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Rapid Interface Builder

Rapid Interface Builder (RIB) is a browser-based design tool to quickly prototype and create the user interface for web applications. It supports UI design by dropping widgets onto a canvas, running the UI in an interactive "Preview mode" and then exporting the generated HTML5 and Javascript.

Rapid Interface Builder (RIB) is an easy tool to use.  This Getting Started section describes how to download RIB or access it online.   It covers the basic features, widgets, and coding tips.  The best way to learn, though, is to try it.