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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 170k 31.4k

  2. TypeScript TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 117k 6.9k

  4. terminal terminal Public

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

    C++ 97.6k 8.5k

  5. semantic-kernel semantic-kernel Public

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

    C# 23.9k 3.7k

Repositories

Showing 10 of 6739 repositories
  • vssdktestfx Public

    A testing framework for Visual Studio extensions

    microsoft/vssdktestfx’s past year of commit activity
    C# 17 MIT 9 2 4 Updated Apr 6, 2025
  • vsts-extension-retrospectives Public

    An Azure DevOps extension for efficient retrospectives

    microsoft/vsts-extension-retrospectives’s past year of commit activity
    TypeScript 191 MIT 84 230 (4 issues need help) 12 Updated Apr 6, 2025
  • codeql Public Forked from github/codeql

    CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security

    microsoft/codeql’s past year of commit activity
    CodeQL 11 MIT 1,879 13 14 Updated Apr 6, 2025
  • CsWin32 Public

    A source generator to add a user-defined set of Win32 P/Invoke methods and supporting types to a C# project.

    microsoft/CsWin32’s past year of commit activity
    C# 2,234 MIT 100 113 (2 issues need help) 5 Updated Apr 6, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 169,589 MIT 31,373 5,000+ (401 issues need help) 530 Updated Apr 6, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,235 MIT 4,949 890 166 Updated Apr 6, 2025
  • vs-validation Public

    Common input and integrity validation routines for Visual Studio and other applications

    microsoft/vs-validation’s past year of commit activity
    C# 116 29 3 5 Updated Apr 6, 2025
  • ALAppExtensions Public

    Repository for collaboration on Microsoft AL application add-on and localization extensions for Microsoft Dynamics 365 Business Central.

    microsoft/ALAppExtensions’s past year of commit activity
    AL 853 MIT 641 217 23 Updated Apr 6, 2025
  • autogen Public

    A programming framework for agentic AI 🤖 PyPi: autogen-agentchat Discord: https://aka.ms/autogen-discord Office Hour: https://aka.ms/autogen-officehour

    microsoft/autogen’s past year of commit activity
    Python 42,724 CC-BY-4.0 6,398 480 (26 issues need help) 43 Updated Apr 6, 2025
  • SeerAttention Public

    SeerAttention: Learning Intrinsic Sparse Attention in Your LLMs

    microsoft/SeerAttention’s past year of commit activity
    Python 92 MIT 4 1 0 Updated Apr 6, 2025
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