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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 38.1k

  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# 27.3k 4.5k

Repositories

Showing 10 of 7598 repositories
  • DataFactory.MCP Public
    microsoft/DataFactory.MCP’s past year of commit activity
    C# 7 MIT 7 13 4 Updated Feb 25, 2026
  • SymCrypt-OpenSSL Public

    OpenSSL engine for use with SymCrypt cryptographic library

    microsoft/SymCrypt-OpenSSL’s past year of commit activity
    C 77 MIT 13 2 8 Updated Feb 25, 2026
  • 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# 2,653 MIT 390 195 (15 issues need help) 65 Updated Feb 25, 2026
  • vscode-python-tools-extension-template Public template

    Template for creating VS Code extensions for python tools.

    microsoft/vscode-python-tools-extension-template’s past year of commit activity
    Python 176 51 1 17 Updated Feb 25, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,514 MIT 1,670 1 188 Updated Feb 25, 2026
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,842 571 142 15 Updated Feb 25, 2026
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 19,390 MIT 3,727 854 430 Updated Feb 25, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 182,079 MIT 38,139 5,000+ (525 issues need help) 1,186 Updated Feb 25, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL’s past year of commit activity
    C++ 31,163 MIT 1,623 934 25 Updated Feb 25, 2026
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,582 MIT 604 179 496 Updated Feb 25, 2026
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