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Open source projects and samples from Microsoft
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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 181k 37.4k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.2k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 128k 7.6k

  4. terminal terminal Public

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

    C++ 101k 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.1k 4.4k

Repositories

Showing 10 of 7496 repositories
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 976 MIT 291 204 15 Updated Jan 16, 2026
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    microsoft/typescript-go’s past year of commit activity
    Go 23,755 Apache-2.0 798 203 (1 issue needs help) 66 Updated Jan 16, 2026
  • Data-Science-For-Beginners Public

    10 Weeks, 20 Lessons, Data Science for All!

    microsoft/Data-Science-For-Beginners’s past year of commit activity
    Jupyter Notebook 31,806 MIT 6,746 1 4 Updated Jan 16, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,286 MIT 1,573 1 128 Updated Jan 16, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 180,742 MIT 37,415 5,000+ (541 issues need help) 974 Updated Jan 16, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL’s past year of commit activity
    C++ 30,889 MIT 1,583 937 12 Updated Jan 16, 2026
  • DirectXShaderCompiler Public

    This repo hosts the source for the DirectX Shader Compiler which is based on LLVM/Clang.

    microsoft/DirectXShaderCompiler’s past year of commit activity
    C++ 3,472 827 540 144 Updated Jan 16, 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 6,588 MIT 1,031 523 96 Updated Jan 16, 2026
  • IoT-For-Beginners Public

    12 Weeks, 24 Lessons, IoT for All!

    microsoft/IoT-For-Beginners’s past year of commit activity
    Jupyter Notebook 16,722 MIT 2,762 0 1 Updated Jan 16, 2026
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 619 MIT 122 215 28 Updated Jan 16, 2026
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