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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
  • TypeAgent Public

    Sample code that explores an architecture for using language models to build a personal agent that can work with application agents.

    microsoft/TypeAgent’s past year of commit activity
    TypeScript 683 MIT 94 9 4 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
  • winappCli Public

    winapp, the Windows App Development CLI, is a single command-line interface for managing Windows SDKs, packaging, generating app identity, manifests, certificates, and using build tools with any app framework.

    microsoft/winappCli’s past year of commit activity
    C# 1,009 MIT 45 35 8 Updated Apr 18, 2026
  • litebox Public

    A security-focused library OS supporting kernel- and user-mode execution

    microsoft/litebox’s past year of commit activity
    Rust 2,555 MIT 114 79 40 Updated Apr 18, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 184,004 MIT 39,268 5,000+ (501 issues need help) 1,739 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
  • 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 1,720 (4 issues need help) 142 Updated Apr 18, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    10,493 MIT 6,727 1,147 308 Updated Apr 18, 2026
  • copilot-brag-sheet Public

    A Copilot CLI extension for logging work impact and accomplishments from sessions, PRs, and commits — designed for performance reviews and Connect cycles.

    microsoft/copilot-brag-sheet’s past year of commit activity
    JavaScript 0 MIT 0 10 0 Updated Apr 18, 2026
  • vs-servicehub Public

    The service broker libraries used by Visual Studio to exchange intra- and inter-process services

    microsoft/vs-servicehub’s past year of commit activity
    C# 30 MIT 12 6 8 Updated Apr 18, 2026
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