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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 37.3k

  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 7473 repositories
  • copilot-camp Public

    Hands-on labs for extending Microsoft 365 Copilot and building custom engine agents

    microsoft/copilot-camp’s past year of commit activity
    TypeScript 425 MIT 113 39 (1 issue needs help) 32 Updated Jan 12, 2026
  • agent-academy Public

    Curated lessons on getting started building agents with Copilot Studio

    microsoft/agent-academy’s past year of commit activity
    PowerShell 1,229 MIT 99 158 1 Updated Jan 12, 2026
  • 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# 1,379 MIT 199 60 (2 issues need help) 5 Updated Jan 12, 2026
  • MIDI Public

    Windows MIDI Services

    microsoft/MIDI’s past year of commit activity
    C++ 490 MIT 50 39 0 Updated Jan 12, 2026
  • amplifier-bundle-shadow Public

    Shadow environment bundle for the Amplifier project

    microsoft/amplifier-bundle-shadow’s past year of commit activity
    Python 1 MIT 1 0 0 Updated Jan 11, 2026
  • amplifier-app-cli Public

    Reference implementation of CLI interface for Amplifier project

    microsoft/amplifier-app-cli’s past year of commit activity
    Python 8 MIT 14 2 1 Updated Jan 12, 2026
  • 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. 🔗https://aka.ms/RD-Agent-Tech-Report

    microsoft/RD-Agent’s past year of commit activity
    Python 10,195 MIT 1,145 65 66 Updated Jan 12, 2026
  • vscode-ai-toolkit Public
    microsoft/vscode-ai-toolkit’s past year of commit activity
    1,869 MIT 199 99 4 Updated Jan 12, 2026
  • ALAppExtensions Public

    Repository for collaboration on Microsoft AL application add-on and localization extensions for Microsoft Dynamics 365 Business Central.

    microsoft/ALAppExtensions’s past year of commit activity
    AL 937 MIT 687 196 19 Updated Jan 11, 2026
  • v8-jsi Public

    React Native V8 JSI adapter

    microsoft/v8-jsi’s past year of commit activity
    C++ 184 40 6 6 Updated Jan 12, 2026
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