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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 Public

    Visual Studio Code

    TypeScript 171k 32.4k

  2. TypeScript Public

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

    TypeScript 105k 12.8k

  3. PowerToys Public

    Windows system utilities to maximize productivity

    C# 119k 7k

  4. terminal Public

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

    C++ 98.2k 8.6k

  5. semantic-kernel Public

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

    C# 24.5k 3.8k

Repositories

Showing 10 of 6843 repositories
  • vscode-python Public Forked from DonJayamanne/pythonVSCode

    Python extension for Visual Studio Code

    TypeScript 4,419 MIT 1,692 399 (4 issues need help) 5 Updated May 20, 2025
  • DynamicProto-JS Public

    Generates dynamic prototype methods for JavaScript objects (classes) by supporting method definition within their "class" constructor (like an instance version), this removes the need to expose internal properties on the instance (this) which results in better code minfication and therefore improved load times for your users.

    TypeScript 24 MIT 12 3 1 Updated May 20, 2025
  • pxt Public

    Microsoft MakeCode (PXT - Programming eXperience Toolkit)

    TypeScript 2,159 MIT 593 197 (2 issues need help) 49 Updated May 20, 2025
  • genaiscript Public

    Automatable GenAI Scripting

    TypeScript 2,594 MIT 173 89 (2 issues need help) 1 Updated May 20, 2025
  • AI_Agents_Hackathon Public

    A free virtual hackathon for building AI agents with Microsoft and Azure.

    258 MIT 85 561 0 Updated May 20, 2025
  • perfview Public

    PerfView is a CPU and memory performance-analysis tool

    C# 4,394 MIT 733 262 (15 issues need help) 9 Updated May 20, 2025
  • playwright Public

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

    TypeScript 72,724 Apache-2.0 4,153 788 15 Updated May 20, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    PowerShell 9,341 MIT 5,055 964 173 Updated May 20, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    C++ 118 MIT 29 3 (1 issue needs help) 0 Updated May 20, 2025
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    Go 19,760 Apache-2.0 604 52 22 Updated May 20, 2025
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