1.AvaloniaUI / Avalonia
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI
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6 repositories by Attention Score · Aug 7, 2026 – Nov 4, 2026 (UTC)
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI
Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.
WPF is a .NET Core UI framework for building Windows desktop applications.
Cross platform GUI framework for desktop and mobile applications in .NET
A cross-platform UI toolkit for creating desktop applications with .NET and Mono
Gtk# is a Mono/.NET binding to the cross platform Gtk+ GUI toolkit and the foundation of most GUI apps built with Mono