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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 181k 37.8k

  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 7550 repositories
  • typespec Public
    microsoft/typespec’s past year of commit activity
    Java 5,572 MIT 336 1,017 (2 issues need help) 55 Updated Feb 6, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 181,466 MIT 37,768 5,000+ (534 issues need help) 1,077 Updated Feb 6, 2026
  • hve-core Public

    A refined collection of Hypervelocity Engineering components (instructions, prompts, agents) to start your project off right, or upgrade your existing projects to get the most out of all Copilots

    microsoft/hve-core’s past year of commit activity
    PowerShell 91 MIT 41 45 (12 issues need help) 6 Updated Feb 6, 2026
  • roosterjs Public

    roosterjs is a framework-independent javascript rich text editor.

    microsoft/roosterjs’s past year of commit activity
    TypeScript 1,289 185 56 6 Updated Feb 6, 2026
  • compose-language-service Public

    Language service for Docker Compose documents

    microsoft/compose-language-service’s past year of commit activity
    TypeScript 102 MIT 11 13 (2 issues need help) 0 Updated Feb 6, 2026
  • vscode-isort Public

    Import sorting for python using the isort library.

    microsoft/vscode-isort’s past year of commit activity
    Python 102 MIT 25 17 (1 issue needs help) 28 Updated Feb 6, 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 1,683 MIT 376 145 (10 issues need help) 83 Updated Feb 6, 2026
  • Agents-for-python Public

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

    microsoft/Agents-for-python’s past year of commit activity
    Python 143 MIT 56 50 5 Updated Feb 6, 2026
  • superuserimpact Public

    Work and productivity impact of superusers

    microsoft/superuserimpact’s past year of commit activity
    1 MIT 0 1 1 Updated Feb 6, 2026
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 620 MIT 122 216 19 Updated Feb 6, 2026
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