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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 182k 37.9k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys PowerToys Public

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

    C# 129k 7.7k

  4. terminal terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.2k 4.5k

Repositories

Showing 10 of 7559 repositories
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 985 MIT 292 197 17 Updated Feb 11, 2026
  • security-devops-action Public

    Microsoft Security DevOps for GitHub Actions.

    microsoft/security-devops-action’s past year of commit activity
    JavaScript 142 MIT 58 23 1 Updated Feb 11, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,441 MIT 1,637 0 171 Updated Feb 11, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 181,595 MIT 37,854 5,000+ (531 issues need help) 1,120 Updated Feb 11, 2026
  • react-native-windows Public

    A framework for building native Windows apps with React.

    microsoft/react-native-windows’s past year of commit activity
    C++ 17,182 1,194 699 (12 issues need help) 53 Updated Feb 11, 2026
  • vscode-java-pack Public

    VS Code extensions for Java developers.

    microsoft/vscode-java-pack’s past year of commit activity
    TypeScript 337 158 252 (1 issue needs help) 6 Updated Feb 11, 2026
  • DiskANN Public

    Graph-structured Indices for Scalable, Fast, Fresh and Filtered Approximate Nearest Neighbor Search

    microsoft/DiskANN’s past year of commit activity
    Rust 1,692 MIT 378 117 (3 issues need help) 88 Updated Feb 11, 2026
  • qdk-chemistry Public

    A high-performance toolkit for quantum and classical chemistry calculations.

    microsoft/qdk-chemistry’s past year of commit activity
    C++ 36 MIT 1 21 7 Updated Feb 11, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL’s past year of commit activity
    C++ 31,072 MIT 1,612 938 21 Updated Feb 11, 2026
  • go-images Public

    Docker image packaging and publishing for the Microsoft build of Go

    microsoft/go-images’s past year of commit activity
    PowerShell 20 BSD-3-Clause 8 0 2 Updated Feb 11, 2026
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