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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 169k 31.2k

  2. TypeScript TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 117k 6.9k

  4. terminal terminal Public

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

    C++ 97.5k 8.5k

  5. semantic-kernel semantic-kernel Public

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

    C# 23.7k 3.6k

Repositories

Showing 10 of 6726 repositories
  • react-native-test-app Public

    react-native-test-app provides an app for all supported platforms as a package

    microsoft/react-native-test-app’s past year of commit activity
    TypeScript 634 MIT 95 17 (1 issue needs help) 0 Updated Mar 28, 2025
  • graphitation Public

    GraphQL tooling & runtime support needed for MS Teams and beyond

    microsoft/graphitation’s past year of commit activity
    TypeScript 145 MIT 39 26 22 Updated Mar 28, 2025
  • fluentui-blazor Public

    Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications

    microsoft/fluentui-blazor’s past year of commit activity
    C# 4,203 MIT 409 31 7 Updated Mar 28, 2025
  • rnx-kit Public

    Modern, scalable tools. Exceptional developer experience.

    microsoft/rnx-kit’s past year of commit activity
    TypeScript 1,598 MIT 101 55 (5 issues need help) 2 Updated Mar 28, 2025
  • playwright-mcp Public

    Playwright Tools for MCP

    microsoft/playwright-mcp’s past year of commit activity
    TypeScript 5,146 Apache-2.0 218 14 1 Updated Mar 28, 2025
  • azure-pipelines-task-lib Public

    Libraries for writing VSTS and TFS build tasks

    microsoft/azure-pipelines-task-lib’s past year of commit activity
    TypeScript 431 MIT 276 7 49 Updated Mar 28, 2025
  • mu Public

    Project Mu Documentation

    microsoft/mu’s past year of commit activity
    Python 578 85 2 2 Updated Mar 28, 2025
  • secureboot_objects Public

    Secure boot objects recommended by Microsoft.

    microsoft/secureboot_objects’s past year of commit activity
    Python 45 14 4 3 Updated Mar 28, 2025
  • mu_rust_pi Public

    Platform Initialization (PI) Specification Definitions and Support Code

    microsoft/mu_rust_pi’s past year of commit activity
    Rust 3 13 3 1 Updated Mar 28, 2025
  • mu_rust_hid Public

    A Rust crate for parsing HID Report Descriptors.

    microsoft/mu_rust_hid’s past year of commit activity
    Rust 32 14 0 1 Updated Mar 28, 2025
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