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A multi-platform .NET UI framework
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grokys Merge pull request #2385 from OronDF343/patch-1
Add support for ConverterParameter and StringFormat to MultiBinding
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.github Update PR template Feb 9, 2019
native/Avalonia.Native #2061 fix start minimized bug Dec 16, 2018
packages/Avalonia EmbedReference is not needed anymore Dec 6, 2018
samples Fixed compilation Mar 12, 2019
src Merge branch 'master' into patch-1 Mar 22, 2019
tests Added MultiBinding.StringFormat + Relevant unit tests Mar 22, 2019
.editorconfig Fix ternary operator formatting, add config entry to the .editorconfig. Mar 7, 2019
Avalonia.sln Added Avalonia.ReactiveUI.UnitTests to solution. Jan 25, 2019
Avalonia.v3.ncrunchsolution Make ncrunch run again. Jan 16, 2019
azure-pipelines.yml temporary allow pr build to publish Jan 12, 2019
build.ps1 Switched build to Nuke Dec 1, 2018 Switched build to Nuke Dec 1, 2018
dirs.proj Fix package versions. Oct 28, 2018
global.json Updated MSBuild.Sdk.Extras version. Jan 12, 2019 Added Dec 9, 2014 Update Jan 18, 2019


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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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