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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 184k 39.1k

  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# 131k 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 7756 repositories
  • 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# 954 MIT 346 60 14 Updated Apr 10, 2026
  • integrity-vhd Public

    Tooling to deterministically convert tar files in to files systems with integrity information.

    microsoft/integrity-vhd’s past year of commit activity
    Go 6 MIT 1 3 6 Updated Apr 10, 2026
  • agent-framework Public

    A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

    microsoft/agent-framework’s past year of commit activity
    Python 9,262 MIT 1,512 593 179 Updated Apr 10, 2026
  • syntheseus Public

    Package for Retrosynthetic Planning

    microsoft/syntheseus’s past year of commit activity
    Python 192 MIT 33 6 (1 issue needs help) 1 Updated Apr 10, 2026
  • azure-devops-mcp Public

    The MCP server for Azure DevOps, bringing the power of Azure DevOps directly to your agents.

    microsoft/azure-devops-mcp’s past year of commit activity
    TypeScript 1,542 MIT 512 5 3 Updated Apr 10, 2026
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 998 MIT 291 179 25 Updated Apr 10, 2026
  • onnxruntime-genai Public

    Generative AI extensions for onnxruntime

    microsoft/onnxruntime-genai’s past year of commit activity
    C++ 1,000 MIT 279 130 33 Updated Apr 10, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    10,446 MIT 6,616 1,147 316 Updated Apr 10, 2026
  • ai-agent-runbooks Public

    Go-to hub for building and deploying production-ready AI Agent solutions

    microsoft/ai-agent-runbooks’s past year of commit activity
    5 MIT 0 0 0 Updated Apr 10, 2026
  • agentic-applications-for-unified-data-foundation-solution-accelerator Public

    This accelerator unifies enterprise data with Microsoft Fabric and applies agentic AI to enable faster, smarter decisions. With Microsoft Foundry agents and the Microsoft Agent Framework orchestration, teams can automate workflows, query data in natural language, and uncover insights that fuel agility, collaboration, and innovation.

    microsoft/agentic-applications-for-unified-data-foundation-solution-accelerator’s past year of commit activity
    TSQL 75 MIT 97 0 11 Updated Apr 10, 2026
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