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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 43.8k

  2. TypeScript TypeScript Public

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

    Go 112k 14.7k

  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# 28.8k 4.9k

Repositories

Showing 10 of 8451 repositories
  • Oryx Public

    Build your repo automatically.

    microsoft/Oryx's past year of commit activity
    C# 883 199 93 120 Updated Nov 14, 2026
  • CCF Public

    Confidential Consortium Framework

    microsoft/CCF's past year of commit activity
    C++ 879 Apache-2.0 265 24 32 Updated Nov 14, 2026
  • azure-pipelines-task-lib Public

    Libraries for writing VSTS and TFS build tasks

    microsoft/azure-pipelines-task-lib's past year of commit activity
    TypeScript 459 MIT 281 1 70 Updated Nov 14, 2026
  • MigTD Public Forked from intel/MigTD
    microsoft/MigTD's past year of commit activity
    Rust 5 44 3 3 Updated Nov 14, 2026
  • PyRIT Public

    Open-source AI red teaming toolkit from Microsoft. Test generative AI systems with automated scans, adaptive multi-turn attacks, and a web UI.

    microsoft/PyRIT's past year of commit activity
    Python 4,823 MIT 1,055 137 (41 issues need help) 143 Updated Nov 14, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps's past year of commit activity
    AL 724 MIT 503 295 573 Updated Nov 14, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 195,362 MIT 43,837 5,000+ (450 issues need help) 3,108 Updated Nov 14, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs's past year of commit activity
    11,318 MIT 12,477 1,331 5,000+ Updated Nov 14, 2026
  • entrabot Public

    Give a device-local AI agent its own Microsoft Entra identity. Reference implementation for Microsoft Agent 365 and Entra Agent ID.

    microsoft/entrabot's past year of commit activity
    Python 12 MIT 7 67 5 Updated Nov 14, 2026
  • openaivec Public

    openaivec

    microsoft/openaivec's past year of commit activity
    Python 25 MIT 4 0 1 Updated Nov 14, 2026