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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 177k 35.1k

  2. TypeScript TypeScript Public

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

    TypeScript 106k 13k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 124k 7.4k

  4. terminal terminal Public

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

    C++ 100k 8.8k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.2k 4.2k

Repositories

Showing 10 of 7127 repositories
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 17,900 MIT 3,457 837 321 Updated Sep 17, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,709 MIT 5,410 1,001 472 Updated Sep 17, 2025
  • PTVS Public

    Python Tools for Visual Studio

    microsoft/PTVS’s past year of commit activity
    C# 2,553 Apache-2.0 675 143 5 Updated Sep 17, 2025
  • teams.net Public

    a suite of packages used to build on the Teams Platform.

    microsoft/teams.net’s past year of commit activity
    C# 20 MIT 9 54 2 Updated Sep 17, 2025
  • qdk Public

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

    microsoft/qdk’s past year of commit activity
    Rust 769 MIT 140 159 (1 issue needs help) 8 Updated Sep 17, 2025
  • mcp Public

    Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

    microsoft/mcp’s past year of commit activity
    C# 1,765 MIT 176 207 (11 issues need help) 43 Updated Sep 17, 2025
  • chartifact Public

    Declarative, interactive data documents

    microsoft/chartifact’s past year of commit activity
    TypeScript 27 MIT 17 0 8 Updated Sep 17, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 176,793 MIT 35,069 5,000+ (436 issues need help) 744 Updated Sep 17, 2025
  • vscode-pull-request-github Public

    GitHub Pull Requests for Visual Studio Code

    microsoft/vscode-pull-request-github’s past year of commit activity
    TypeScript 2,456 MIT 651 366 (3 issues need help) 36 Updated Sep 17, 2025
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,486 MIT 594 180 571 Updated Sep 17, 2025
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