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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 37.8k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys PowerToys Public

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

    C# 129k 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# 27.2k 4.5k

Repositories

Showing 10 of 7550 repositories
  • amplifier-foundation Public

    Foundation library for the Amplifier project

    microsoft/amplifier-foundation’s past year of commit activity
    Python 8 MIT 11 0 12 Updated Feb 8, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 181,504 MIT 37,791 5,000+ (534 issues need help) 1,086 Updated Feb 8, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL’s past year of commit activity
    C++ 31,045 MIT 1,611 941 19 Updated Feb 8, 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 14,262 MIT 4,693 0 1 Updated Feb 8, 2026
  • airflow-providers-microsoft-fabric Public

    Repository containing the source code for the Microsoft Fabric provider for Airflow.

    microsoft/airflow-providers-microsoft-fabric’s past year of commit activity
    Python 7 MIT 5 0 1 Updated Feb 8, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,208 MIT 6,028 1,109 540 Updated Feb 8, 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# 985 MIT 292 199 17 Updated Feb 8, 2026
  • dusseldorf Public

    Dusseldorf is an out-of-band security tool to help in security research.

    microsoft/dusseldorf’s past year of commit activity
    TypeScript 50 MIT 12 0 1 Updated Feb 8, 2026
  • MIDI Public

    Windows MIDI Services

    microsoft/MIDI’s past year of commit activity
    C++ 506 MIT 55 51 0 Updated Feb 8, 2026
  • microhacks-trust-ai Public
    microsoft/microhacks-trust-ai’s past year of commit activity
    Python 4 MIT 19 0 0 Updated Feb 8, 2026
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