL (mit, program, text)2016-07-090.2.1.0DanielChoi
tsweb110.00An API binding Web.Spock to Database.Beam (bsd3, library, program, web)2019-06-210.1.2tsuraan
ttask60.00This is task management tool for yourself, that inspired by scrum. (bsd3, data, library, program)2016-06-100.0.1.0outoftune
ttn-client170.00TheThingsNetwork client (bsd3, library, program, web)2021-04-020.2.2.0srk
tttool (deprecated)540.01Working with files for the Tiptoi® pen (deprecated, mit, program, reverse-engineering)2019-03-301.8.1JoachimBreitner
tui-launcher30.00Small Brick-based terminal launcher (console, mit, program)2026-03-170.0.1tritlo
tuispec120.00Playwright-like black-box testing for terminal UIs over PTY (library, mit, program, testing)2026-06-060.3.1.1tritlo
tup-functor180.01Homogeneous tuples (bsd3, data, library, program)2014-10-310.3.0.0BalazsKomuves
tuple-fields30.00Access tuple fields using record dot syntax (bsd3, development, library, program)2023-03-230.1.0.0DavidBinder
turing-music100.01Plays music generated by Turing machines with 5 states and 2 symbols (bsd3, game, program)2008-10-070.1.1PeterDivianszky
turkish-deasciifier50.00Haskell port of Deniz Yuret's Turkish deasciifier. (language, library, mit, program)2015-07-220.1.0.0cattheory
turncoat40.00Elegant UCI chess engine (bsd3, chess-engine, library, program)2025-01-211.0albertprz
turni60.01shifts scheduling tool (bsd3, commerce, program, scheduling)2011-01-152011.1.15PaoloVeronelli
turtle-options170.00Collection of command line options and parsers for these options (bsd3, library, program, utils)2016-03-030.1.0.4elaye
tw20.01Trailing Whitespace (bsd3, program, text)2016-11-060.1.0.0lovasko
twee750.01An equational theorem prover (bsd3, program, theorem-provers)2026-08-272.7.1NickSmallbone
tweet-hs1400.01Command-line tool for twitter (bsd3, library, program, web)2021-07-251.0.2.3vmchale
twentyseven110.00Rubik's cube solver (algorithms, library, mit, program)2025-08-011.0.0lyxia
twfy-api-client60.00They Work For You API Client Library (api, bsd3, library, program)2017-01-010.1.0.0wiggly
twhs60.01CLI twitter client. (library, mit, program, web)2014-06-020.1.0.3ShinichiroSuzuki
twidge310.01Unix Command-Line Twitter and Identica Client (network, program)2014-06-211.1.2JohnGoerzen
twirl80.00Simple 2D Game Engine (game-engine, library, program)2023-04-220.4.0.4LassiHaasio
twitter80.01A Haskell-based CLI Twitter client (bsd3, network, program)2008-05-100.1.1ChrisEidhof
twobitreader40.00reader for the 2bit file format (bioinformatics, bsd3, library, program)2025-02-121.0.1ustenzel
txt-sushi160.03The SQL link in your *NIX chain (bsd3, console, database, library, program)2013-02-280.6.0KeithSheppard
txt2rtf70.01Filter to convert plain text files to RTF (program, text)2010-04-201.0.1JohnGoerzen
typalyze160.01Analyzes Haskell source files for easy reference (bsd3, development, program)2008-03-090.1.1MatthewDanish
type-machine52.00Type-level functions for record types (bsd3, library, program, types)2025-09-020.1.0.2ArthiChaud
typechain130.00An implementation of LangChain in Haskell (ai, gpl, library, program)2024-01-280.2.0.0archaversine
typed-protocols-doc30.00Derive documentation from typed-protocols source code (apache, library, network, program)2025-05-210.2.0.0coot
typed-spreadsheet200.01Typed and composable spreadsheets (bsd3, gui, library, program)2020-02-291.1.5GabrielGonzalez
typed-wire280.00Language-independent type-safe communication (library, mit, program, web)2016-06-140.3.1.1AlexanderThiemann
typeof130.01Small script for inferring types (bsd3, development, program)2011-05-040.1.2DonaldStewart, KangyuanNiu
typescript-docs60.01A documentation generator for TypeScript Definition files (language, mit, program)2014-01-070.0.3PhilFreeman
typograffiti212.01Just let me draw nice text already (bsd3, graphics, library, program)2023-02-170.2.0.1SchellScivally, alcinnz
uAgda160.01A simplistic dependently-typed language with parametricity. (dependent-types, program)2012-03-101.2.0.4JeanPhilippeBernardy
uacpid140.01Userspace Advanced Configuration and Power Interface event daemon (bsd3, program, system)2015-07-011.2DinoMorelli
uhc-light1540.02Part of UHC packaged as cabal/hackage installable library (bsd3, development, library, program)2018-01-011.1.10.0AtzeDijkstra
uhd90.00Interface with Ettus USRP SDRs (library, mit, network, program)2026-05-300.1.1.0TravisWhitaker
uhexdump110.01hex dumper for UTF-8 text (bsd3, program, text)2011-08-070.3EricKow
uhttpc110.01Minimal HTTP client library optimized for benchmarking (gpl, library, network, program)2019-05-290.1.1.1HerbertValerioRiedel
ui40.00Minimalistic console UI (getLine), arrow key support (edit, browse cmd history). (console, data, library, mit, program, text, ui)2024-12-281.0.0drJonas
ui-command160.01A framework for friendly commandline programs (bsd3, development, library, program)2010-11-290.5.4ConradParker
uku50.00Display Ukulele fingering charts in the terminal (library, program, unclassified)2025-06-140.0.2.0adrian
ulid142.02Implementation of ULID - Universally Unique Lexicographically Sortable Identifier (bsd3, codec, data, database, library, program)2025-02-030.3.3.0steven777400, adrian, haskell_github_trust
una120.01Universal un-archiver utility (bsd3, program, utilities)2012-09-062.1.0JohnWiegley
unboxed-references60.00A library for reference cells backed by unboxed-vectors (bsd3, data, library, program)2019-12-160.1.0callanmcgill
unbreak70.00Secure and resilient remote file storage utility (agpl, library, network, program)2015-12-310.3.1kinoru
uncaught-exception80.01Customize uncaught exception handling. (library, mpl, program, unclassified)2020-10-100.1.0gromak, serokell
unclogging170.00a library which implements easy, concurrent and pretty logging (agpl, concurrency, library, program)2024-10-100.1.0.3mangoiv
unicoder170.01Make writing in unicode easy. (bsd3, library, program, text)2017-06-100.5.0ZankokuOkuno
uniq-deep210.01uniq-deep (console, mit, program, public-domain)2021-07-051.2.1ncaq
unique-lang20.00Esoteric programming language where each number can only appear once (compilers-interpreters, mit, program)2022-07-290.1.0.0OwenBechtel
uniqueness-periods-vector-examples1310.00Usage examples for the uniqueness-periods-vector series of packages (game, language, library, math, mit, phonetic-languages, program, uniqueness-periods)2021-02-020.15.0.0OleksandrZhabenko
unity-testresult-parser530.00 (bsd3, library, program, tool, unity3d)2020-03-070.1.0.10incertia
unlambda180.03Unlambda interpreter (compilers-interpreters, library, program)2016-06-050.1.4.2GwernBranwen, abbradar, ncfavier
unleash-client-haskell240.00Unleash feature toggle client (library, mit, program, web)2025-05-020.8.1evenbrenden
unliftio-messagebox120.01Fast and robust message queues for concurrent processes (bsd2, concurrency, library, program)2021-02-162.0.0SvenHeyll
unlit372.01Tool to convert literate code between styles or to code. (bsd3, language, library, program)2016-12-180.4.0.0wenkokke
unmed2 (deprecated in favor of med-module)40.01Extract useful information from Amiga MED files (deprecated, gpl, program, sound)2017-07-010.0HenningThielemann
unpacked-containers42.00Unpacked containers via backpack (bsd2, language, library, program)2018-04-060EdwardKmett
unscramble120.01Solve Boggle-like word games (mit, program, text)2013-12-301.0JoelTaylor
unusable-pkg60.01Utility construction of the graph depending unusable packages. (bsd3, program, utils-)2010-12-250.1YuriyIskra
unused230.00A command line tool to identify unused code. (cli, library, mit, program)2019-11-010.10.0.0joshuaclayton
up190.01Command-line tool to generate paths for moving upward in a file system (bsd3, program, utils)2020-09-112.0.0.0ThomasEding
up-grade80.01Software management tool (build, program)2015-02-100.0.2ppenzin
update-nix-fetchgit230.00A program to update fetchgit values in Nix expressions (bsd3, library, nix, program)2022-12-120.2.11jophish, srk, jpierre03, expipiplus1
update-repos20.00Update all your git repositories with just one command. (apache, command-line-tool, library, program)2017-02-120.0.1pedrovgs
updo30.00A style of maintaining and upgrading Haskell projects (development, mpl, program)2023-07-141.0.0philderbeast
ureader50.01Minimalistic CLI RSS reader. (bsd3, program, rss)2013-09-170.2.0.0SamTruzjan
urembed90.01Ur/Web static content generator (bsd3, development, program, ur-web)2013-10-310.5.0.1SergeyMironov
uri-template40.02URI template library for Haskell (bsd3, library, program, web)2008-11-110.2SigbjornFinne
urlcheck80.01Parallel link checker (bsd3, network, program)2008-06-150.1.1DonaldStewart
urldecode60.01Decode percent-encoded strings. (bsd3, program, text)2012-06-261.0.0.2BenedictEastaugh
urxml60.01XML parser-printer supporting Ur/Web syntax extensions (development, program, public-domain, ur-web)2013-10-310.2.0.0SergeyMironov
useragents (deprecated)70.00A collection of user agents (deprecated, library, mit, network, program)2019-02-191.0.0
utf8-prelude (deprecated)360.02Variants of Prelude and System.IO with UTF8 text I/O operations (bsd3, deprecated, library, program, system)2008-11-110.1.6PeterDivianszky
utxorpc-client210.00An SDK for clients of the UTxO RPC specification. (apache, blockchain, cardano, library, network, program)2026-08-270.0.5.0carbolymer, dMayhew, txpipe
utxorpc-server290.00An SDK for UTxO RPC services. (apache, blockchain, cardano, library, network, program)2026-08-270.0.5.0carbolymer, dMayhew, txpipe
uu-cco-examples60.01Utilities for compiler construction: example programs (bsd3, compilers-interpreters, program)2014-10-300.1.0.1AtzeDijkstra
uuagc3330.05Attribute Grammar System of Universiteit Utrecht (bsd3, development, library, program)2025-09-270.9.57ArieMiddelkoop, AtzeDijkstra, DoaitseSwierstra, JeroenBransen
uuagc-bootstrap190.02Attribute Grammar System of Universiteit Utrecht (bsd3, development, library, program)2011-12-190.9.40.2ArieMiddelkoop, JeroenBransen
uuagd130.01A debugger for the UUAG system. (development, library, program)2014-04-100.1.0.2MatthijsSteen
uusi350.00Tweak .cabal files (distribution, library, mit, program)2026-06-180.4.4.0felixonmars, berberman
v4l2-examples90.01video for linux two examples (bsd3, graphics, program)2013-02-180.1.0.2ClaudeHeilandAllen
vabal172.250the cabal companion (development, distribution, gpl, program)2019-01-102.0.0Franciman
vacuum-opengl140.01Visualize live Haskell data structures using vacuum, graphviz and OpenGL. (development, library, program, public-domain)2010-01-140.0.3BalazsKomuves
vado400.02Runs commands on remote machines using ssh (development, library, mit, program)2022-10-020.0.14HamishMackenzie
valiant-cli150.00Compile-time checked SQL for Haskell: CLI tool (bsd3, database, library, program)2026-04-300.1.0.1joshburgess
vampire180.01Analyze and visualize expression trees. (development, gpl, library, program)2014-06-290.1.3.0benzrf
varan130.01Process mpileup output to identify significant differences (bioinformatics, program)2014-12-010.5.1KetilMalde
varying702.02FRP through value streams and monadic splines. (control, frp, library, mit, program)2019-10-210.8.1.0SchellScivally
vcatt70.00Recursively check that a directory is under version control. (bsd3, library, program, web)2016-04-250.1bergey
vcs-ignore180.01Query Git ignore rules and traverse visible repository entries. (bsd3, development, library, program)2026-08-310.1.0.0xwinus
vcsgui280.02GUI library for source code management systems (development, library, program)2017-08-140.2.2.0HamishMackenzie, StephanFortelny
vcswrapper510.03Wrapper for source code management systems (development, library, program)2017-08-140.1.6HamishMackenzie, StephanFortelny
vega-view662.00Easily view Vega or Vega-Lite visualizations. (bsd3, program, visualization)2026-01-110.4.0.2DouglasBurke
vehicle30.00Standard Classification for Space Launch & Reentry Vehicles (data, library, mit, program)2026-10-280.1.0.0dopamane
velma80.00Automatically add files to exposed-modules and other-modules. (distribution, library, mit, program)2022-02-130.2022.2.13fozworth
venzone492.250ASCII platform-adventure game (game, gpl, program)2025-08-201.1.2.0fffaaa
verdict30.01Validation framework (bsd3, library, program, unclassified)2015-10-300.0.0.0jkarni
verify (deprecated)40.00A new Haskeleton package. (deprecated, library, other, program)2017-05-020.0.0marnold
verismith242.00Random verilog generation and simulator testing. (gpl, hardware, library, program)2025-05-141.1.0ymherklotz
vfr-waypoints160.00VFR waypoints, as published in the AIP (ERSA) (aviation, bsd3, library, program)2018-07-310.1.0.2qfpl
vgrep260.00A pager for grep (bsd3, library, program, web)2021-01-260.2.3.0fmthoma
viewprof960.01Text-based interactive GHC .prof viewer (bsd3, development, program)2020-05-050.0.0.33MitsutoshiAoe
vimeta440.00Frontend for video metadata tagging tools (bsd2, library, program, video)2021-06-020.3.1PeterJones
vimus120.01An MPD client with vim-like key bindings (library, mit, program, sound)2015-04-280.2.1JoachimFasting, SimonHengel
vintage-basic150.01Interpreter for microcomputer-era BASIC (bsd3, compilers-interpreters, program)2017-08-021.0.3LyleKopnicky
virthualenv90.01Virtual Haskell Environment builder (bsd3, development, program)2013-12-090.2.2BartoszCwiklowski
vision200.01An XMMS2 client. (gpl, program, sound)2011-07-130.0.5.0OlegBelozeorov
visual-graphrewrite170.01Visualize the graph-rewrite steps of a Haskell program (bsd3, development, library, program)2010-06-070.4.0.1ZsoltDollenstein
visual-prof152.01Create a visual profile of a program's source code (bsd3, development, program)2014-02-260.5DanielVelkov
visualize-cbn160.01Visualize CBN reduction (bsd3, development, program)2026-07-020.2.2EdskoDeVries
visualize-type-inference40.00Simulate simple constraint-based type inference (bsd3, program, teaching)2025-12-090.0.1.0AndreasAbel
vk-posix-pty100.01Pseudo terminal interaction with subprocesses. (bsd3, library, program, system)2014-12-130.2.1VladimirKirillov
voicebase (deprecated)202.00Upload audio files to voicebase to get a transcription (api, bsd3, deprecated, library, program)2018-11-010.2.0.0
vpn-router90.00Switch VPN with web interface for LAN (bsd3, library, program, system)2026-02-040.0.1DaniilIaitskov
vrpn120.01Bindings to VRPN. (library, mit, network, program)2019-02-200.3.0.0BrianBush
vty-examples (deprecated in favor of vty-crossplatform)140.01Examples programs using the vty library. (bsd3, deprecated, program, user-interfaces)2016-05-115.5.0CoreyOConnor, JonathanDaugherty
vty-menu110.01A lib for displaying a menu and getting a selection using VTY (gpl, graphics, library, program)2016-10-110.0.4TimothyHobbs
vty-unix380.02Unix backend for Vty (bsd3, library, program, user-interfaces)2026-10-110.5.0.0JonathanDaugherty
wacom-daemon70.01Manage Wacom tablet settings profiles, including Intuos Pro ring modes (bsd3, desktop, library, program)2016-02-290.1.0.0IlyaPortnov
waddle220.00DOOM WAD file utilities. (bsd3, game, library, program)2015-10-130.1.0.6MartinGrabmueller
wai-accept-language70.00Rewrite based on Accept-Language header (bsd3, library, program, web)2015-12-270.1.0.1tkmsm
wai-app-static6150.037WAI application for static serving (library, mit, program, web, yesod)2026-03-093.2.1KazuYamamoto, MichaelSnoyman, nideco
wai-devel110.00A web server for the development of WAI compliant web applications. (library, mit, program, web)2016-03-210.0.0.4urbanslug
wai-feature-flags222.00Feature flag support for WAI applications. (bsd3, library, program, web)2026-05-250.1.0.9stoeffel, JasperWoudenberg
wai-handler-devel (deprecated in favor of yesod-bin)860.02WAI server that automatically reloads code after modification. (deprecated) (deprecated, library, mit, program, web)2014-03-262.0.0.2MichaelSnoyman
wai-lambda110.00Haskell Webapps on AWS Lambda (library, mit, program, web)2023-02-050.1.1.0nmattia
wai-logger-buffered50.00Buffer requets before logging them (bsd3, library, program, web)2018-01-150.1.0.1ChrisCoffey
wai-make-assets130.01Compiling and serving assets (bsd3, development, library, program)2021-07-240.3SoenkeHahn
wai-middleware-auth522.02Authentication middleware that secures WAI application (library, mit, program, web)2022-03-240.2.6.0MichaelSnoyman, lehins, JasperWoudenberg
wai-middleware-brotli40.00WAI middleware for brotli compression (bsd3, library, program, web)2017-10-280.1.0.0IanDuncan
wai-middleware-crowd250.00Middleware and utilities for using Atlassian Crowd authentication (library, mit, program, web)2016-08-170.1.4.2MichaelSnoyman
wai-secure-cookies240.01WAI middleware to automatically encrypt and sign cookies (library, mit, program, web)2026-05-300.1.0.9alaminium
wai-session-redis152.00Simple Redis backed wai-session backend. (bsd3, library, program, web)2022-03-200.1.0.5t4ccer
waldo50.00A generator of comics based on some ascertainable data about the requester. (bsd3, library, program, web)2017-05-010davean
wallpaper150.00A library and executable for creating wallpaper, frieze, and rosette patterns. (bsd3, graphics, library, program)2017-05-260.1.0.1jeffreyrosenbluth
warc180.00A parser for the Web Archive (WARC) format (bsd3, data, library, program)2022-01-051.0.5BenGamari
warp-dynamic90.01Dynamic configurable warp HTTP server (bsd3, library, network, program)2012-02-110.1.0HideyukiTanaka
warp-static (deprecated in favor of wai-app-static)730.01Static file server based on Warp and wai-app-static (deprecated) (deprecated, mit, program, web)2014-03-212.0.1.1MichaelSnoyman
warp-systemd132.01Socket activation and other systemd integration for the Warp web server (WAI) (bsd3, library, program, web)2023-06-220.3.0.0RobertHensing, domenkozar
wasmedge-hs50.00Haskell FFI bindings for the WasmEdge 0.18 WebAssembly runtime (ffi, language, library, mit, program, webassembly)2026-11-070.18.1.0tusharad
watchit30.01File change watching utility (bsd3, development, library, program)2014-11-190.1.0.0tanimoto
waterfall-cad-examples1012.00Examples for Waterfall CAD, a Declarative CAD/Solid Modeling Library (graphics, lgpl, library, program)2026-10-250.8.0.0josephwarren
wavconvert70.01Command-line tool for converting audio files and filling in ID3 tags (bsd3, program, sound)2008-08-190.1.1TimChevalier
wavy50.01Process WAVE files in Haskell. (bsd3, library, program, sound)2014-06-160.1.0.0RobertMassaioli
wd60.00Run a command on a specified directory. (apache, data, program)2022-10-180.1.0.0kakkun61
weatherhs60.00Weather and related data info command-line tool (application, command-line-tool, gpl, program)2022-09-011.0.0NH000
web-rep1050.03representations of a web page (bsd3, library, program, web)2026-03-300.14.1.0tonyday567
webcloud60.00Turn an optparse-applicative program into a CGI program! (bsd2, library, program, web)2016-05-090.1.0.1ThomasSutton
webdriver3002.010a Haskell client for the Selenium WebDriver protocol (browser, bsd3, library, program, selenium, testing, web, webdriver)2026-06-030.15.0.0AdamCurtis, MichaelSnoyman, thomasjm
webdriver-w3c190.00Bindings to the WebDriver API (gpl, library, program, testing, web, webdriver)2022-06-290.0.3nbloomf
webex-teams-api140.02A Haskell bindings for Webex Teams API (library, mit, program, web)2020-07-290.2.0.1nshimaza
webex-teams-conduit150.00Conduit wrapper of Webex Teams List API (library, mit, program, web)2020-07-290.2.0.1nshimaza
webex-teams-pipes80.00Pipes wrapper of Webex Teams List API (library, mit, program, web)2020-07-290.2.0.1nshimaza
webgpu-dawn50.00Haskell bindings to WebGPU Dawn for GPU computing and graphics (gpu, graphics, library, mit, program)2025-12-300.1.1.0junjihashimoto
webidl90.01Parser and Pretty Printer for the Web IDL Language (bsd3, language, library, program)2009-06-080.1.1DmitryGolubovsky
webify180.01webfont generator (mit, program, web)2021-08-010.1.10.0ananthakumaran, srhb
webshow60.00Show programming language printed values in a web UI (bsd3, program, web)2019-04-070.0.0ChrisDone
websnap90.01Transforms URLs to PNGs (bsd3, program, web)2015-03-020.1.0.1jrb
wedding-announcement130.01a wedding announcement (factual, program, public-domain)2011-08-061.1PetrRockai
wedged150.01Wedged postcard generator. (demo, program)2023-01-164ClaudeHeilandAllen
weeder1922.51Detect dead code (bsd3, development, library, program)2026-09-152.11.0NeilMitchell, OliverCharles, teo, ryndubei
weekdaze330.00A school-timetable problem-solver. (application, library, program, teaching)2020-08-100.0.0.3AlistairWard
wembley30.01Pretty-printing of codebases (bsd3, pretty-printing, program)2016-11-280.1.0.0lovasko
werewolf1490.00A game engine for playing werewolf within an arbitrary chat client (bsd3, game, library, program)2017-09-221.5.2.0hjwylde
werewolf-slack340.01A chat interface for playing werewolf in Slack (bsd3, game, program)2016-08-171.0.2.0hjwylde
what4872.2511Solver-agnostic symbolic values support for issuing queries (bsd3, formal-methods, library, program, smt, symbolic-computation, theorem-provers)2026-09-011.8RobertDockins, ryanglscott, galoisinc, mccleeary, sauclovian_g, aschwerdfeger_galois
whim80.01A Haskell window manager (bsd3, library, program, system)2009-01-190.1.1GwernBranwen
whitespace50.01Whitespace, an esoteric programming language. (compilers-interpreters, program)2012-11-020.4HaroldLee
wikimusic-api80.00 (gpl, library, program, unclassified)2024-11-291.2.0.8jjba
wikimusic-ssr110.00 (gpl, library, program, unclassified)2024-11-291.0.1.6jjba
wikipedia4epub240.01Wikipedia EPUB E-Book construction from Firefox history. (bsd3, library, program, text)2011-10-020.0.12RadoslavDorcik
win-hp-path80.01Work with multiple Haskell Platform versions on Windows (bsd3, library, program, system)2014-11-120.1.2YitzGale
winery670.03A compact, well-typed seralisation format for Haskell values (bsd3, codec, data, library, parsing, program, serialization)2024-11-231.5FumiakiKinoshita
wireform-parquet50.00Apache Parquet metadata, column pages, and read/write (bsd3, codec, library, program)2026-11-060.1.0.0IanDuncan
wireform-proto110.00Protocol Buffers (proto2/proto3) with IDL parser, code generation, JSON mapping (bsd3, codec, data, library, network, program, serialization)2026-11-060.3.0.0IanDuncan
wiringPi140.00Access GPIO pins on Raspberry Pi via wiringPi library (bsd3, hardware, library, program, raspberrypi)2017-10-051.0.1.1ppelleti
with-utf8562.014Get your IO right on the first try (io, library, mpl, program)2024-01-171.1.0.0gromak, kirelagin, serokell
witty170.01A network server to show bottlenecks of GHC (bsd3, network, program, web)2015-01-230.0.4KazuYamamoto
wled-json102.00Convenient interface for interacting with WLED devices (bsd3, interfaces, library, program)2026-06-270.1.0.5alaendle
wlsunset-sni60.00StatusNotifierItem tray icon for controlling wlsunset (bsd3, library, program, system)2026-02-150.1.0.0eyevanmalicesun
wobsurv70.01A simple and highly performant HTTP file server (library, mit, network, networking, program, service)2014-10-120.1.0NikitaVolkov
woffex50.01Web Open Font Format (WOFF) unpacker. (bsd3, data, program)2011-05-010.1AndrewDrake
wol110.01Send a Wake on LAN Magic Packet (bsd3, library, network, program)2016-07-050.2TomLokhorst
wolf2180.00Amazon Simple Workflow Service Wrapper. (aws, cloud, distributed-computing, library, mit, network, program)2020-10-090.3.48markfine
word2vec-model62.00Reading word2vec binary models (bsd3, library, program, unclassified)2017-12-300.1.0.0filipg
wordchoice450.00Get word counts and distributions (bsd3, library, program, web)2023-01-180.1.2.9vmchale
wordify290.00 (bsd3, game, library, program)2026-04-040.7.0.0happy0
wordlist232.00Command-line tool to get random words (apache, application, library, program, text)2026-06-030.1.0.8chris_martin
wordpass360.01Dictionary-based password generator (bsd3, cryptography, library, password, program, system, tools)2023-03-081.0.0.11MichalGajda
wordsearch80.01A word search solver library and executable (algorithms, bsd3, library, program)2010-10-011.0.1ByronJohnson
wordsetdiff200.01Compare two files as sets of N-tuples of words. (bsd3, program, system)2013-05-170.0.3.1RyanNewton
work-time110.00A library for parsing a chat-based work hour reporting scheme. (bsd3, business, library, program)2018-07-040.1.2.0gonz
workflow-extra40.00Utilities (e.g. Googling the clipboard contents) for the `workflow` pacakge (bsd3, library, program, todo)2017-05-040.0.1sboo
workflow-osx80.00a "Desktop Workflow" monad with Objective-C bindings (accessibility, apple, automation, bindings, desktop, ffi-, gpl, library, program)2015-10-110.0.1sboo
workflow-pure80.00manipulate `workflow-types:Workflow`'s (bsd3, library, program, todo)2017-05-040.0.1sboo
workflow-types90.03Automate keyboard\/mouse\/clipboard\/application interaction. (bsd3, development, library, program)2017-05-040.0.1sboo
workflow-windows70.00Automate keyboard/mouse/clipboard/application interaction. (bsd3, development, program)2016-09-120.0.0sboo
wp-archivebot10.01Subscribe to a wiki's RSS feed and archive external links (bsd3, network, program)2009-06-040.1GwernBranwen
wrecker590.01An HTTP Performance Benchmarker (bsd3, library, program, web)2020-03-031.3.2.0JonathanFischoff, lorenzo
wrecker-ui390.01A web interface for Wrecker, the HTTP Performance Benchmarker (bsd3, program, web)2018-02-273.3.1.0lorenzo
ws140.00A simple CLI utility for interacting with a websocket (bsd3, library, program, web)2023-11-220.0.6athanclark
wsedit60.01A small tool to list, add and remove webseeds from a torrent file (gpl, network, program)2012-05-220.1.0.0LinusLuessing
wshterm70.00Terminal emulator over websockets. (bsd3, program, web)2019-03-110.1.0.1lukec
wsjtx-udp150.00WSJT-X UDP protocol (bsd3, ham, ham-radio, library, program, radio, wsjt-x, wsjtx)2025-06-130.5.0.0MarcFontaine
wstunnel170.00Tunneling program over websocket protocol (bsd3, library, program, web)2023-01-070.5.1.0erebe
wu-wei40.00Unimportant Unix adminstration tool (bsd3, program, system)2019-08-160.1.0.2fuzz
wxAsteroids90.01Try to avoid the asteroids with your space ship (bsd3, game, program)2015-09-231.1.0.1HenkJanVanTuyl, fgaz, GeorgeThomas, pranaysashank
wxFruit110.01An implementation of Fruit using wxHaskell. (bsd3, frp, gui, library, program, reactivity)2010-12-140.1.2.1HenkJanVanTuyl, KidoTakahiro, fgaz, GeorgeThomas, pranaysashank
wxdirect1030.03helper tool for building wxHaskell (bsd3, gui, library, program, user-interfaces)2017-04-280.92.3.0AtzeDijkstra, DanielFischer, EricKow, HenkJanVanTuyl, JeremyODonoghue, KidoTakahiro, fgaz, GeorgeThomas, pranaysashank
wxhnotepad90.01An example of how to implement a basic notepad with wxHaskell (bsd3, development, editor, education, ide, program)2010-05-121.2.0FernandoBenavides
wxturtle40.01turtle like LOGO with wxHaskell (bsd3, library, program, teaching)2012-09-280.0.1YoshikuniJujo
wyvern50.01An autoresponder for Dragon Go Server. (bsd3, game, program)2010-02-140.1DanielWagner
wyvern-diagrams452.00Simple flowchart diagrams. Inspired by DRAKON. (bsd3, development, library, program)2026-05-040.4.3.0Piotr_Justyna
x509-util460.01Utility for X509 certificate and chain (bsd3, data, program)2022-01-171.6.6KazuYamamoto, VincentHanquez
xbattbar70.01Simple battery indicator (graphics, mit, program)2012-10-070.2AlexanderPolakov
xcffib1110.01A cffi-based python binding for X (apache, library, program, x11)2026-10-181.13.0TychoAndersen
xchat-plugin90.01XChat (gpl, irc-client, library, program)2012-04-150.0.3CedricAuger
xdcc310.01A wget-like utility for retrieving files from XDCC bots on IRC (mit, network, program)2017-03-191.1.4JanGerlinger
xdot570.02Parse Graphviz xdot files and interactively view them using GTK and Cairo (bsd3, graphics, graphs, library, program)2024-01-070.3.0.5DennisFelsing
xgboost-haskell50.00XGBoost library for Haskell. (development, library, mit, program)2017-10-190.1.0.0sighingnow
xilinx-lava560.01The Lava system for Xilinx FPGA design with layout combinators. (bsd3, hardware, library, program)2024-03-295.0.2.0SatnamSingh
xkcd70.01Downloads the most recent xkcd comic. (application, bsd3, program)2012-08-050.1.1RobertSelvek
xls130.00Parse Microsoft Excel xls files (BIFF/Excel 97-2004) (bsd3, codec, data, library, parser, program, spreadsheet)2020-05-300.1.3harendra, olf
xlsx-templater42.01Simple and incomplete Excel file templater (codec, library, mit, program)2012-06-250.0.1KirillZaborsky
xml-prettify50.01Pretty print XML. (bsd3, library, program, text)2010-06-240.1.0.1DavidRosenberg
xml-prettify-text90.00XML pretty printer (efficient-xml-pretty-printer, gpl, library, program)2022-01-311.0.0.3MrcJkb
xml-to-json310.01Library and command line tool for converting XML files to json (library, mit, program, web, xml)2015-03-302.0.1NoamLewis
xml-to-json-fast180.01Fast, light converter of xml to json capable of handling huge xml files (json, library, mit, program, web, xml)2015-03-302.0.0NoamLewis
xml2json70.02translate xml to json (bsd3, library, program, text)2012-10-040.2.0.0YiHuang
xml2x170.01Convert BLAST output in XML format to CSV or HTML (bioinformatics, program)2009-10-070.4.2GwernBranwen, KetilMalde
xmltv40.01Show tv channels in the terminal (library, mit, program, system)2014-11-170.0.1dagle
xmobar2902.252A Minimalistic Text Based Status Bar (bsd3, library, program, system)2026-06-270.51.1AndreaRossato, JoseAntonioOrtegaRuiz
xmonad892.7516A tiling window manager (bsd3, library, program, system)2026-03-070.18.1AdamVogt, BrentYorgey, DonaldStewart, PeterJones, PeterSimons, SpencerJanssen, TomasJanousek, psibi, xmonad, TonyZorman
xmonad-bluetilebranch (deprecated in favor of bluetile)80.02A tiling window manager (bsd3, deprecated, program, system)2010-03-190.9.1.4JanVornberger
xmonad-dbus70.00 (bsd3, library, program, unclassified)2023-07-200.1.0.2troydm
xmonad-utils250.01A small collection of X utilities (bsd3, program, system)2014-06-010.1.3.3AndreaRossato, GwernBranwen, LeifWarner
xmonad-vanessa450.01Custom xmonad, which builds with stack or cabal. (bsd3, library, program, web)2019-01-042.1.0.1vmchale
xnobar220.00Text-based notification server for XMobar (bsd3, library, program, system)2026-05-281.0.0.4Aster89
xournal-convert60.01convert utility for xoj files (application, bsd3, library, program)2012-02-170.1.1IanWooKim
xpathdsv100.01Command line tool to extract DSV data from HTML and XML with XPATH expressions (bsd3, program, text)2016-05-250.1.1.0DanielChoi
xrefcheck250.00 (library, mpl, program, unclassified)2025-01-090.3.1int_index, gromak, martoon, dcastro, serokell
xsact130.01Cluster EST sequences (bioinformatics, program)2010-09-091.7.3GwernBranwen, KetilMalde
y0l0bot110.01#plaimi's all-encompassing bot (agpl, irc, program)2015-02-130.1.1alexander
yabi92.01Yet Another Brainfuck Interpreter (compilers-interpreters, mit, program)2017-06-220.2.0.0fgaz
yabi-muno120.01Yet Another Brainfuck Interpreter (language, library, mit, program)2015-03-080.1.0.1L8D
yackage1000.01Personal Hackage replacement for testing new packages. (bsd3, distribution, program, web, yesod)2016-10-130.8.1MichaelSnoyman
yam-web (deprecated)130.00Yam Web (deprecated, library, mit, program, project)2018-05-280.3.3leptonyu
yaml-union150.00Read multiple yaml-files and override fields recursively (bsd3, data, library, program)2017-11-100.0.3michelk
yaml2owl50.01Generate OWL schema from YAML syntax, and an RDFa template. (program, semantic-web)2020-01-150.0.2LeifWarner
yamlkeysdiff110.01Compares the keys from two yaml files (program, utilities)2015-07-230.5.1acatton
yamlscript1630.00Haskell bindings for YAMLScript (data, library, mit, program, text, yaml)2026-11-020.3.7.0ingy
yamlstar270.00Haskell bindings for YAMLStar (data, library, mit, program, text, yaml)2026-10-280.1.28.0ingy
yampa-glfw70.01Connects GLFW-b (GLFW 3+) with the Yampa FRP library (gpl, graphics, library, program)2014-06-080.1.0.0_deepfire
yampa204850.012048 game clone using Yampa/Gloss (game, mit, program)2015-02-050.1.0.0ksaveljev
yapb312.00Yet Another Parser Builder (YAPB) (bsd3, library, parser-builder, program)2022-12-250.2.7lazyswamp
yarn2nix100.00Convert yarn.lock files to nix expressions (distribution, library, mit, nix, program)2022-03-280.10.1Profpatsch
yavie60.01yet another visual editor (bsd3, editor, library, program)2010-07-160.0.1YoshikuniJujo
ychr100.00A Constraint Handling Rules compiler with multiple backends (bsd3, language, library, program)2026-08-130.1.0.0lortabac
yeamer180.00Yesod-based server for interactive presentation slides (gpl, graphics, keynote, library, presentation, program)2023-04-260.1.3.1leftaroundabout
yeganesh180.01small dmenu wrapper (bsd3, program, text)2012-04-212.5DanielWagner
yes-precure5-command320.01Extended yes command to reproduce phrases in Yes! Precure 5. (acme, library, mit, program)2016-10-225.5.3igrep
yesod-auth-simple50.00Traditional email/pass auth for Yesod. (bsd3, library, program, web, yesod)2022-06-031.1.0Jappie, sethlivy
yesod-autoreload80.00Auto-reload a yesod app during development (library, mit, program, unclassified)2021-05-290.0.0.0Norfair
yesod-bin5520.01The yesod helper executable. (mit, program, web, yesod)2026-06-161.6.2.4GregWeber, MichaelSnoyman, psibi, MaxGabriel, parsonsmatt
yesod-continuations30.01Continuations for Yesod (bsd3, library, program, web)2010-11-270.1MattBrown
yesod-dsl710.01DSL for generating Yesod subsite to manage an RDBMS; (bsd3, library, program, web, yesod)2016-01-030.2.1TeroLaitinen
yesod-examples (deprecated)480.01Example programs using the Yesod Web Framework. (deprecated) (bsd3, deprecated, program, web, yesod)2012-01-190.9.0.1MichaelSnoyman
yesod-fast-devel90.01Fast live-reloading for yesod applications. (bsd3, development, program)2017-05-050.1.2.0yamadapc
yesod-form-bulma90.00support Bulma form for Yesod (bsd3, library, program, web, yesod)2018-06-060.1.0.0waddlaw
yesod-pnotify390.01Yet another getMessage/setMessage using pnotify jquery plugins (bsd3, library, program, web, yesod)2016-03-091.1.3.2KatsutoshiItoh
yesod-raml-bin60.01The raml helper executable. (mit, program, web, yesod)2015-11-100.1.2junjihashimoto
yesod-vend160.01Simple CRUD classes for easy view creation for Yesod (bsd3, library, program, web, yesod)2013-07-160.3.0.0KrzysztofSkrzetnicki
yet-another-logger580.01Yet Another Logger (apache, library, logging, program, system)2023-06-230.4.2larsk, fosskers
yhseq130.00Calculation of YH sequence system (apache, library, math, program)2020-08-280.3.0.1Hexirp
yi1992.2510Yi editor (gpl, program, yi)2024-11-010.19.3CoreyOConnor, DmitryIvanov, JeanPhilippeBernardy, JeffWheeler, MarcelFourne, MateuszKowalczyk, TomMurphy, JaroReinders
yiyd90.00 (cli, gpl, library, program)2026-01-291.1.0vonfry
yj-sandbox50.00try hackage (bsd3, library, program, try)2024-11-060.1.0.0YoshikuniJujo
yjftp230.01CUI FTP client like 'ftp', 'ncftp' (library, network, program)2012-02-160.3.6.5YoshikuniJujo
yjftp-libs120.01CUI FTP client like 'ftp', 'ncftp' (library, network, program)2013-09-110.0.2YoshikuniJujo
ymonad40.00The Wayland Yutani-Monad (agpl, library, program, system)2026-04-110.1.0.0EdwardTjornhammar
youtube (deprecated)160.01Upload video to YouTube via YouTube API (bsd3, deprecated, program, web)2017-07-280.2.1.1HenningThielemann
yql50.02A YQL engine to execute Open Data Tables (bsd2, library, program, web)2014-12-120.0.0FabianBergmark
yst972.01Builds a static website from templates and data in YAML or CSV files. (gpl, program, text)2023-02-040.7.2JohnMacFarlane
yu-launch92.01The launcher for Yu. (gpl, program, web)2018-02-240.1.1.0qinka
yu-tool70.01Tool for Yu (gpl, program, web)2018-02-240.1.1.30qinka
yuuko150.02A transcendental HTML parser gently wrapping the HXT library (bsd3, library, program, text)2010-11-282010.11.28JinjingWang
yxdb-utils80.00Utilities for reading and writing Alteryx .yxdb files (database, gpl, library, program)2015-05-100.1.0.1MichaelBurge
zampolit100.01A tool for checking how much work is done on group projects. (bsd3, program, text)2011-05-090.3BrianSniffen
zenacy-html330.00A standard compliant HTML parsing library (library, mit, program, web)2024-12-272.1.2mlcfp
zeno80.01An automated proof system for Haskell programs (mit, program, theorem-provers)2011-04-280.2.0.1WilliamSonnex
zeolite-lang1530.00Zeolite is a statically-typed, general-purpose programming language. (apache, compiler, library, program)2024-01-080.24.1.0ta0kira
zephyr140.00Zephyr, tree-shaking for the PureScript language (development, library, mpl, program)2023-04-250.5.3coot, MaybeJustJames
zeromq4-clone-pattern (deprecated in favor of zeromq4-patterns)50.00Haskell implementation of the ZeroMQ clone pattern. (bsd3, deprecated, library, program, system)2018-04-280.1.0.0hverr
zeromq4-patterns160.00Haskell implementation of several ZeroMQ patterns. (bsd3, library, program, system)2018-05-010.3.1.0hverr
zeroth180.01ZeroTH - remove unnecessary TH dependencies (bsd3, language, library, program)2009-06-232009.6.23.3DavidHimmelstrup, RobinGreen
zettelkast110.00Command-line utility for working with zettelkast files (bsd3, library, program, text)2020-09-280.2.0.0MasseR
zim-to-markdown160.00Converts Zim wiki pages to Markdown and back. (bsd3, library, program, text)2026-11-090.4.0.1tralen
zip872.256Operations on zip archives (bsd3, codec, library, program)2026-06-142.2.2HerbertValerioRiedel, mrkkrp
zip-cmd30.00Simple CLI tool for the haskell zip library. (bsd3, program)2022-12-201.0.1CsabaHruska
zip-stream480.02ZIP archive streaming using conduits (bsd3, codec, conduit, library, program)2022-11-210.2.2.0DylanSimon
zip2tar60.00Convert ZIP to TAR archives (archive, bsd3, codec, program)2026-04-280.0HenningThielemann
zmcat90.01Command-line tool for ZeroMQ. (bsd3, library, network, program)2014-03-100.3LucasDiCioccio
zmqat100.01A socat-like tool for zeromq library (network, program)2015-01-030.2.0.0koral
zoom70.01A rake/thor-like task runner written in Haskell (bsd3, distribution, library, program)2011-08-050.1.0.1IanDuncan
zoom-cache1110.04A streamable, seekable, zoomable cache file format (bsd3, development, library, program)2012-12-071.2.1.6ConradParker
zoom-cache-sndfile200.01Tools for generating zoom-cache-pcm files (lgpl, program, sound)2012-11-191.1.0.1ConradParker
zot162.01Zot language (bsd3, compilers-interpreters, program)2016-03-270.0.3YoshikuniJujo
zre470.00ZRE protocol implementation (bsd3, library, networking, program)2025-03-100.1.5.2srk
zsh-battery40.01Ascii bars representing battery status (bsd3, graphics, program)2011-04-040.2MatsRauhala
ztail350.01Multi-file, colored, filtered log tailer. (bsd3, console, program, system)2026-01-281.2.0.4DylanSimon
zuramaru70.00A lisp processor, An inline-lisp, in Haskell (library, mit, program, simple)2018-01-210.1.0.0aiya000
zuul70.00A zuul client library (apache, development, library, program)2022-03-310.1.1.0TristanCacqueray
zwirn140.00a live coding language for playing with nested functions of time (gpl, language, library, program, sound)2026-09-150.2.3.1MartinGius
zxcvbn-hs230.02Password strength estimation based on zxcvbn. (library, mit, program, system)2026-01-220.3.8PeterJones, Jappie
zyre260.00Haskell zyre bindings for reliable group messaging over local area networks. (library, mit, program, web)2022-04-290.1.1.0skrio