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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 181k 37.3k

  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# 128k 7.6k

  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# 27k 4.4k

Repositories

Showing 10 of 7477 repositories
  • msticpy Public

    Microsoft Threat Intelligence Security Tools

    microsoft/msticpy’s past year of commit activity
    Python 1,931 340 9 (1 issue needs help) 1 Updated Jan 13, 2026
  • vstest Public

    Visual Studio Test Platform is the runner and engine that powers test explorer and vstest.console.

    microsoft/vstest’s past year of commit activity
    C# 945 MIT 341 37 12 Updated Jan 13, 2026
  • durabletask-dotnet Public

    Out-of-process .NET SDK for the Durable Task Framework

    microsoft/durabletask-dotnet’s past year of commit activity
    C# 174 MIT 53 28 30 Updated Jan 13, 2026
  • vscode-react-native Public

    VSCode extension for React Native - supports debugging and editor integration

    microsoft/vscode-react-native’s past year of commit activity
    TypeScript 2,717 282 6 1 Updated Jan 13, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 180,585 MIT 37,343 5,000+ (546 issues need help) 962 Updated Jan 13, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,265 MIT 1,563 0 121 Updated Jan 13, 2026
  • garnet Public

    Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with existing Redis clients.

    microsoft/garnet’s past year of commit activity
    C# 11,659 MIT 630 25 (13 issues need help) 17 Updated Jan 13, 2026
  • PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    microsoft/PowerToys’s past year of commit activity
    C# 127,865 MIT 7,591 5,000+ (221 issues need help) 78 Updated Jan 13, 2026
  • Olive Public

    Olive: Simplify ML Model Finetuning, Conversion, Quantization, and Optimization for CPUs, GPUs and NPUs.

    microsoft/Olive’s past year of commit activity
    Python 2,226 MIT 267 19 5 Updated Jan 13, 2026
  • typeagent-py Public

    Structured RAG: ingest, index, query

    microsoft/typeagent-py’s past year of commit activity
    Python 535 MIT 41 6 4 Updated Jan 13, 2026
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