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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 182k 38k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys PowerToys Public

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

    C# 130k 7.7k

  4. terminal terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.2k 4.5k

Repositories

Showing 10 of 7574 repositories
  • TypeAgent Public

    Sample code that explores an architecture for using language models to build a personal agent that can work with application agents.

    microsoft/TypeAgent’s past year of commit activity
    TypeScript 612 MIT 85 6 6 Updated Feb 17, 2026
  • rushstack Public

    Monorepo for tools developed by the Rush Stack community

    microsoft/rushstack’s past year of commit activity
    TypeScript 6,416 668 870 (129 issues need help) 138 Updated Feb 17, 2026
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 19,306 MIT 3,699 868 414 Updated Feb 17, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 181,729 MIT 37,977 5,000+ (528 issues need help) 1,130 Updated Feb 17, 2026
  • airflow-providers-microsoft-fabric Public

    Repository containing the source code for the Microsoft Fabric provider for Airflow.

    microsoft/airflow-providers-microsoft-fabric’s past year of commit activity
    Python 8 MIT 5 0 1 Updated Feb 17, 2026
  • vscode-loc Public

    VS Code Localization Extension

    microsoft/vscode-loc’s past year of commit activity
    692 372 63 12 Updated Feb 17, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,248 MIT 6,096 1,104 569 Updated Feb 17, 2026
  • litebox Public

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

    microsoft/litebox’s past year of commit activity
    Rust 2,207 MIT 90 64 16 Updated Feb 17, 2026
  • hve-core Public

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

    microsoft/hve-core’s past year of commit activity
    PowerShell 110 MIT 50 123 (17 issues need help) 15 Updated Feb 17, 2026
  • MIDI Public

    Windows MIDI Services

    microsoft/MIDI’s past year of commit activity
    C++ 515 MIT 54 57 1 Updated Feb 17, 2026
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