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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 183k 38.4k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.3k

  3. PowerToys PowerToys Public

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

    C# 130k 7.8k

  4. terminal terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.4k 4.5k

Repositories

Showing 10 of 7645 repositories
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 182,541 MIT 38,396 5,000+ (525 issues need help) 1,231 Updated Mar 10, 2026
  • lisa Public

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

    microsoft/lisa’s past year of commit activity
    Python 323 MIT 227 36 (3 issues need help) 31 Updated Mar 10, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,579 MIT 1,706 0 234 Updated Mar 10, 2026
  • vscode-java-test Public

    Run and debug Java test cases in Visual Studio Code.

    microsoft/vscode-java-test’s past year of commit activity
    Java 326 162 113 (13 issues need help) 2 Updated Mar 10, 2026
  • injectorppforrust Public

    Injectorpp is a powerful tool designed to facilitate the writing of unit tests without the need to introduce traits solely for testing purposes. It streamlines the testing process by providing a seamless and efficient way to abstract dependencies, ensuring that your code remains clean and maintainable.

    microsoft/injectorppforrust’s past year of commit activity
    Rust 391 MIT 15 21 (2 issues need help) 1 Updated Mar 10, 2026
  • litebox Public

    A security-focused library OS supporting kernel- and user-mode execution

    microsoft/litebox’s past year of commit activity
    Rust 2,446 MIT 108 72 17 Updated Mar 10, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,306 MIT 6,299 1,134 352 Updated Mar 10, 2026
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 19,486 MIT 3,749 848 450 Updated Mar 10, 2026
  • CAIRA Public

    Composable AI Reference Architectures (CAIRA)

    microsoft/CAIRA’s past year of commit activity
    HCL 196 MIT 46 4 3 Updated Mar 10, 2026
  • PowerToys Public

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

    microsoft/PowerToys’s past year of commit activity
    C# 130,359 MIT 7,760 5,000+ (202 issues need help) 109 Updated Mar 10, 2026
View all repositories

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