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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# 23.8k 3.7k

Repositories

Showing 10 of 6739 repositories
  • TypeAgent Public

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

    microsoft/TypeAgent’s past year of commit activity
    TypeScript 142 MIT 33 0 1 Updated Apr 5, 2025
  • onnxruntime-genai Public

    Generative AI extensions for onnxruntime

    microsoft/onnxruntime-genai’s past year of commit activity
    C++ 674 MIT 165 88 29 Updated Apr 5, 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 641 213 23 Updated Apr 5, 2025
  • react-native-windows Public

    A framework for building native Windows apps with React.

    microsoft/react-native-windows’s past year of commit activity
    C++ 16,689 1,155 673 (13 issues need help) 40 Updated Apr 5, 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) 11 Updated Apr 5, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,233 MIT 4,948 884 219 Updated Apr 5, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 169,552 MIT 31,359 5,000+ (401 issues need help) 530 Updated Apr 5, 2025
  • RD-Agent Public

    Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through our open source R&D automation tool RD-Agent, which lets AI drive data-driven AI.

    microsoft/RD-Agent’s past year of commit activity
    Python 3,991 MIT 335 18 20 Updated Apr 5, 2025
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 859 MIT 270 242 21 Updated Apr 5, 2025
  • synapse-spark-runtime Public

    Release notes for Apache Spark based Runtime for Azure Synapse Analytics and Microsoft Fabric

    microsoft/synapse-spark-runtime’s past year of commit activity
    21 MIT 4 6 0 Updated Apr 5, 2025
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