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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 183k 38.5k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.3k

  3. PowerToys PowerToys Public

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

    C# 130k 7.8k

  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# 27.4k 4.5k

Repositories

Showing 10 of 7654 repositories
  • Microsoft-Fabric-tools-workload Public

    A Fabric Workload that adds different tools as items.

    microsoft/Microsoft-Fabric-tools-workload’s past year of commit activity
    TypeScript 31 17 0 1 Updated Mar 12, 2026
  • PowerToys Public

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

    microsoft/PowerToys’s past year of commit activity
    C# 130,413 MIT 7,772 5,000+ (201 issues need help) 113 Updated Mar 12, 2026
  • service-fabric-dotnet Public

    Reliable Services and Reliable Actors are Service Fabric application frameworks for building highly-scalable distributed cloud applications.

    microsoft/service-fabric-dotnet’s past year of commit activity
    C# 274 113 40 5 Updated Mar 12, 2026
  • vscode-mermAId Public

    Exploration into Copilot Chat-powered Diagram Generation

    microsoft/vscode-mermAId’s past year of commit activity
    TypeScript 168 MIT 19 18 (1 issue needs help) 3 Updated Mar 12, 2026
  • onnxruntime Public

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    microsoft/onnxruntime’s past year of commit activity
    C++ 19,518 MIT 3,753 845 457 Updated Mar 12, 2026
  • azure-tools-for-java Public

    Azure tools for Java, including Azure Toolkits for Eclipse, IntelliJ and related projects.

    microsoft/azure-tools-for-java’s past year of commit activity
    Java 256 178 494 10 Updated Mar 12, 2026
  • presidio Public

    An open-source framework for detecting, redacting, masking, and anonymizing sensitive data (PII) across text, images, and structured data. Supports NLP, pattern matching, and customizable pipelines.

    microsoft/presidio’s past year of commit activity
    Python 7,188 MIT 960 55 (5 issues need help) 14 Updated Mar 12, 2026
  • semantic-kernel Public

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

    microsoft/semantic-kernel’s past year of commit activity
    C# 27,434 MIT 4,497 408 107 Updated Mar 12, 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# 953 MIT 346 60 9 Updated Mar 12, 2026
  • apm Public

    Agent Package Manager

    microsoft/apm’s past year of commit activity
    Python 443 MIT 33 22 12 Updated Mar 12, 2026
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