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Open source projects and samples from Microsoft
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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 181k 37.4k

  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# 128k 7.6k

  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# 27k 4.4k

Repositories

Showing 10 of 7487 repositories
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,117 MIT 5,909 1,068 546 Updated Jan 14, 2026
  • vscode-windows-ca-certs Public Forked from ukoloff/win-ca

    Get Windows System Root certificates

    microsoft/vscode-windows-ca-certs’s past year of commit activity
    C++ 16 BSD-3-Clause 43 0 0 Updated Jan 14, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 180,657 MIT 37,373 5,000+ (544 issues need help) 958 Updated Jan 14, 2026
  • Agents-for-js Public

    This repository is for active development of the Microsoft 365 Agent SDK components for JavaScript

    microsoft/Agents-for-js’s past year of commit activity
    TypeScript 69 MIT 34 48 8 Updated Jan 14, 2026
  • yardl Public

    Tooling for streaming instrument data

    microsoft/yardl’s past year of commit activity
    C++ 33 MIT 12 24 0 Updated Jan 14, 2026
  • agent-academy Public

    Curated lessons on getting started building agents with Copilot Studio

    microsoft/agent-academy’s past year of commit activity
    PowerShell 1,239 MIT 103 48 0 Updated Jan 14, 2026
  • agent-framework Public

    A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

    microsoft/agent-framework’s past year of commit activity
    Python 6,536 MIT 1,021 521 102 Updated Jan 14, 2026
  • 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 19,791 2,861 425 (6 issues need help) 226 Updated Jan 14, 2026
  • fara Public

    Fara-7B: An Efficient Agentic Model for Computer Use

    microsoft/fara’s past year of commit activity
    Python 3,461 MIT 312 15 1 Updated Jan 14, 2026
  • LightGBM Public

    A fast, distributed, high performance gradient boosting (GBT, GBDT, GBRT, GBM or MART) framework based on decision tree algorithms, used for ranking, classification and many other machine learning tasks.

    microsoft/LightGBM’s past year of commit activity
    C++ 18,010 MIT 3,975 429 (10 issues need help) 46 Updated Jan 14, 2026
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