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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 182k 38.3k

  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 7.7k

  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 7626 repositories
  • dragon-copilot-extension-samples Public
    microsoft/dragon-copilot-extension-samples’s past year of commit activity
    TypeScript 10 MIT 8 1 6 Updated Mar 4, 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# 11,762 MIT 645 20 (12 issues need help) 22 Updated Mar 4, 2026
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 19,442 MIT 3,741 852 438 Updated Mar 4, 2026
  • CCF-Ledger-Explorer Public

    CCF Ledger Explorer: Upload and analyze ledger files with ease.

    microsoft/CCF-Ledger-Explorer’s past year of commit activity
    TypeScript 1 Apache-2.0 0 0 2 Updated Mar 4, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 182,292 MIT 38,275 5,000+ (525 issues need help) 1,213 Updated Mar 4, 2026
  • GitHub-Copilot-for-Azure Public

    GitHub Copilot for Azure

    microsoft/GitHub-Copilot-for-Azure’s past year of commit activity
    TypeScript 137 88 65 18 Updated Mar 4, 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# 29 MIT 15 31 31 Updated Mar 4, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,553 MIT 1,696 0 198 Updated Mar 4, 2026
  • Agent365-dotnet Public
    microsoft/Agent365-dotnet’s past year of commit activity
    C# 14 MIT 7 0 1 Updated Mar 4, 2026
  • teams.ts Public

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

    microsoft/teams.ts’s past year of commit activity
    TypeScript 36 MIT 25 72 (1 issue needs help) 12 Updated Mar 4, 2026
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