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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 178k 36k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.1k

  3. PowerToys PowerToys Public

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

    C# 125k 7.5k

  4. terminal terminal Public

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

    C++ 101k 8.9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.6k 4.3k

Repositories

Showing 10 of 7312 repositories
  • Agents-for-net Public

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

    microsoft/Agents-for-net’s past year of commit activity
    C# 130 MIT 65 29 12 Updated Nov 6, 2025
  • codeql Public Forked from github/codeql

    CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security

    microsoft/codeql’s past year of commit activity
    C# 17 MIT 2,074 14 13 Updated Nov 6, 2025
  • qlib Public

    Qlib is an AI-oriented Quant investment platform that aims to use AI tech to empower Quant Research, from exploring ideas to implementing productions. Qlib supports diverse ML modeling paradigms, including supervised learning, market dynamics modeling, and RL, and is now equipped with https://github.com/microsoft/RD-Agent to automate R&D process.

    microsoft/qlib’s past year of commit activity
    Python 33,379 MIT 5,143 262 (2 issues need help) 40 Updated Nov 6, 2025
  • vcpkg-tool Public

    Components of microsoft/vcpkg's binary.

    microsoft/vcpkg-tool’s past year of commit activity
    C++ 528 MIT 330 8 48 Updated Nov 6, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 178,265 MIT 35,972 5,000+ (462 issues need help) 843 Updated Nov 6, 2025
  • scitt-ccf-ledger Public

    Supply Chain Integrity Transparency and Trust ledger application using Confidential Consortium Framework (CCF)

    microsoft/scitt-ccf-ledger’s past year of commit activity
    Python 39 MIT 21 12 2 Updated Nov 6, 2025
  • service-fabric-services-and-actors-dotnet Public

    Reliable Services and Reliable Actors are Service Fabric application frameworks for building highly-scalable distributed cloud applications.

    microsoft/service-fabric-services-and-actors-dotnet’s past year of commit activity
    C# 272 113 38 3 Updated Nov 6, 2025
  • vscode-docs Public

    Public documentation for Visual Studio Code

    microsoft/vscode-docs’s past year of commit activity
    Markdown 6,226 5,408 103 (1 issue needs help) 16 Updated Nov 6, 2025
  • typespec Public
    microsoft/typespec’s past year of commit activity
    Java 5,445 MIT 316 979 (3 issues need help) 43 Updated Nov 6, 2025
  • graphitation Public

    GraphQL tooling & runtime support needed for MS Teams and beyond

    microsoft/graphitation’s past year of commit activity
    TypeScript 147 MIT 43 29 27 Updated Nov 6, 2025
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