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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 180k 37k

  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# 127k 7.5k

  4. terminal terminal Public

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

    C++ 101k 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.9k 4.4k

Repositories

Showing 10 of 7448 repositories
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 18,713 MIT 3,605 849 358 Updated Dec 19, 2025
  • typespec Public
    microsoft/typespec’s past year of commit activity
    Java 5,497 MIT 324 992 (3 issues need help) 43 Updated Dec 19, 2025
  • ai-dev-gallery Public

    An open-source project for Windows developers to learn how to add AI with local models and APIs to Windows apps.

    microsoft/ai-dev-gallery’s past year of commit activity
    C# 1,351 MIT 186 63 (2 issues need help) 7 Updated Dec 19, 2025
  • PowerToys Public

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

    microsoft/PowerToys’s past year of commit activity
    C# 126,591 MIT 7,542 5,000+ (221 issues need help) 94 Updated Dec 19, 2025
  • fluentui Public

    Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

    microsoft/fluentui’s past year of commit activity
    TypeScript 19,754 2,862 429 (6 issues need help) 228 Updated Dec 19, 2025
  • RD-Agent Public

    Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through R&D-Agent, which lets AI drive data-driven AI. đź”—https://aka.ms/RD-Agent-Tech-Report

    microsoft/RD-Agent’s past year of commit activity
    Python 9,849 MIT 1,087 62 66 Updated Dec 19, 2025
  • azure-pipelines-agent Public

    Azure Pipelines Agent 🚀

    microsoft/azure-pipelines-agent’s past year of commit activity
    C# 1,861 MIT 912 78 137 Updated Dec 19, 2025
  • zerotrustassessment Public

    Repository for the Zero Trust Assessment project

    microsoft/zerotrustassessment’s past year of commit activity
    HTML 236 MIT 115 27 9 Updated Dec 19, 2025
  • dstoolkit-devcontainers Public template

    A machine learning project template that makes it easy to work with multiple Docker based VSCode Dev Containers. Easily transition projects to the cloud and production with automated code quality checks, pytest configuration, CI pipeline templates & AML cloud example

    microsoft/dstoolkit-devcontainers’s past year of commit activity
    Python 46 MIT 12 1 2 Updated Dec 19, 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
    Python 104 88 124 10 Updated Dec 19, 2025
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