Projects under the stewardship of the .NET Foundation currently include the .NET Compiler Platform ("Roslyn") as well as the ASP.NET family of projects, .NET Core, Xamarin Forms along with popular .NET open source frameworks like xUnit and Reactive Extensions. We’re actively engaged in supporting open source projects in the .NET ecosystem, you can learn more about our work or see our blog for the latest announcements.

Pick a project below to learn more about it and how to contribute:

  • Home

    The Home repository is the starting point for people to learn about ASP.NET Core.

  • EntityFrameworkCore

    Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology

  • orleans

    Orleans - Distributed Virtual Actor Model

  • Mvc

    ASP.NET Core MVC is a model view controller framework for building dynamic web sites with clean separation of concerns, including the merged MVC, Web API, and Web Pages w/ Razor.

  • SignalR

    Incredibly simple real-time web for ASP.NET Core

  • cli

    This repo contains the .NET Core command-line (CLI) tools, used for building .NET Core apps and libraries through your development flow (compiling, NuGet package management, running, testing, ...).

  • System.Drawing

    Mono open source ECMA CLI, C# and .NET implementation.

  • Prism

    Prism is a framework for building loosely coupled, maintainable, and testable XAML applications in WPF, Windows 10 UWP, and Xamarin Forms.

  • Docs

    Documentation for ASP.NET and ASP.NET Core

  • xamarin-macios

    Bridges the worlds of .NET with the native APIs of Mac, iOS, tvOS, and watchOS.

  • xamarin-android

    Xamarin.Android provides open-source bindings of the Android SDK for use with .NET managed languages such as C#

  • SkiaSharp

    The Skia 2D Graphics library from Google exposed to .NET languages and runtimes across the board

  • corert

    This repo contains CoreRT, a .NET Core runtime optimized for AOT (ahead of time compilation) scenarios, with the accompanying .NET Native compiler toolchain.

  • cake

    Cake (C# Make) is a cross platform build automation system.

  • xunit

    xUnit.net is a free, open source, community-focused unit testing tool for the .NET Framework.

  • Umbraco-CMS

    The simple, flexible and friendly ASP.NET CMS used by more than 400.000 websites

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