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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 179k 36.7k

  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# 126k 7.5k

  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# 26.8k 4.4k

Repositories

Showing 10 of 7432 repositories
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,810 554 132 15 Updated Dec 8, 2025
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    microsoft/typescript-go’s past year of commit activity
    Go 23,169 Apache-2.0 756 167 (1 issue needs help) 52 Updated Dec 8, 2025
  • playwright Public

    Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

    microsoft/playwright’s past year of commit activity
    TypeScript 80,001 Apache-2.0 4,892 545 11 Updated Dec 8, 2025
  • Agent365-devTools Public
    microsoft/Agent365-devTools’s past year of commit activity
    C# 7 MIT 2 9 6 Updated Dec 8, 2025
  • WindowsAppSDK Public

    The Windows App SDK empowers all Windows desktop apps with modern Windows UI, APIs, and platform features, including back-compat support, shipped via NuGet.

    microsoft/WindowsAppSDK’s past year of commit activity
    C++ 4,357 MIT 401 327 (12 issues need help) 45 Updated Dec 8, 2025
  • 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 25 MIT 8 2 5 Updated Dec 8, 2025
  • debug-gym Public

    A Text-Based Environment for Interactive Debugging

    microsoft/debug-gym’s past year of commit activity
    Python 283 MIT 38 14 14 Updated Dec 8, 2025
  • GSL Public

    Guidelines Support Library

    microsoft/GSL’s past year of commit activity
    C++ 6,575 760 9 (2 issues need help) 5 Updated Dec 8, 2025
  • rulesxp Public

    Mini Rules evaluator for JSONLogic or S-expression based rules

    microsoft/rulesxp’s past year of commit activity
    Rust 2 MIT 1 0 0 Updated Dec 8, 2025
  • Agents-for-net Public

    This repository is for active development of the Microsoft 365 Agent SDK components for .NET

    microsoft/Agents-for-net’s past year of commit activity
    C# 134 MIT 64 28 7 Updated Dec 8, 2025
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