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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 179k 36.7k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.2k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 126k 7.5k

  4. terminal terminal Public

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

    C++ 101k 8.9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.8k 4.4k

Repositories

Showing 10 of 7431 repositories
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,977 MIT 5,694 1,089 594 Updated Dec 6, 2025
  • terminal Public

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

    microsoft/terminal’s past year of commit activity
    C++ 101,025 MIT 8,949 1,632 (500 issues need help) 43 Updated Dec 6, 2025
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 617 MIT 120 211 18 Updated Dec 6, 2025
  • qdk Public

    Azure Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas

    microsoft/qdk’s past year of commit activity
    Rust 810 MIT 156 150 (1 issue needs help) 5 Updated Dec 6, 2025
  • agent-lightning Public

    The absolute trainer to light up AI agents.

    microsoft/agent-lightning’s past year of commit activity
    Python 9,410 MIT 757 53 (12 issues need help) 29 Updated Dec 6, 2025
  • sqltoolsservice Public

    SQL Tools API service that provides SQL Server data management capabilities.

    microsoft/sqltoolsservice’s past year of commit activity
    C# 483 160 62 4 Updated Dec 6, 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# 962 MIT 289 223 30 Updated Dec 6, 2025
  • oxidizer Public

    Oxidizer is a platform for Rust service development which bridges the gaps in the crate ecosystem to deliver a turn-key solution to enable the efficient creation of high-scale high-availability and high-performance services in Rust.

    microsoft/oxidizer’s past year of commit activity
    Rust 25 MIT 8 2 4 Updated Dec 6, 2025
  • AI-Red-Teaming-Playground-Labs Public

    AI Red Teaming playground labs to run AI Red Teaming trainings including infrastructure.

    microsoft/AI-Red-Teaming-Playground-Labs’s past year of commit activity
    TypeScript 1,752 MIT 257 1 9 Updated Dec 6, 2025
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 18,573 MIT 3,584 838 359 Updated Dec 6, 2025
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