GTK

Qt

qt/qtbase

Popular

Mature C++/QML cross-platform application framework, dominant in embedded, automotive and pro desktop apps.

Flutter

flutter/flutter

Popular

Google's UI toolkit for building natively compiled iOS, Android, web and desktop apps from one Dart codebase.

Avalonia

AvaloniaUI/Avalonia

Rising

Cross-platform XAML UI framework for .NET, widely seen as the spiritual successor to WPF.

Compose Multiplatform

JetBrains/compose-multiplatform

Rising

JetBrains' declarative UI framework bringing Jetpack Compose to iOS, desktop and web; iOS stable since 2025.

.NET MAUI

dotnet/maui

Microsoft's cross-platform UI framework for iOS, Android, macOS and Windows apps in C# and XAML; Xamarin's successor.

Uno Platform

unoplatform/uno

Single-codebase .NET apps for Windows, macOS, Linux, iOS, Android and WebAssembly using WinUI APIs.

WinUI 3

microsoft/microsoft-ui-xaml

Microsoft's modern native UI framework for Windows apps, shipped via the Windows App SDK.

WPF

dotnet/wpf

Legacy

Mature .NET UI framework for Windows desktop; still common in enterprise line-of-business software.

Slint

slint-ui/slint

Trending (detected automatically)Rising

Declarative UI toolkit for Rust, C++, JavaScript and Python targeting desktop and embedded devices.