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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 Public

    Visual Studio Code

    TypeScript 170k 31.6k

  2. TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys Public

    Windows system utilities to maximize productivity

    C# 117k 6.9k

  4. terminal Public

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

    C++ 97.7k 8.5k

  5. semantic-kernel Public

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

    C# 24.1k 3.7k

Repositories

Showing 10 of 6759 repositories
  • PowerToys Public

    Windows system utilities to maximize productivity

    C# 117,483 MIT 6,944 5,000+ (195 issues need help) 79 Updated Apr 19, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    PowerShell 9,263 MIT 4,982 906 363 Updated Apr 19, 2025
  • UFO Public

    A UI-Focused Agent for Windows OS Interaction.

    Python 6,679 MIT 854 25 5 Updated Apr 19, 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.

    Python 4,161 MIT 355 22 24 Updated Apr 19, 2025
  • msquic Public

    Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.

    C 4,276 MIT 560 180 (14 issues need help) 51 Updated Apr 19, 2025
  • Dynamics365Commerce.InStore Public

    Repository for hosting the Dynamics 365 Commerce in store Samples

    TypeScript 64 41 0 0 Updated Apr 19, 2025
  • Dynamics365Commerce.Solutions Public

    Repository for hosting the Dynamics 365 Commerce end to end sample solutions

    SCSS 63 30 21 3 Updated Apr 19, 2025
  • navcontainerhelper Public

    Official Microsoft repository for BcContainerHelper, a PowerShell module, which makes it easier to work with Business Central Containers on Docker.

    PowerShell 411 MIT 250 148 (16 issues need help) 3 Updated Apr 19, 2025
  • Dynamics365Commerce.ScaleUnit Public

    Repository for hosting the Dynamics 365 Commerce ScaleUnit Samples

    PowerShell 71 73 0 0 Updated Apr 19, 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.

    C# 862 MIT 273 252 31 Updated Apr 19, 2025
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