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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 187k 40.7k

  2. TypeScript TypeScript Public

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

    TypeScript 109k 13.4k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C 136k 8.2k

  4. terminal terminal Public

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

    C++ 104k 9.4k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.2k 4.7k

Repositories

Showing 10 of 8146 repositories
  • qdk-chemistry Public

    A high-performance toolkit for quantum and classical chemistry calculations.

    microsoft/qdk-chemistry’s past year of commit activity
    C++ 56 MIT 26 23 28 Updated Jun 26, 2026
  • dbt-scope Public

    Bringing dbt to SCOPE

    microsoft/dbt-scope’s past year of commit activity
    Python 4 MIT 1 5 4 Updated Jun 26, 2026
  • hve-core Public

    A refined collection of Hypervelocity Engineering components (instructions, prompts, agents, and skills) to start your project off right, or upgrade your existing projects to get the most out of GitHub Copilot

    microsoft/hve-core’s past year of commit activity
    PowerShell 1,225 MIT 219 424 (1 issue needs help) 38 Updated Jun 26, 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 11,694 MIT 1,969 489 184 Updated Jun 26, 2026
  • qdk Public

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

    microsoft/qdk’s past year of commit activity
    Rust 953 MIT 207 141 (1 issue needs help) 23 Updated Jun 26, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 186,824 MIT 40,679 5,000+ (498 issues need help) 2,192 Updated Jun 26, 2026
  • litebox Public

    A security-focused library OS supporting kernel- and user-mode execution

    microsoft/litebox’s past year of commit activity
    Rust 2,638 MIT 133 98 24 Updated Jun 26, 2026
  • FluidFramework Public

    Library for building distributed, real-time collaborative web applications

    microsoft/FluidFramework’s past year of commit activity
    TypeScript 4,932 MIT 578 71 109 Updated Jun 26, 2026
  • agent-host-protocol Public

    Synchronized multi-client state for AI agent sessions

    microsoft/agent-host-protocol’s past year of commit activity
    Swift 65 MIT 14 19 11 Updated Jun 26, 2026
  • xdp-for-windows Public

    XDP speeds up networking on Windows

    microsoft/xdp-for-windows’s past year of commit activity
    C 479 MIT 59 61 (1 issue needs help) 7 Updated Jun 26, 2026
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