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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 176k 34.4k

  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# 122k 7.3k

  4. terminal terminal Public

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

    C++ 99.2k 8.7k

  5. semantic-kernel semantic-kernel Public

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

    C# 25.8k 4.1k

Repositories

Showing 10 of 7010 repositories
  • profile-explorer Public

    CPU profiling trace viewer

    microsoft/profile-explorer’s past year of commit activity
    C# 224 MIT 18 8 0 Updated Aug 16, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 126 MIT 29 3 (1 issue needs help) 0 Updated Aug 16, 2025
  • msquic Public

    Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.

    microsoft/msquic’s past year of commit activity
    C 4,436 MIT 592 208 (18 issues need help) 63 Updated Aug 16, 2025
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    microsoft/typescript-go’s past year of commit activity
    Go 21,727 Apache-2.0 685 106 39 Updated Aug 16, 2025
  • onnxscript Public

    ONNX Script enables developers to naturally author ONNX functions and models using a subset of Python.

    microsoft/onnxscript’s past year of commit activity
    Python 370 MIT 75 226 (1 issue needs help) 44 Updated Aug 16, 2025
  • vscode-pull-request-github Public

    GitHub Pull Requests for Visual Studio Code

    microsoft/vscode-pull-request-github’s past year of commit activity
    TypeScript 2,431 MIT 642 345 (3 issues need help) 24 Updated Aug 16, 2025
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 602 MIT 116 208 20 Updated Aug 16, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,616 MIT 5,316 1,003 277 Updated Aug 16, 2025
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,736 520 360 17 Updated Aug 16, 2025
  • mu_feature_debugger Public

    Project Mu based UEFI SW/FW debugger

    microsoft/mu_feature_debugger’s past year of commit activity
    C 19 5 5 0 Updated Aug 16, 2025
View all repositories

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