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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 Public

    Visual Studio Code

    TypeScript 182k 38.2k

  2. TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys Public

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

    C# 130k 7.7k

  4. terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel Public

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

    C# 27.3k 4.5k

Repositories

Showing 10 of 7616 repositories
  • mssql-django Public

    The Microsoft Django backend for SQL Server provides a connectivity layer for Django on SQL Server or Azure SQL DB.

    Python 390 134 70 13 Updated Mar 3, 2026
  • content-generation-solution-accelerator Public

    Accelerate marketing content creation with an AI-powered multi-agent system using Microsoft Foundry.

    Python 201 MIT 169 2 10 Updated Mar 3, 2026
  • rnx-kit Public

    Modern, scalable tools. Exceptional developer experience.

    TypeScript 1,706 MIT 116 45 (5 issues need help) 6 Updated Mar 3, 2026
  • vsts-team-calendar Public

    Team Calendar Extension for Visual Studio Team Services

    TypeScript 120 MIT 84 92 18 Updated Mar 3, 2026
  • vscode Public

    Visual Studio Code

    TypeScript 182,213 MIT 38,245 5,000+ (525 issues need help) 1,209 Updated Mar 3, 2026
  • vstest Public

    Visual Studio Test Platform is the runner and engine that powers test explorer and vstest.console.

    C# 952 MIT 345 45 6 Updated Mar 3, 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.

    C# 990 MIT 291 195 29 Updated Mar 3, 2026
  • onnxruntime Public

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

    C++ 19,430 MIT 3,737 851 422 Updated Mar 3, 2026
  • power-platform-skills Public

    A plugin marketplace for Claude Code/GitHub Copilot that provides Power Platform development plugins, including reusable skills, agents, and commands for building and deploying solutions.

    TypeScript 29 MIT 6 0 1 Updated Mar 3, 2026
  • mcp Public

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

    C# 2,682 MIT 398 241 (15 issues need help) 75 Updated Mar 3, 2026
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