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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 184k 39.1k

  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# 132k 7.9k

  4. terminal terminal Public

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

    C++ 103k 9.2k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.7k 4.5k

Repositories

Showing 10 of 7755 repositories
  • Web-Dev-For-Beginners Public template

    24 Lessons, 12 Weeks, Get Started as a Web Developer

    microsoft/Web-Dev-For-Beginners’s past year of commit activity
    JavaScript 95,553 MIT 15,341 44 16 Updated Apr 11, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL’s past year of commit activity
    C++ 31,789 MIT 1,679 900 50 Updated Apr 11, 2026
  • fast Public

    The adaptive interface system for modern web experiences.

    microsoft/fast’s past year of commit activity
    TypeScript 9,638 616 81 8 Updated Apr 11, 2026
  • onnxruntime-genai Public

    Generative AI extensions for onnxruntime

    microsoft/onnxruntime-genai’s past year of commit activity
    C++ 1,002 MIT 279 130 32 Updated Apr 11, 2026
  • DiskANN Public

    Graph-structured Indices for Scalable, Fast, Fresh and Filtered Approximate Nearest Neighbor Search

    microsoft/DiskANN’s past year of commit activity
    Rust 1,745 MIT 399 133 (3 issues need help) 70 Updated Apr 11, 2026
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,599 MIT 609 186 531 Updated Apr 11, 2026
  • Agents-for-js Public

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

    microsoft/Agents-for-js’s past year of commit activity
    TypeScript 74 MIT 36 47 17 Updated Apr 11, 2026
  • litebox Public

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

    microsoft/litebox’s past year of commit activity
    Rust 2,551 MIT 112 79 35 Updated Apr 11, 2026
  • webui Public

    WebUI is a language-agnostic server-side rendering framework that compiles HTML templates into a binary protocol at build time and uses Web Components Islands Architecture for client-side interactivity. There is no JavaScript runtime on the server - rendering is Rust-native, sub-millisecond, and available from any backend language.

    microsoft/webui’s past year of commit activity
    Rust 11 MIT 0 7 (1 issue needs help) 3 Updated Apr 11, 2026
  • winappCli Public

    winapp, the Windows App Development CLI, is a single command-line interface for managing Windows SDKs, packaging, generating app identity, manifests, certificates, and using build tools with any app framework.

    microsoft/winappCli’s past year of commit activity
    C# 992 MIT 44 33 6 Updated Apr 11, 2026
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