wxWidgets

wxWidgets: Cross-Platform GUI Library

18 Alternatives To wxWidgets

Agar

Agar GUI

Avalonia

A multi-platform .NET UI framework

Electron

Build cross platform desktop apps with web technologies

FLTK

Fast Light Toolkit - Fast Light Toolkit (FLTK)

Flutter by Google

Build beautiful native apps in record time 🚀
images/2020/04/Fox-toolkit.png}}

Fox toolkit

fox-toolkit.org
images/2020/04/GTK.png}}

GTK

GTK+ is a multi-platform toolkit for creating graphical user interfaces.

JUCE

JUCE is a wide-ranging C++ class library for building rich cross-platform applications and plugins…
images/2020/04/JavaFX.png}}

JavaFX

JavaFX is the next step in the evolution of Java as a rich client platform.

Lara

Lara Web Engine is a C# Web UI framework supporting web component development and reactive programming. - integrativesoft/lara

Nana C Library

Nana C++ Library - a modern C++ GUI library

PySide

Qt for Python - Qt Wiki

Qt

C++
images/2020/03/qt-creator.jpg}}

Qt Creator

Qt Creator is a cross-platform C++, JavaScript and QML integrated development environment. It is the fastest, easiest and most fun experience a C++ developer could wish for.

Quasar Framework

SPA front-end on steroids.
images/2020/03/react-native.png}}

React Native

A framework for building native apps with React
images/2020/03/unity.jpg}}

Unity

The multiplatform game creation tools for everyone.