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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 184k 39.3k

  2. TypeScript TypeScript Public

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

    TypeScript 109k 13.4k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C# 132k 7.9k

  4. terminal terminal Public

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

    C++ 103k 9.2k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.7k 4.6k

Repositories

Showing 10 of 7775 repositories
  • aspire Public

    Aspire is the tool for code-first, extensible, observable dev and deploy.

    microsoft/aspire’s past year of commit activity
    C# 5,834 MIT 865 1,719 (4 issues need help) 141 Updated Apr 18, 2026
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,600 MIT 614 187 532 Updated Apr 18, 2026
  • EventLogExpert Public
    microsoft/EventLogExpert’s past year of commit activity
    C# 265 MIT 31 3 1 Updated Apr 18, 2026
  • tgrep Public

    Trigram-indexed grep with a client/server architecture for fast regex search in large codebases locally

    microsoft/tgrep’s past year of commit activity
    Rust 7 MIT 2 0 2 Updated Apr 18, 2026
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 142 MIT 35 1 (1 issue needs help) 1 Updated Apr 18, 2026
  • BC-Bench Public

    Inspired by SWE-Bench, for Business Central (AL) ecosystem.

    microsoft/BC-Bench’s past year of commit activity
    Jupyter Notebook 22 MIT 7 1 5 Updated Apr 18, 2026
  • 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# 11,797 MIT 653 26 (13 issues need help) 29 Updated Apr 18, 2026
  • SQL_LinuxDiag Public

    This utility is a set of Bash scripts designed to streamline the collection of diagnostic logs from SQL Server instances running on Linux. It simplifies troubleshooting by gathering essential system and SQL Server data, enabling faster resolution of technical incidents in collaboration with Microsoft support (CSS).

    microsoft/SQL_LinuxDiag’s past year of commit activity
    TSQL 0 MIT 1 0 0 Updated Apr 18, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 183,997 MIT 39,266 5,000+ (501 issues need help) 1,733 Updated Apr 18, 2026
  • Agent365-devTools Public

    The Microsoft Agent 365 DevTools CLI is a command-line interface tool designed to streamline the development, deployment, and management of Microsoft Agent 365 applications.

    microsoft/Agent365-devTools’s past year of commit activity
    C# 31 MIT 14 2 11 Updated Apr 18, 2026
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