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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 184k 39.1k

  2. TypeScript TypeScript Public

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

    TypeScript 109k 13.3k

  3. PowerToys PowerToys Public

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

    C# 132k 7.9k

  4. terminal terminal Public

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

    C++ 103k 9.2k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.7k 4.5k

Repositories

Showing 10 of 7755 repositories
  • WinUI-Gallery Public

    This app demonstrates the controls available in WinUI and the Fluent Design System.

    microsoft/WinUI-Gallery’s past year of commit activity
    C# 3,441 MIT 720 39 (4 issues need help) 5 Updated Apr 11, 2026
  • mcp-for-beginners Public

    This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable, and secure AI workflows from session setup to service orchestration.

    microsoft/mcp-for-beginners’s past year of commit activity
    Jupyter Notebook 15,848 MIT 5,154 0 2 Updated Apr 11, 2026
  • eval-guide Public

    A plugin for AI agent evaluation. Plan evals, generate test cases, interpret results for Copilot Studio agents. Grounded in Microsoft's Eval Scenario Library & Triage Playbook.

    microsoft/eval-guide’s past year of commit activity
    HTML 2 MIT 1 0 0 Updated Apr 11, 2026
  • PowerPlatform-DataverseClient-Python Public
    microsoft/PowerPlatform-DataverseClient-Python’s past year of commit activity
    Python 42 MIT 14 7 15 Updated Apr 11, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    10,454 MIT 6,642 1,149 330 Updated Apr 11, 2026
  • mscclpp Public

    MSCCL++: A GPU-driven communication stack for scalable AI applications

    microsoft/mscclpp’s past year of commit activity
    C++ 499 MIT 92 9 20 Updated Apr 11, 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# 11,789 MIT 650 24 (13 issues need help) 27 Updated Apr 11, 2026
  • m365-renovate-config Public

    Shared Renovate configuration for M365 projects

    microsoft/m365-renovate-config’s past year of commit activity
    JavaScript 15 MIT 5 1 6 Updated Apr 11, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 183,718 MIT 39,127 5,000+ (505 issues need help) 1,664 Updated Apr 11, 2026
  • onnxruntime-genai Public

    Generative AI extensions for onnxruntime

    microsoft/onnxruntime-genai’s past year of commit activity
    C++ 1,003 MIT 279 131 32 Updated Apr 11, 2026
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