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Open source projects and samples from Microsoft
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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 167k 30.5k

  2. TypeScript TypeScript Public

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

    TypeScript 102k 12.7k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 115k 6.8k

  4. terminal terminal Public

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

    C++ 97k 8.5k

  5. semantic-kernel semantic-kernel Public

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

    C# 23.1k 3.5k

Repositories

Showing 10 of 6659 repositories
  • 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# 839 MIT 266 191 25 Updated Feb 15, 2025
  • aitour-customizing-microsoft-copilot Public
    microsoft/aitour-customizing-microsoft-copilot’s past year of commit activity
    TypeScript 6 MIT 9 1 6 Updated Feb 15, 2025
  • lisa Public

    LISA is developed and maintained by Microsoft, to empower Linux validation.

    microsoft/lisa’s past year of commit activity
    Python 219 MIT 181 34 (3 issues need help) 25 Updated Feb 15, 2025
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 15,594 MIT 3,048 2,518 544 Updated Feb 15, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 167,347 MIT 30,530 5,000+ (386 issues need help) 505 Updated Feb 15, 2025
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,380 MIT 567 145 798 Updated Feb 15, 2025
  • powerbi-visuals-timeline Public

    Timeline slicer is a graphical date range selector used as a filtering component in the report canvas

    microsoft/powerbi-visuals-timeline’s past year of commit activity
    TypeScript 43 52 10 1 Updated Feb 15, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 112 MIT 28 3 (1 issue needs help) 1 Updated Feb 15, 2025
  • FluidFramework Public

    Library for building distributed, real-time collaborative web applications

    microsoft/FluidFramework’s past year of commit activity
    TypeScript 4,780 MIT 537 22 88 Updated Feb 15, 2025
  • beachball Public

    The Sunniest Semantic Version Bumper

    microsoft/beachball’s past year of commit activity
    TypeScript 770 MIT 87 94 (1 issue needs help) 20 Updated Feb 15, 2025
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