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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 194k 45.5k

  2. TypeScript TypeScript Public

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

    Go 111k 16.8k

  3. PowerToys PowerToys Public

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

    C 139k 8.6k

  4. terminal terminal Public

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

    C++ 105k 9.7k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.7k 4.8k

Repositories

Showing 10 of 8372 repositories
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 193,611 MIT 45,501 5,000+ (467 issues need help) 2,845 Updated Oct 14, 2026
  • onnxruntime Public

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

    microsoft/onnxruntime's past year of commit activity
    C++ 22,081 MIT 4,313 933 864 Updated Oct 14, 2026
  • winappCli Public

    winapp, the Windows App Development CLI, is a single command-line interface for managing Windows SDKs, packaging, generating app identity, manifests, certificates, and using build tools with any app framework.

    microsoft/winappCli's past year of commit activity
    C# 1,310 MIT 87 83 25 Updated Oct 14, 2026
  • microsoft-ui-reactor Public

    Reactor is an experimental set of extensions to WinUI

    microsoft/microsoft-ui-reactor's past year of commit activity
    C# 668 MIT 58 81 21 Updated Oct 14, 2026
  • power-pages-samples Public

    A repo containing sample websites for Power Pages.

    microsoft/power-pages-samples's past year of commit activity
    HTML 49 MIT 28 0 3 Updated Oct 14, 2026
  • Zoomit-Mac Public

    Sysinternals ZoomIt for MacOS

    microsoft/Zoomit-Mac's past year of commit activity
    Swift 1,074 MIT 48 20 8 Updated Oct 15, 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 1,021 MIT 219 210 (1 issue needs help) 48 Updated Oct 15, 2026
  • ebpf-for-windows Public

    eBPF implementation that runs on top of Windows

    microsoft/ebpf-for-windows's past year of commit activity
    C 3,572 MIT 310 269 (109 issues need help) 60 Updated Oct 14, 2026
  • aspire Public

    Aspire is the tool for code-first, extensible, observable dev and deploy.

    microsoft/aspire's past year of commit activity
    C# 6,371 MIT 1,010 2,329 (2 issues need help) 275 Updated Oct 14, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL's past year of commit activity
    C++ 34,088 MIT 1,859 958 63 Updated Oct 14, 2026
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