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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 180k 37k

  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# 127k 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# 26.9k 4.4k

Repositories

Showing 10 of 7445 repositories
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps’s past year of commit activity
    AL 502 MIT 300 70 60 Updated Dec 18, 2025
  • Oryx Public

    Build your repo automatically.

    microsoft/Oryx’s past year of commit activity
    C# 846 191 95 114 Updated Dec 18, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 133 MIT 32 3 (1 issue needs help) 0 Updated Dec 18, 2025
  • dstoolkit-devcontainers Public template

    A machine learning project template that makes it easy to work with multiple Docker based VSCode Dev Containers. Easily transition projects to the cloud and production with automated code quality checks, pytest configuration, CI pipeline templates & AML cloud example

    microsoft/dstoolkit-devcontainers’s past year of commit activity
    Python 46 MIT 12 1 2 Updated Dec 18, 2025
  • beachball Public

    The Sunniest Semantic Version Bumper

    microsoft/beachball’s past year of commit activity
    TypeScript 805 MIT 91 93 (2 issues need help) 11 Updated Dec 18, 2025
  • olive-recipes Public
    microsoft/olive-recipes’s past year of commit activity
    Python 27 MIT 26 1 21 Updated Dec 18, 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# 2,320 MIT 322 226 (36 issues need help) 52 Updated Dec 18, 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 28 MIT 11 5 7 Updated Dec 18, 2025
  • 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# 126,570 MIT 7,539 5,000+ (221 issues need help) 95 Updated Dec 18, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,020 MIT 5,762 1,090 868 Updated Dec 18, 2025
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