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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 38.3k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.3k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C# 130k 7.8k

  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# 27.4k 4.5k

Repositories

Showing 10 of 7638 repositories
  • litebox Public

    A security-focused library OS supporting kernel- and user-mode execution

    microsoft/litebox’s past year of commit activity
    Rust 2,431 MIT 108 71 16 Updated Mar 7, 2026
  • react-native-windows Public

    A framework for building native Windows apps with React.

    microsoft/react-native-windows’s past year of commit activity
    C++ 17,204 1,192 692 (12 issues need help) 50 Updated Mar 7, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,295 MIT 6,270 1,140 420 Updated Mar 7, 2026
  • agent-governance-toolkit Public

    AI Agent Governance Toolkit — Policy enforcement, zero-trust identity, execution sandboxing, and reliability engineering for autonomous AI agents. Covers 10/10 OWASP Agentic Top 10.

    microsoft/agent-governance-toolkit’s past year of commit activity
    Python 6 MIT 1 30 (1 issue needs help) 3 Updated Mar 7, 2026
  • 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 83,649 Apache-2.0 5,239 591 18 Updated Mar 7, 2026
  • windows-rs Public

    Rust for Windows

    microsoft/windows-rs’s past year of commit activity
    Rust 11,977 Apache-2.0 603 33 0 Updated Mar 7, 2026
  • pxt-microbit Public

    A Blocks / JavaScript code editor for the micro:bit built on Microsoft MakeCode

    microsoft/pxt-microbit’s past year of commit activity
    TypeScript 793 708 358 (36 issues need help) 8 Updated Mar 7, 2026
  • FeatureManagement-Python Public

    This library provides standardized APIs for enabling feature flags within python applications. Utilize this library to secure a consistent experience when developing applications that use patterns such as beta access, rollout, dark deployments, and more.

    microsoft/FeatureManagement-Python’s past year of commit activity
    Python 23 MIT 7 2 2 Updated Mar 7, 2026
  • duroxide-node Public
    microsoft/duroxide-node’s past year of commit activity
    JavaScript 28 MIT 17 0 0 Updated Mar 6, 2026
  • accessibility-insights-service Public

    Accessibility Insights Service

    microsoft/accessibility-insights-service’s past year of commit activity
    TypeScript 76 51 0 28 Updated Mar 7, 2026
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