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Open source projects and samples from Microsoft
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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 171k 31.9k

  2. TypeScript TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 118k 7k

  4. terminal terminal Public

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

    C++ 97.9k 8.5k

  5. semantic-kernel semantic-kernel Public

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

    C# 24.3k 3.8k

Repositories

Showing 10 of 6788 repositories
  • qsharp Public

    Azure Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas

    microsoft/qsharp’s past year of commit activity
    Rust 677 MIT 121 145 (1 issue needs help) 10 Updated Apr 30, 2025
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,430 MIT 575 161 558 Updated Apr 30, 2025
  • online-experimentation-metric-collections Public

    Sample metrics and data transformations for use with Online Experimentation.

    microsoft/online-experimentation-metric-collections’s past year of commit activity
    Bicep 1 MIT 3 0 3 Updated Apr 30, 2025
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,657 480 343 9 Updated Apr 30, 2025
  • graphrag Public

    A modular graph-based Retrieval-Augmented Generation (RAG) system

    microsoft/graphrag’s past year of commit activity
    Python 24,895 MIT 2,506 139 48 Updated Apr 30, 2025
  • prose Public

    Microsoft Program Synthesis using Examples SDK is a framework of technologies for the automatic generation of programs from input-output examples. This repo includes samples and sample data for the Microsoft Program Synthesis using Example SDK.

    microsoft/prose’s past year of commit activity
    C# 641 99 8 1 Updated Apr 30, 2025
  • playwright-mcp Public

    Playwright MCP server

    microsoft/playwright-mcp’s past year of commit activity
    TypeScript 9,296 Apache-2.0 522 30 11 Updated Apr 30, 2025
  • verified-storage Public

    Storage systems with verified correctness properties

    microsoft/verified-storage’s past year of commit activity
    C++ 45 MIT 15 0 6 Updated Apr 30, 2025
  • msquic Public

    Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.

    microsoft/msquic’s past year of commit activity
    C 4,290 MIT 560 180 (14 issues need help) 45 Updated Apr 30, 2025
  • retina Public

    eBPF distributed networking observability tool for Kubernetes

    microsoft/retina’s past year of commit activity
    Go 2,944 MIT 230 113 (18 issues need help) 41 Updated Apr 30, 2025
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