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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 193k 44k

  2. TypeScript TypeScript Public

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

    Go 111k 15.4k

  3. PowerToys PowerToys Public

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

    C 139k 8.6k

  4. terminal terminal Public

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

    C++ 105k 9.6k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.6k 4.8k

Repositories

Showing 10 of 8337 repositories
  • 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# 12,034 MIT 709 27 (11 issues need help) 31 Updated Sep 30, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs's past year of commit activity
    11,123 MIT 10,049 1,360 2,759 Updated Sep 30, 2026
  • discovery Public

    Microsoft Discovery community repository

    microsoft/discovery's past year of commit activity
    Python 254 MIT 73 0 24 Updated Sep 30, 2026
  • DiskANN Public

    A vector indexing library to bring fast, fresh and filtered search to your database

    microsoft/DiskANN's past year of commit activity
    Rust 1,938 MIT 456 87 (1 issue needs help) 105 Updated Sep 30, 2026
  • foundry-local Public
    microsoft/foundry-local's past year of commit activity
    C++ 2,572 376 85 28 Updated Sep 30, 2026
  • onnxruntime-genai Public

    Generative AI extensions for onnxruntime

    microsoft/onnxruntime-genai's past year of commit activity
    C++ 1,128 MIT 362 152 93 Updated Sep 30, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 193,306 MIT 43,965 5,000+ (470 issues need help) 2,744 Updated Sep 30, 2026
  • opentelemetry-distro-dotnet Public
    microsoft/opentelemetry-distro-dotnet's past year of commit activity
    C# 4 9 1 3 Updated Sep 30, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps's past year of commit activity
    AL 688 MIT 467 246 476 Updated Sep 30, 2026
  • mcp Public

    Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

    microsoft/mcp's past year of commit activity
    C# 3,724 MIT 631 204 (13 issues need help) 91 Updated Sep 30, 2026
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