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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 180k 37k

  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# 127k 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# 26.9k 4.4k

Repositories

Showing 10 of 7450 repositories
  • lisa Public

    LISA is developed and maintained by Microsoft, to empower Linux validation.

    microsoft/lisa’s past year of commit activity
    Python 319 MIT 225 36 (3 issues need help) 34 Updated Dec 22, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,032 MIT 5,783 1,101 1,014 Updated Dec 22, 2025
  • oxidizer Public

    Oxidizer is a platform for Rust service development which bridges the gaps in the crate ecosystem to deliver a turn-key solution to enable the efficient creation of high-scale high-availability and high-performance services in Rust.

    microsoft/oxidizer’s past year of commit activity
    Rust 29 MIT 11 5 9 Updated Dec 22, 2025
  • AOCoptimizer.jl Public

    Optimization solver backend for analog optical computer

    microsoft/AOCoptimizer.jl’s past year of commit activity
    Julia 8 MIT 4 1 1 Updated Dec 22, 2025
  • amplifier Public
    microsoft/amplifier’s past year of commit activity
    2,713 MIT 215 10 1 Updated Dec 22, 2025
  • amplifier-app-cli Public

    Reference implementation of CLI interface for Amplifier project

    microsoft/amplifier-app-cli’s past year of commit activity
    Python 7 MIT 12 2 2 Updated Dec 22, 2025
  • 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 5 Updated Dec 22, 2025
  • SAIMOpt.jl Public

    Julia back-end for using the AOC/AIM optimization service

    microsoft/SAIMOpt.jl’s past year of commit activity
    Julia 6 MIT 3 0 0 Updated Dec 22, 2025
  • ai-agent-evals Public

    Github action to evaluate AI agent applications using model as the judge, content safety and mathematical metrics.

    microsoft/ai-agent-evals’s past year of commit activity
    Python 56 MIT 13 6 9 Updated Dec 22, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 133 MIT 32 3 (1 issue needs help) 2 Updated Dec 22, 2025
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