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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 179k 36.4k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.1k

  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 8.9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.7k 4.4k

Repositories

Showing 10 of 7412 repositories
  • node-pty Public

    Fork pseudoterminals in Node.JS

    microsoft/node-pty’s past year of commit activity
    TypeScript 1,700 283 35 (11 issues need help) 8 Updated Nov 26, 2025
  • Agents-for-net Public

    This repository is for active development of the Microsoft 365 Agent SDK components for .NET

    microsoft/Agents-for-net’s past year of commit activity
    C# 134 MIT 65 26 8 Updated Nov 26, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,926 MIT 5,646 1,040 388 Updated Nov 26, 2025
  • FluidFramework Public

    Library for building distributed, real-time collaborative web applications

    microsoft/FluidFramework’s past year of commit activity
    TypeScript 4,890 MIT 558 22 80 Updated Nov 26, 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 4,530 MIT 617 215 (22 issues need help) 71 Updated Nov 26, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 178,971 MIT 36,427 5,000+ (479 issues need help) 873 Updated Nov 26, 2025
  • secureboot_objects Public

    Secure boot objects recommended by Microsoft.

    microsoft/secureboot_objects’s past year of commit activity
    Python 126 46 5 4 Updated Nov 26, 2025
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 616 MIT 120 214 16 Updated Nov 26, 2025
  • win32metadata Public

    Tooling to generate metadata for Win32 APIs in the Windows SDK.

    microsoft/win32metadata’s past year of commit activity
    C++ 1,438 138 120 (2 issues need help) 13 Updated Nov 26, 2025
  • vscode-typescript-next Public

    Enables typescript@next as VS Code's built-in TypeScript version

    microsoft/vscode-typescript-next’s past year of commit activity
    JavaScript 279 MIT 47 8 1 Updated Nov 26, 2025
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