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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 Public

    Visual Studio Code

    TypeScript 169k 31.2k

  2. TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys Public

    Windows system utilities to maximize productivity

    C# 117k 6.9k

  4. terminal Public

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

    C++ 97.5k 8.5k

  5. semantic-kernel Public

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

    C# 23.7k 3.6k

Repositories

Showing 10 of 6723 repositories
  • go-crypto-darwin Public

    macOS Crypto bindings for Go

    Go 4 MIT 0 5 4 Updated Mar 27, 2025
  • gnls Public

    GN language server and extensions

    TypeScript 29 MIT 6 6 1 Updated Mar 27, 2025
  • vscode Public

    Visual Studio Code

    TypeScript 169,208 MIT 31,212 5,000+ (400 issues need help) 518 Updated Mar 27, 2025
  • PowerApps-TestEngine Public
    C# 125 MIT 36 156 21 Updated Mar 27, 2025
  • typespec Public
    Java 4,870 MIT 261 821 (2 issues need help) 50 Updated Mar 27, 2025
  • PowerToys Public

    Windows system utilities to maximize productivity

    C# 116,615 MIT 6,884 5,000+ (177 issues need help) 77 Updated Mar 27, 2025
  • fluentui Public

    Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

    TypeScript 19,005 2,778 490 (7 issues need help) 192 Updated Mar 27, 2025
  • PSRule-vscode Public

    A Visual Studio Code extension for PSRule.

    TypeScript 50 MIT 20 0 5 Updated Mar 27, 2025
  • RD-Agent Public

    Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through our open source R&D automation tool RD-Agent, which lets AI drive data-driven AI.

    Python 3,849 MIT 321 16 17 Updated Mar 27, 2025
  • onnxruntime Public

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

    C++ 16,098 MIT 3,114 2,606 561 Updated Mar 27, 2025
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