Glade

            
            GTK+ User Interface Builder

Glade is a RAD tool to enable quick and easy development of userinterfaces for the GTK+ toolkit.

The user interfaces designed in Glade are stored in the well-knownXML format, enabling easy integration with external tools. You willprobably want to use it with tools such as libglade, which can loadthe XML files and create the interfaces at runtime.

This version is more modular than previous ones, so you can installmodules to add additional widgets for Glade to use.