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A multi-platform .NET UI framework
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Gitter Chat Build Status (Win, Linux, OSX) Open Collective NuGet MyGet
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Avalonia is a WPF-inspired cross-platform XAML-based UI framework providing a flexible styling system and supporting a wide range of OSs: Windows (.NET Framework, .NET Core), Linux (GTK), MacOS, Android and iOS.

Avalonia is currently in beta which means that the framework is generally usable for writing applications, but there may be some bugs and breaking changes as we continue development.

Control catalog Desktop platforms Mobile platforms

Getting Started

Avalonia Visual Studio Extension contains project and control templates that will help you get started. After installing it, open "New Project" dialog in Visual Studio, choose "Avalonia" in "Visual C#" section, select "Avalonia .NET Core Application" and press OK (screenshot). Now you can write code and markup that will work on multiple platforms!

For those without Visual Studio, starter guide for .NET Core CLI can be found here.

Avalonia is delivered via NuGet package manager. You can find the packages here: (stable(ish), nightly)

Use these commands in Package Manager console to install Avalonia manually:

Install-Package Avalonia
Install-Package Avalonia.Desktop

Bleeding Edge Builds

Try out the latest build of Avalonia available for download here:

or use nightly build feeds as described here:


As mentioned above, Avalonia is still in beta and as such there's not much documentation yet. You can take a look at the getting started page for an overview of how to get started but probably the best thing to do for now is to already know a little bit about WPF/Silverlight/UWP/XAML and ask questions in our Gitter room.

There's also a high-level architecture document that is currently a little bit out of date, and I've also started writing blog posts on Avalonia at

Contributions are always welcome!

Building and Using

See the build instructions here.


Please read the contribution guidelines before submitting a pull request.


This project exists thanks to all the people who contribute. [Contribute].


Thank you to all our backers! 🙏 [Become a backer]


Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]

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