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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 183k 38.4k

  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 7653 repositories
  • accessibility-insights-action Public

    Github Action to scan for accessibility issues in github pages

    microsoft/accessibility-insights-action’s past year of commit activity
    TypeScript 95 MIT 44 7 27 Updated Mar 11, 2026
  • vscode-cosmosdb Public

    Azure Cosmos DB extension for VS Code

    microsoft/vscode-cosmosdb’s past year of commit activity
    TypeScript 191 MIT 78 65 9 Updated Mar 11, 2026
  • typespec Public
    microsoft/typespec’s past year of commit activity
    Java 5,620 MIT 341 1,017 (2 issues need help) 60 Updated Mar 11, 2026
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 992 MIT 291 197 31 Updated Mar 11, 2026
  • AL-Go Public

    The plug-and-play DevOps solution for Business Central app development on GitHub

    microsoft/AL-Go’s past year of commit activity
    PowerShell 448 MIT 183 22 12 Updated Mar 11, 2026
  • omnichannel-chat-sdk Public

    Headless Chat SDK to build your own chat widget against Dynamics 365 Omnichannel Services.

    microsoft/omnichannel-chat-sdk’s past year of commit activity
    TypeScript 63 MIT 58 2 6 Updated Mar 11, 2026
  • dotstrings Public

    Tools for dealing with the .strings resources for iOS and macOS

    microsoft/dotstrings’s past year of commit activity
    Python 14 MIT 8 1 2 Updated Mar 11, 2026
  • Multi-Agent-Custom-Automation-Engine-Solution-Accelerator Public

    The Multi-Agent Custom Automation Engine Solution Accelerator is an AI-driven system that manages a group of AI agents to accomplish tasks based on user input. Powered by Microsoft Agent Framework, Azure Foundry, Azure Cosmos DB, and infrastructure services, it provides a reference application, allowing you to hit the ground running.

    microsoft/Multi-Agent-Custom-Automation-Engine-Solution-Accelerator’s past year of commit activity
    Python 732 MIT 505 6 27 Updated Mar 11, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps’s past year of commit activity
    AL 546 MIT 350 79 101 Updated Mar 11, 2026
  • HeurAgenix Public
    microsoft/HeurAgenix’s past year of commit activity
    Python 78 MIT 18 1 0 Updated Mar 11, 2026
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