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Open source projects and samples from Microsoft
README.md

Open Source at Microsoft

Get Involved

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 177k 35.1k

  2. TypeScript TypeScript Public

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

    TypeScript 106k 13k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 124k 7.4k

  4. terminal terminal Public

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

    C++ 100k 8.8k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.2k 4.2k

Repositories

Showing 10 of 7125 repositories
  • binskim Public

    A binary static analysis tool that provides security and correctness results for Windows Portable Executable and *nix ELF binary formats

    microsoft/binskim’s past year of commit activity
    C# 820 161 132 19 Updated Sep 17, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 126 MIT 32 3 (1 issue needs help) 4 Updated Sep 17, 2025
  • teams.net Public

    a suite of packages used to build on the Teams Platform.

    microsoft/teams.net’s past year of commit activity
    C# 20 MIT 9 54 6 Updated Sep 17, 2025
  • benchmark-qed Public

    Automated benchmarking of Retrieval-Augmented Generation (RAG) systems

    microsoft/benchmark-qed’s past year of commit activity
    Python 44 MIT 7 0 1 Updated Sep 17, 2025
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 17,899 MIT 3,457 834 322 Updated Sep 17, 2025
  • TypeAgent Public

    Sample code that explores an architecture for using language models to build a personal agent that can work with application agents.

    microsoft/TypeAgent’s past year of commit activity
    TypeScript 450 MIT 76 4 1 Updated Sep 17, 2025
  • azure-linux-image-tools Public
    microsoft/azure-linux-image-tools’s past year of commit activity
    Go 16 MIT 7 3 14 Updated Sep 17, 2025
  • MHA Public

    Message Header Analyzer Add-in For Outlook

    microsoft/MHA’s past year of commit activity
    TypeScript 333 MIT 56 20 (1 issue needs help) 0 Updated Sep 17, 2025
  • axe-sarif-converter Public

    An axe-core reporter that outputs axe scan results in SARIF format (http://sarifweb.azurewebsites.net/)

    microsoft/axe-sarif-converter’s past year of commit activity
    TypeScript 33 MIT 28 0 13 Updated Sep 17, 2025
  • hlsl-specs Public

    HLSL Specifications

    microsoft/hlsl-specs’s past year of commit activity
    TeX 202 MIT 50 172 28 Updated Sep 17, 2025
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