Avalonia topic
Avalonia supports Windows, Linux and OSX with experimental mobile support for Android and iOS. Avalonia uses a XAML dialect that should feel immediately familiar to anyone coming from WPF, UWP and Xamarin Forms.
fvim
Cross platform Neovim front-end UI, built with F# + Avalonia
AvaloniaProgressRing
A progress ring for Avalonia -- based on ModernWPF's ProgressRing.
LiveCharts2
Simple, flexible, interactive & powerful charts, maps and gauges for .Net, LiveCharts2 can now practically run everywhere Maui, Uno Platform, Blazor-wasm, WPF, WinForms, Xamarin, Avalonia, WinUI, UWP.
AvaloniaRider
JetBrains Rider plugin for Avalonia development
DependencyPropertyGenerator
Dependency property, routed event and weak event source generator for WPF/UWP/WinUI/Uno/Avalonia/MAUI platforms.
Pororoca
An HTTP inspection tool with support for HTTP/2 and HTTP/3. Alternative to Postman.
Avalonia.Xaml.Behaviors
Port of Windows UWP Xaml Behaviors for Avalonia Xaml.
AvalonStudio
Cross platform IDE and Shell
roslynpad
A cross-platform C# editor based on Roslyn and AvalonEdit