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Open source projects and samples from Microsoft

Open Source at Microsoft

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Right now, open communities are building amazing software together, and there are excellent "good first issue" opportunities, if you're looking to get involved.

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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 175k 33.7k

  2. TypeScript Public

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

    TypeScript 105k 12.9k

  3. PowerToys Public

    Windows system utilities to maximize productivity

    C# 121k 7.2k

  4. terminal Public

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

    C++ 98.9k 8.7k

  5. semantic-kernel Public

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

    C# 25.4k 4.1k

Repositories

Showing 10 of 6963 repositories
  • Rust 174 MIT 27 19 (1 issue needs help) 8 Updated Jul 16, 2025
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    TypeScript 7,459 MIT 831 0 31 Updated Jul 16, 2025
  • Agents-M365Copilot Public

    Copilot Control Systems SDKs

    C# 8 MIT 4 5 1 Updated Jul 16, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    PowerShell 9,537 MIT 5,230 969 86 Updated Jul 16, 2025
  • Docker-Provider Public

    Azure Monitor for Containers

    Ruby 158 113 0 2 Updated Jul 16, 2025
  • lisa Public

    LISA is developed and maintained by Microsoft, to empower Linux validation.

    Python 305 MIT 212 33 (3 issues need help) 30 Updated Jul 16, 2025
  • healthcare-shared-components Public

    Shared packages used across Microsoft's health care services

    C# 89 MIT 40 1 3 Updated Jul 16, 2025
  • TypeAgent Public

    Sample code that explores an architecture for using language models to build a personal agent that can work with application agents.

    TypeScript 403 MIT 64 1 0 Updated Jul 16, 2025
  • service-fabric-services-and-actors-dotnet Public

    Reliable Services and Reliable Actors are Service Fabric application frameworks for building highly-scalable distributed cloud applications.

    C# 270 115 37 4 Updated Jul 16, 2025
  • mcp-for-beginners Public

    This open-source curriculum is designed to teach the concepts and fundamentals of the Model Context Protocol (MCP), with practical examples in .NET, Java, TypeScript, JavaScript and Python.

    Python 5,176 MIT 1,408 3 1 Updated Jul 16, 2025