Qt

Qt is a 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...

Free Open Source Mac OS X Windows Linux BSD Mac

GTK+

GTK+ is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK+ is suitable for projects ranging from small one-off tools to complete application suites.

Free Open Source Mac OS X Windows Linux

PyQt

PyQt is a set of Python bindings for Nokia's Qt application framework and runs on all platforms supported by Qt including Windows, MacOS/X and Linux.

Free Open Source Mac OS X Windows Linux

wxPython

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...

Free Open Source Mac OS X Windows Linux

JavaFX

JavaFX is the next step in the evolution of Java as a rich client platform. It is designed to provide a lightweight, hardware-accelerated Java UI platform for enterprise...

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PySide

The PySide project provides LGPL-licensed Python bindings for the Qt cross-platform application and UI framework. PySide Qt bindings allow both free open source and...

Free Open Source Mac OS X Windows Linux

Nana C++ Library

Nana C++ Library takes aim at easy-to-use and portable library, it provides a GUI framework and threads for easy programming with modern C++ methods, such as traits...

Free Open Source Windows Linux

TK

Tk is a free and open-source, cross-platform widget toolkit that provides a library of basic elements of GUI widgets for building a graphical user interface (GUI) in...

Free Open Source Mac OS X Windows Linux BSD

FLTK

The Fast, Light Toolkit (FLTK, pronounced fulltick) is a cross-platform graphical user interface (GUI) library developed by Bill Spitzak and others. Made to accommodate...

Free Open Source Mac OS X Windows Linux

JUCE

JUCE is a wide-ranging C++ class library for building rich cross-platform applications and plugins for all the major operating systems.

Free Personal Mac OS X Windows Linux

wxSVG

wxSVG is C++ library to create, manipulate and render SVG files.

Free Open Source Mac OS X Windows Linux

Agar

Agar is a modern open-source, cross-platform toolkit for graphical applications implemented in C, C++ and Ada (with bindings to other languages in development). Designed...

Free Open Source Windows Linux BSD

gtkmm

gtkmm is the official C++ interface for the popular GUI library GTK+. Highlights include typesafe callbacks, and a comprehensive set of widgets that are easily...

Free Open Source Mac OS X Windows Linux

Standard Widget Toolkit

SWT is an open source widget toolkit for Java designed to provide efficient, portable access to the user-interface facilities of the operating systems on which it is...

Free Open Source Mac OS X Windows Linux BSD

IUP Portable User Interface

IUP is a multi-platform toolkit for building graphical user interfaces. It offers a simple API in three basic languages: C, Lua and LED. IUP's purpose is to allow a...

Free Open Source Mac OS X Windows Linux

PyGTK

PyGTK lets you to easily create programs with a graphical user interface using the Python programming language. The underlying GTK+ library provides all kind of visual...

Free Open Source Mac OS X Windows Linux GTK+