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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# 27k 4.4k

Repositories

Showing 10 of 7489 repositories
  • oxidizer Public

    Oxidizer is a platform for Rust service development which bridges the gaps in the crate ecosystem to deliver a turn-key solution to enable the efficient creation of high-scale high-availability and high-performance services in Rust.

    microsoft/oxidizer’s past year of commit activity
    Rust 44 MIT 12 10 10 Updated Jan 15, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,123 MIT 5,912 1,067 438 Updated Jan 15, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 180,685 MIT 37,397 5,000+ (543 issues need help) 971 Updated Jan 15, 2026
  • playwright.dev Public

    Documentation website for Playwright

    microsoft/playwright.dev’s past year of commit activity
    MDX 165 CC-BY-4.0 116 10 0 Updated Jan 15, 2026
  • AI-For-Beginners Public

    12 Weeks, 24 Lessons, AI for All!

    microsoft/AI-For-Beginners’s past year of commit activity
    Jupyter Notebook 44,907 MIT 9,071 2 1 Updated Jan 15, 2026
  • RD-Agent Public

    Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through R&D-Agent, which lets AI drive data-driven AI. 🔗https://aka.ms/RD-Agent-Tech-Report

    microsoft/RD-Agent’s past year of commit activity
    Python 10,255 MIT 1,154 65 66 Updated Jan 15, 2026
  • vscode-azureresourcegroups Public

    VS Code extension for managing Azure resources.

    microsoft/vscode-azureresourcegroups’s past year of commit activity
    TypeScript 69 MIT 47 157 11 Updated Jan 15, 2026
  • 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 291 207 19 Updated Jan 15, 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# 2,428 MIT 343 199 (25 issues need help) 59 Updated Jan 15, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,279 MIT 1,569 0 123 Updated Jan 15, 2026
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