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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 182k 38.2k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys PowerToys Public

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

    C# 130k 7.7k

  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# 27.3k 4.5k

Repositories

Showing 10 of 7610 repositories
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 182,163 MIT 38,211 5,000+ (525 issues need help) 1,206 Updated Feb 28, 2026
  • VSSDK-Analyzers Public

    Roslyn analyzers for Visual Studio extensions

    microsoft/VSSDK-Analyzers’s past year of commit activity
    C# 52 MIT 31 12 (1 issue needs help) 10 Updated Feb 28, 2026
  • LangChain4j-for-Beginners Public

    A course for AI applications with LangChain4j from simple chat to AI agents.

    microsoft/LangChain4j-for-Beginners’s past year of commit activity
    Java 191 MIT 67 0 1 Updated Feb 28, 2026
  • ado-npm-auth Public

    This package can automatically use the azureauth CLI to fetch tokens and update a user's .npmrc file for authenticating to Azure DevOps npm feeds.

    microsoft/ado-npm-auth’s past year of commit activity
    TypeScript 18 MIT 16 13 11 Updated Feb 28, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,521 MIT 1,679 1 190 Updated Feb 28, 2026
  • vs-mef Public

    Managed Extensibility Framework (MEF) implementation used by Visual Studio

    microsoft/vs-mef’s past year of commit activity
    C# 459 MIT 89 22 11 Updated Feb 28, 2026
  • aitour26-WRK570-improving-ops-with-azure-copilot-and-github-copilot Public
    microsoft/aitour26-WRK570-improving-ops-with-azure-copilot-and-github-copilot’s past year of commit activity
    TypeScript 24 MIT 104 0 15 Updated Feb 28, 2026
  • m365-renovate-config Public

    Shared Renovate configuration for M365 projects

    microsoft/m365-renovate-config’s past year of commit activity
    JavaScript 12 MIT 5 1 4 Updated Feb 28, 2026
  • BotFramework-WebChat Public

    A highly-customizable web-based client for Azure Bot Services.

    microsoft/BotFramework-WebChat’s past year of commit activity
    HTML 1,772 MIT 1,604 470 33 Updated Feb 28, 2026
  • trident Public

    Azure Linux servicing agent - security focused install, provisioning, and update

    microsoft/trident’s past year of commit activity
    Rust 20 MIT 15 12 9 Updated Feb 28, 2026
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