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Right now, open communities are building amazing software together, and there are excellent "good first issue" opportunities, if you're looking to get involved.

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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 195k 43.8k

  2. TypeScript TypeScript Public

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

    Go 112k 14.7k

  3. PowerToys PowerToys Public

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

    C 141k 8.7k

  4. terminal terminal Public

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

    C++ 105k 9.7k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.8k 4.9k

Repositories

Showing 10 of 8451 repositories
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql's past year of commit activity
    TypeScript 1,921 618 239 17 Updated Nov 13, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 195,351 MIT 43,828 5,000+ (450 issues need help) 3,092 Updated Nov 13, 2026
  • FluidFramework Public

    Library for building distributed, real-time collaborative web applications

    microsoft/FluidFramework's past year of commit activity
    TypeScript 4,948 MIT 590 66 189 Updated Nov 13, 2026
  • playwright-python Public

    Python version of the Playwright testing and automation library.

    microsoft/playwright-python's past year of commit activity
    Python 15,107 Apache-2.0 1,256 0 0 Updated Nov 13, 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 100,107 Apache-2.0 6,873 22 11 Updated Nov 13, 2026
  • responsible-ai-toolbox Public

    Responsible AI Toolbox is a suite of tools providing model and data exploration and assessment user interfaces and libraries that enable a better understanding of AI systems. These interfaces and libraries empower developers and stakeholders of AI systems to develop and monitor AI more responsibly, and take better data-driven actions.

    microsoft/responsible-ai-toolbox's past year of commit activity
    TypeScript 1,856 MIT 509 53 (1 issue needs help) 31 Updated Nov 13, 2026
  • AIOpsLab Public

    A holistic framework to enable the design, development, and evaluation of autonomous AIOps agents.

    microsoft/AIOpsLab's past year of commit activity
    Python 1,033 MIT 179 16 (2 issues need help) 22 Updated Nov 13, 2026
  • lisa Public

    LISA is developed and maintained by Microsoft, to empower Linux validation.

    microsoft/lisa's past year of commit activity
    Python 337 MIT 261 43 (3 issues need help) 41 Updated Nov 13, 2026
  • storm Public

    Storm is a Go-based scenario-driven testing framework that executes complex, sequential end-to-end tests as standalone binaries, specifically designed for infrastructure validation and multi-stage deployment testing.

    microsoft/storm's past year of commit activity
    Go 2 MIT 2 8 4 Updated Nov 13, 2026
  • aspire.dev Public

    The official website for all things aspire.dev.

    microsoft/aspire.dev's past year of commit activity
    MDX 206 MIT 99 68 128 Updated Nov 13, 2026