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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
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,213 MIT 6,033 1,112 549 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 14,266 MIT 4,696 0 1 Updated Feb 8, 2026
  • qdk-ec Public
    microsoft/qdk-ec’s past year of commit activity
    Rust 15 MIT 3 0 2 Updated Feb 8, 2026
  • amplifier-foundation Public

    Foundation library for the Amplifier project

    microsoft/amplifier-foundation’s past year of commit activity
    Python 8 MIT 11 0 6 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
  • Power-Fx Public

    Power Fx low-code programming language

    microsoft/Power-Fx’s past year of commit activity
    C# 3,336 MIT 354 274 (9 issues need help) 78 Updated Feb 8, 2026
  • Oryx Public

    Build your repo automatically.

    microsoft/Oryx’s past year of commit activity
    C# 858 195 80 145 Updated Feb 8, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps’s past year of commit activity
    AL 531 MIT 320 81 83 Updated Feb 8, 2026
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,830 570 130 27 Updated Feb 8, 2026
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 139 MIT 34 1 (1 issue needs help) 3 Updated Feb 8, 2026
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