GTK Alternatives

Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.

wxWidgets: Cross-Platform GUI Library

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

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Riverbank | Software | PyQt | What is PyQt?

Build cross platform desktop apps with web technologies

Fast Light Toolkit - Fast Light Toolkit (FLTK)

A multi-platform .NET UI framework

Open source Python framework for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps. Installation on WindowsInstallation on Windows. Installation; What are wheels .

Build beautiful native apps in record time 🚀

Qt for Python - Qt Wiki

A simple to use GUI that can create custom GUIs

Build Mobile, Desktop and WebAssembly apps with C# and XAML.

Dear PyGui is a simple to use (but powerful) Python GUI framework. Dear PyGui provides a wrapping of Dear ImGui which simulates a traditional retained mode GUI (as opposed to Dear ImGui's immediate mode paradigm).

A drag and drop GUI Designer that uses a combination of Tkinter and its own code.