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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 175k 33.9k

  2. TypeScript TypeScript Public

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

    TypeScript 105k 12.9k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 121k 7.2k

  4. terminal terminal Public

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

    C++ 99k 8.7k

  5. semantic-kernel semantic-kernel Public

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

    C# 25.5k 4.1k

Repositories

Showing 10 of 6960 repositories
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,544 MIT 5,240 970 94 Updated Jul 20, 2025
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 17,261 MIT 3,342 2,014 263 Updated Jul 20, 2025
  • p4vfs Public

    Microsoft Virtual File System for Perforce

    microsoft/p4vfs’s past year of commit activity
    C++ 290 MIT 20 17 1 Updated Jul 20, 2025
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    microsoft/typescript-go’s past year of commit activity
    Go 21,318 Apache-2.0 663 96 27 Updated Jul 20, 2025
  • Generative-AI-for-beginners-dotnet Public

    Five lessons, learn how to really apply AI to your .NET Applications

    microsoft/Generative-AI-for-beginners-dotnet’s past year of commit activity
    C# 1,596 MIT 1,189 3 4 Updated Jul 20, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 174,767 MIT 33,851 5,000+ (432 issues need help) 641 Updated Jul 20, 2025
  • 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# 903 MIT 278 221 32 Updated Jul 20, 2025
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 596 MIT 114 212 19 Updated Jul 20, 2025
  • hermes-windows Public Forked from facebook/hermes

    Hermes is a small and lightweight JavaScript engine optimized for running React Native apps..

    microsoft/hermes-windows’s past year of commit activity
    C++ 64 MIT 781 21 3 Updated Jul 20, 2025
  • simplechat Public

    Secure AI conversations with documents, video, audio, and more. Personal workspaces for focused context, group spaces for shared insight. Classify docs, reuse prompts, and extend with modular features.

    microsoft/simplechat’s past year of commit activity
    JavaScript 70 51 101 1 Updated Jul 20, 2025
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