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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 180k 36.8k

  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# 126k 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# 26.8k 4.4k

Repositories

Showing 10 of 7439 repositories
  • ado-npm-auth Public

    This package can automatically use the azureauth CLI to fetch tokens and update a user's .npmrc file for authenticating to Azure DevOps npm feeds.

    microsoft/ado-npm-auth’s past year of commit activity
    TypeScript 18 MIT 14 11 11 Updated Dec 12, 2025
  • vssdktestfx Public

    A testing framework for Visual Studio extensions

    microsoft/vssdktestfx’s past year of commit activity
    C# 18 MIT 9 2 10 Updated Dec 12, 2025
  • rushstack Public

    Monorepo for tools developed by the Rush Stack community

    microsoft/rushstack’s past year of commit activity
    TypeScript 6,379 658 851 (128 issues need help) 132 Updated Dec 12, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 179,552 MIT 36,788 5,000+ (567 issues need help) 960 Updated Dec 12, 2025
  • FluidFramework Public

    Library for building distributed, real-time collaborative web applications

    microsoft/FluidFramework’s past year of commit activity
    TypeScript 4,895 MIT 560 21 87 Updated Dec 12, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,004 MIT 5,730 1,091 888 Updated Dec 12, 2025
  • opensource.microsoft.com Public

    This is the source code to the mostly-static Microsoft Open Source site featuring projects, program information, and "get involved" pages. This site is published at opensource.microsoft.com, managed by the Microsoft Open Source Programs Office (OSPO).

    microsoft/opensource.microsoft.com’s past year of commit activity
    TypeScript 1,022 MIT 503 0 0 Updated Dec 12, 2025
  • SPTAG Public

    A distributed approximate nearest neighborhood search (ANN) library which provides a high quality vector index build, search and distributed online serving toolkits for large scale vector search scenario.

    microsoft/SPTAG’s past year of commit activity
    C++ 4,957 MIT 604 118 (1 issue needs help) 24 Updated Dec 12, 2025
  • pxt-arcade Public

    Arcade game editor based on Microsoft MakeCode

    microsoft/pxt-arcade’s past year of commit activity
    TypeScript 531 MIT 239 515 (23 issues need help) 46 Updated Dec 12, 2025
  • aitour26-WRK541-real-world-code-migration-with-github-copilot-agent-mode Public
    microsoft/aitour26-WRK541-real-world-code-migration-with-github-copilot-agent-mode’s past year of commit activity
    C# 231 MIT 31 0 0 Updated Dec 12, 2025
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