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Open source projects and samples from Microsoft

Open Source at Microsoft

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Right now, open communities are building amazing software together, and there are excellent "good first issue" opportunities, if you're looking to get involved.

Visit opensource.microsoft.com to learn more!


Microsoft projects adopt the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ.

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  1. vscode vscode Public

    Visual Studio Code

    TypeScript 194k 44.6k

  2. TypeScript TypeScript Public

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

    Go 111k 16k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C 139k 8.6k

  4. terminal terminal Public

    The new Windows Terminal and the original Windows console host, all in the same place!

    C++ 105k 9.7k

  5. semantic-kernel semantic-kernel Public

    Integrate cutting-edge LLM technology quickly and easily into your apps

    C# 28.6k 4.8k

Repositories

Showing 10 of 8350 repositories
  • onnxruntime Public

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    microsoft/onnxruntime's past year of commit activity
    C++ 22,037 MIT 4,285 900 857 Updated Oct 8, 2026
  • BC-Bench Public

    Inspired by SWE-Bench, for Business Central (AL) ecosystem.

    microsoft/BC-Bench's past year of commit activity
    Jupyter Notebook 57 MIT 31 1 40 Updated Oct 8, 2026
  • mssql-rs Public

    Repository for the TDS implementation in Rust.

    microsoft/mssql-rs's past year of commit activity
    Rust 57 MIT 15 39 28 Updated Oct 8, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps's past year of commit activity
    AL 696 MIT 472 260 477 Updated Oct 8, 2026
  • go Public

    The Microsoft build of Go is a modified version of Go that can build FIPS compliant applications that satisfy internal Microsoft policies.

    microsoft/go's past year of commit activity
    Go 433 BSD-3-Clause 45 126 2 Updated Oct 8, 2026
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx's past year of commit activity
    C# 1,047 MIT 314 52 18 Updated Oct 8, 2026
  • edge-ai Public

    Production-ready Infrastructure as Code, applications, pluggable components, and PlatformOps toolchains that empower organizations to achieve more with cloud and edge AI-powered solutions. Built by friendly geeks, for every team that needs edge solutions to achieve real production results.

    microsoft/edge-ai's past year of commit activity
    HCL 106 MIT 50 87 (1 issue needs help) 20 Updated Oct 8, 2026
  • Qcodes Public

    Modular data acquisition framework

    microsoft/Qcodes's past year of commit activity
    Python 463 MIT 362 193 64 Updated Oct 8, 2026
  • PR-Metrics Public

    A GitHub Action & Azure Pipelines task for augmenting pull request titles to let reviewers quickly determine PR size and test coverage.

    microsoft/PR-Metrics's past year of commit activity
    TypeScript 90 MIT 17 1 0 Updated Oct 8, 2026
  • powerplatform-build-tools Public

    Power Platform Build Tools automate common build and deployment tasks related to Power Platform. This includes synchronization of solution metadata (a.k.a. solutions) between development environments and source control, generating build artifacts, deploying to downstream environments, provisioning/de-provisioning of environments, and the ability…

    microsoft/powerplatform-build-tools's past year of commit activity
    TypeScript 307 MIT 71 192 38 Updated Oct 8, 2026