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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 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
  • garnet Public

    Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with existing Redis clients.

    microsoft/garnet’s past year of commit activity
    C# 11,622 MIT 625 26 (13 issues need help) 15 Updated Dec 21, 2025
  • 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 21, 2025
  • RD-Agent Public

    Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through R&D-Agent, which lets AI drive data-driven AI. 🔗https://aka.ms/RD-Agent-Tech-Report

    microsoft/RD-Agent’s past year of commit activity
    Python 9,881 MIT 1,095 62 65 Updated Dec 21, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,031 MIT 5,780 1,105 1,024 Updated Dec 21, 2025
  • sre-agent Public

    Azure SRE Agent is an AI-powered reliability assistant that helps teams diagnose and resolve production issues, reduce operational toil, and lower mean time to resolution

    microsoft/sre-agent’s past year of commit activity
    23 MIT 12 20 3 Updated Dec 21, 2025
  • amplifier-foundation Public

    Foundation library for the Amplifier project

    microsoft/amplifier-foundation’s past year of commit activity
    Python 2 MIT 2 0 3 Updated Dec 21, 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 21, 2025
  • LightGBM Public

    A fast, distributed, high performance gradient boosting (GBT, GBDT, GBRT, GBM or MART) framework based on decision tree algorithms, used for ranking, classification and many other machine learning tasks.

    microsoft/LightGBM’s past year of commit activity
    C++ 17,941 MIT 3,967 426 (10 issues need help) 44 Updated Dec 21, 2025
  • vsts-extension-retrospectives Public

    An Azure DevOps extension for efficient retrospectives

    microsoft/vsts-extension-retrospectives’s past year of commit activity
    TypeScript 201 MIT 95 166 (2 issues need help) 4 Updated Dec 21, 2025
  • Microsoft-Fabric-tools-workload Public

    A Fabric Workload that adds different tools as items.

    microsoft/Microsoft-Fabric-tools-workload’s past year of commit activity
    TypeScript 14 9 0 0 Updated Dec 21, 2025
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