1.AvaloniaUI / Avalonia
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI
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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.
Cross platform GUI framework for desktop and mobile applications in .NET
WPF is a .NET Core UI framework for building Windows desktop applications.
A cross-platform UI toolkit for creating desktop applications with .NET and Mono