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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 180k 36.8k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.2k

  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 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.8k 4.4k

Repositories

Showing 10 of 7439 repositories
  • zerotrustassessment Public

    Repository for the Zero Trust Assessment project

    microsoft/zerotrustassessment’s past year of commit activity
    HTML 233 MIT 112 27 14 Updated Dec 13, 2025
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,813 555 131 14 Updated Dec 13, 2025
  • mcp Public

    Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

    microsoft/mcp’s past year of commit activity
    C# 2,297 MIT 317 230 (45 issues need help) 51 Updated Dec 13, 2025
  • semantic-kernel Public

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

    microsoft/semantic-kernel’s past year of commit activity
    C# 26,837 MIT 4,388 496 67 Updated Dec 13, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 133 MIT 31 3 (1 issue needs help) 0 Updated Dec 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# 1,343 MIT 183 64 (2 issues need help) 9 Updated Dec 13, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 179,567 MIT 36,805 5,000+ (565 issues need help) 960 Updated Dec 13, 2025
  • qdk Public

    Azure Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas

    microsoft/qdk’s past year of commit activity
    Rust 813 MIT 159 149 (1 issue needs help) 6 Updated Dec 13, 2025
  • vcpkg Public

    C++ Library Manager for Windows, Linux, and MacOS

    microsoft/vcpkg’s past year of commit activity
    CMake 26,254 MIT 7,235 1,037 282 Updated Dec 13, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,007 MIT 5,734 1,084 839 Updated Dec 13, 2025
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