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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 193k 43.8k

  2. TypeScript TypeScript Public

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

    Go 111k 15.2k

  3. PowerToys PowerToys Public

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

    C 139k 8.6k

  4. terminal terminal Public

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

    C++ 105k 9.6k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.6k 4.8k

Repositories

Showing 10 of 8313 repositories
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL's past year of commit activity
    C++ 33,790 MIT 1,836 936 59 Updated Sep 28, 2026
  • o365-moodle Public

    Office 365 and Azure Active Directory plugins for Moodle

    microsoft/o365-moodle's past year of commit activity
    PHP 212 GPL-3.0 153 73 199 Updated Sep 28, 2026
  • litebox Public

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

    microsoft/litebox's past year of commit activity
    Rust 2,697 MIT 145 128 33 Updated Sep 28, 2026
  • pg_durable Public

    PostgreSQL in-database durable execution

    microsoft/pg_durable's past year of commit activity
    Rust 2,825 80 10 7 Updated Sep 28, 2026
  • mxc Public

    Policy-driven, layered isolation and containment

    microsoft/mxc's past year of commit activity
    Rust 1,378 MIT 84 43 18 Updated Sep 28, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 193,229 MIT 43,777 5,000+ (471 issues need help) 2,753 Updated Sep 28, 2026
  • insidethegamehackathon Public
    microsoft/insidethegamehackathon's past year of commit activity
    0 MIT 0 0 0 Updated Sep 28, 2026
  • fluentui Public

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

    microsoft/fluentui's past year of commit activity
    TypeScript 20,298 2,939 458 (11 issues need help) 348 Updated Sep 28, 2026
  • vscode-eslint Public

    VSCode extension to integrate eslint into VSCode

    microsoft/vscode-eslint's past year of commit activity
    TypeScript 1,959 MIT 386 71 (25 issues need help) 13 Updated Sep 28, 2026
  • 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# 3,720 MIT 631 215 (13 issues need help) 90 Updated Sep 28, 2026
View all repositories

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