Avalonia (software framework)

Avalonia
Developers.NET Foundation and AvaloniaUI OÜ
ReleaseDecember 5, 2013 (2013-12-05)
Stable release
12.1.2 Edit this on Wikidata / 2 September 2026
Written inC#
Operating systemWindows, Linux, macOS, iOS, Android
TypeSoftware framework
LicenseMIT License
Websitehttps://avaloniaui.net/
Repositorygithub.com/AvaloniaUI/Avalonia

Avalonia is a free and open-source .NET cross-platform XAML-based UI framework inspired by WPF/UWP and distributed under the MIT License. Avalonia supports the MVVM pattern.

It enables development of cross-platform applications using any .NET language, including C#, F# and VB.NET for Windows, Linux, macOS, iOS, Android and WebAssembly.

Avalonia supports multiple renderers, including Direct2D and Skia Graphics Engine, allowing it to operate on a broad range of platforms. Avalonia draws its entire UI, mirroring the approach taken by Flutter.