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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 178k 36.1k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.1k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 126k 7.5k

  4. terminal terminal Public

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

    C++ 101k 8.9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.7k 4.3k

Repositories

Showing 10 of 7349 repositories
  • PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    microsoft/PowerToys’s past year of commit activity
    C# 125,662 MIT 7,472 5,000+ (220 issues need help) 89 Updated Nov 13, 2025
  • minions Public
    microsoft/minions’s past year of commit activity
    Python 9 MIT 2 6 2 Updated Nov 13, 2025
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 613 MIT 120 212 18 Updated Nov 13, 2025
  • agent-lightning Public

    The absolute trainer to light up AI agents.

    microsoft/agent-lightning’s past year of commit activity
    Python 8,097 MIT 632 47 24 Updated Nov 13, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 178,497 MIT 36,121 5,000+ (476 issues need help) 855 Updated Nov 13, 2025
  • ai-dev-gallery Public

    An open-source project for Windows developers to learn how to add AI with local models and APIs to Windows apps.

    microsoft/ai-dev-gallery’s past year of commit activity
    C# 1,269 MIT 171 60 (2 issues need help) 8 Updated Nov 13, 2025
  • fluentui-charting-contrib Public

    Contributor tools and guides for fluentui charting library

    microsoft/fluentui-charting-contrib’s past year of commit activity
    TypeScript 20 MIT 13 2 17 Updated Nov 13, 2025
  • oxidizer Public

    Oxidizer is a platform for Rust service development which bridges the gaps in the crate ecosystem to deliver a turn-key solution to enable the efficient creation of high-scale high-availability and high-performance services in Rust.

    microsoft/oxidizer’s past year of commit activity
    Rust 13 MIT 5 1 2 Updated Nov 13, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,890 MIT 5,606 1,033 822 Updated Nov 13, 2025
  • CsWin32 Public

    A source generator to add a user-defined set of Win32 P/Invoke methods and supporting types to a C# project.

    microsoft/CsWin32’s past year of commit activity
    C# 2,407 MIT 115 106 (2 issues need help) 13 Updated Nov 13, 2025
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