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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 179k 36.7k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.2k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 126k 7.5k

  4. terminal terminal Public

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

    C++ 101k 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.8k 4.4k

Repositories

Showing 10 of 7431 repositories
  • pxt-arcade Public

    Arcade game editor based on Microsoft MakeCode

    microsoft/pxt-arcade’s past year of commit activity
    TypeScript 529 MIT 238 515 (23 issues need help) 46 Updated Dec 7, 2025
  • PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    microsoft/PowerToys’s past year of commit activity
    C# 126,273 MIT 7,519 5,000+ (223 issues need help) 105 Updated Dec 7, 2025
  • amlFilesystem-lustre Public

    Lustre Repository with MS patches

    microsoft/amlFilesystem-lustre’s past year of commit activity
    C 12 15 1 0 Updated Dec 7, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 133 MIT 30 3 (1 issue needs help) 0 Updated Dec 7, 2025
  • TypeScript-DOM-lib-generator Public

    Tool for generating dom related TypeScript and JavaScript library files

    microsoft/TypeScript-DOM-lib-generator’s past year of commit activity
    TypeScript 710 Apache-2.0 457 155 42 Updated Dec 7, 2025
  • openjdk-jdk25u Public

    Read-only mirror of openjdk/jdk25u

    microsoft/openjdk-jdk25u’s past year of commit activity
    Java 3 GPL-2.0 2 0 0 Updated Dec 7, 2025
  • vscode-cosmosdb Public

    Azure Cosmos DB extension for VS Code

    microsoft/vscode-cosmosdb’s past year of commit activity
    TypeScript 187 MIT 76 61 13 Updated Dec 7, 2025
  • vscode-typescript-next Public

    Enables typescript@next as VS Code's built-in TypeScript version

    microsoft/vscode-typescript-next’s past year of commit activity
    JavaScript 279 MIT 46 8 1 Updated Dec 7, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,980 MIT 5,698 1,088 528 Updated Dec 7, 2025
  • durabletask-dotnet Public

    Out-of-process .NET SDK for the Durable Task Framework

    microsoft/durabletask-dotnet’s past year of commit activity
    C# 170 MIT 52 64 26 Updated Dec 7, 2025
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