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Open Source at Microsoft

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Right now, open communities are building amazing software together, and there are excellent "good first issue" opportunities, if you're looking to get involved.

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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 195k 44.4k

  2. TypeScript TypeScript Public

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

    Go 112k 15.4k

  3. PowerToys PowerToys Public

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

    C 141k 8.7k

  4. terminal terminal Public

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

    C++ 105k 9.7k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.7k 4.9k

Repositories

Showing 10 of 8438 repositories
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 195,129 MIT 44,438 5,000+ (455 issues need help) 3,113 Updated Nov 7, 2026
  • nvx Public

    Cross-Platform Micro-VM Sandbox for Agentic Workloads

    microsoft/nvx's past year of commit activity
    Rust 826 MIT 55 165 15 Updated Nov 7, 2026
  • mimalloc Public

    mimalloc is a compact general purpose allocator with excellent performance.

    microsoft/mimalloc's past year of commit activity
    C 13,526 MIT 1,209 207 35 Updated Nov 7, 2026
  • simplechat Public

    Secure AI conversations with documents, video, audio, and more. Personal workspaces for focused context, group spaces for shared insight. Classify docs, reuse prompts, and extend with modular features.

    microsoft/simplechat's past year of commit activity
    Python 157 118 334 6 Updated Nov 7, 2026
  • Analytics-Hub Public

    A central hub for analytics resources, linking to repositories, guides, and templates leveraging MAC, Purview, and Viva Insights.

    microsoft/Analytics-Hub's past year of commit activity
    JavaScript 37 MIT 12 2 5 Updated Nov 7, 2026
  • amplifier-module-provider-azure-openai Public

    Reference implementation of an Azure OpenAI provider module for the Amplifier project

    microsoft/amplifier-module-provider-azure-openai's past year of commit activity
    Python 5 MIT 6 0 5 Updated Nov 7, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs's past year of commit activity
    11,291 MIT 12,092 1,333 5,000+ Updated Nov 7, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps's past year of commit activity
    AL 722 MIT 495 290 530 Updated Nov 7, 2026
  • amplifier-unified Public

    Unified shell for the Amplifier project

    microsoft/amplifier-unified's past year of commit activity
    Python 5 MIT 4 136 11 Updated Nov 7, 2026
  • openvmm Public

    Home of OpenVMM and OpenHCL

    microsoft/openvmm's past year of commit activity
    Rust 1,961 MIT 268 189 (6 issues need help) 180 Updated Nov 7, 2026