Qt is described as 'Cross-platform application framework that is widely used for developing application software that can be run on various software and hardware platforms with little or no change in the underlying codebase, while having the power and speed of native applications' and is a very popular software framework in the development category. There are more than 50 alternatives to Qt for a variety of platforms, including Windows, Linux, Mac, Android and Self-Hosted apps. The best Qt alternative is GTK, which is both free and Open Source. Other great apps like Qt are Flutter, Electron, React and React Native.
Uno is the platform for building native mobile, desktop and WebAssembly apps with C#, XAML from single codebase. It's a Universal Windows Platform Bridge that allows UWP-based code (C# and XAML) to run on iOS, Android, and WebAssembly.
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A modern, cross-platform UI framework for Rust that renders to native platform widgets (UIKit/AppKit on Apple, Android View on Android) rather than drawing its own pixels. Build reactive, declarative UIs with Rust's type safety and performance.
OpenJFX is an open source, next generation client application platform for desktop, mobile and embedded systems built on Java.
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wxPython is a GUI toolkit for the Python programming language. It allows Python programmers to create programs with a robust, highly functional graphical user interface, simply and easily. It is implemented as a Python extension module (native code) that wraps the popular...
The Appcelerator platform is everything you need to create great, native mobile apps—all from a single JavaScript code base.
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JUCE is a wide-ranging C++ class library for building rich cross-platform applications and plugins for all the major operating systems.
Codename One is an open-source Java framework for building mobile, desktop, web and watch apps from one codebase. It compiles mobile apps to native binaries and custom-renders the UI for consistent behavior across platforms. Developers can call native platform APIs when needed.
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Dear ImGui is a bloat-free graphical user interface library for C++. It outputs optimized vertex buffers that you can render anytime in your 3D-pipeline enabled application. It is fast, portable, renderer agnostic and self-contained (no external dependencies).
Lightweight and modular C++11/C++14 graphics middleware for games and data visualization.
Elements C++ GUI is a modern C++ (esp. C++14 and C++17) UI library. Featuring resolution independence and HDPI support, with modularity as another focal point, the library is made for general purpose use while also covering everything needed for audio plugin development.
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NoesisGUI is a User Interface middleware for videogames and realtime applications:
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PyGObject is a Python package which provides bindings for GObject based libraries such as GTK, GStreamer, WebKitGTK, GLib, GIO and many more.
