A free C, C++ and Fortran IDE
Python module to build dialogs for terminal-based applications
Window Maker Live Linux Distribution
A Python wrapper library for the cross-platform FLTK GUI library.
Zoomable user interface (ZUI) with file manager, file viewers and more
an OSGi-based Swing Application Framework
gnoga - The GNU Omnificent GUI for Ada
Library of widgets for Motif/Lesstif.
A visual front end to git
Use Qt write lunar calendar.
An open process control and laser engraving software solution
Portable User-Interface Framework
Objective-C embedded development libraries
Tools to create and run scripts managing special kind of windows
Collection of utility functions
Web and Mobile framework
A Portable Wide-Character Terminal Output Package for C and C++
Java UI Framework for Desktop/iOS/Android