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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 195k 43.8k

  2. TypeScript TypeScript Public

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

    Go 112k 14.7k

  3. PowerToys PowerToys Public

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

    C 141k 8.7k

  4. terminal terminal Public

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

    C++ 105k 9.7k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.7k 4.9k

Repositories

Showing 10 of 8443 repositories
  • 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++ 5,022 MIT 625 119 (1 issue needs help) 23 Updated Nov 10, 2026
  • intelligent-terminal Public

    A fork of Windows Terminal with native agent integration, right in your command line.

    microsoft/intelligent-terminal's past year of commit activity
    C++ 2,198 MIT 174 132 72 Updated Nov 10, 2026
  • PyRIT Public

    Open-source AI red teaming toolkit from Microsoft. Test generative AI systems with automated scans, adaptive multi-turn attacks, and a web UI.

    microsoft/PyRIT's past year of commit activity
    Python 4,777 MIT 1,039 134 (58 issues need help) 126 Updated Nov 10, 2026
  • fhir-server Public

    A service that implements the FHIR standard

    microsoft/fhir-server's past year of commit activity
    TSQL 1,392 MIT 598 97 (1 issue needs help) 46 Updated Nov 10, 2026
  • aspire Public

    Aspire is the tool for code-first, extensible, observable dev and deploy.

    microsoft/aspire's past year of commit activity
    C# 6,412 MIT 1,039 2,144 (2 issues need help) 377 Updated Nov 10, 2026
  • sre-agent Public

    Azure SRE Agent is an AI-powered reliability assistant that helps teams diagnose and resolve production issues, reduce operational toil, and lower mean time to resolution

    microsoft/sre-agent's past year of commit activity
    PowerShell 187 MIT 191 71 40 Updated Nov 10, 2026
  • mxc Public

    Policy-driven, layered isolation and containment

    microsoft/mxc's past year of commit activity
    Rust 3,119 MIT 175 128 22 Updated Nov 10, 2026
  • teams.net Public

    A suite of packages used to build on the Teams Platform.

    microsoft/teams.net's past year of commit activity
    C# 47 MIT 22 13 6 Updated Nov 10, 2026
  • teams.py Public

    A suite of packages used to build on the Teams Platform.

    microsoft/teams.py's past year of commit activity
    Python 68 MIT 31 7 7 Updated Nov 10, 2026
  • BotFramework-WebChat Public

    A highly-customizable web-based client for Azure Bot Services.

    microsoft/BotFramework-WebChat's past year of commit activity
    HTML 1,786 MIT 1,599 365 20 Updated Nov 10, 2026
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