Justinmind Prototyper - Version 4.3 Wireframes and mockups have been used to think and define websites or applications before their implementation. But with the coming of the web 2.0, dynamic websites or RIA, you need to think everything from UI to conditional navigation or the type of interactions you want to use. But mockups or even clickable wireframes aren't enough.Justinmind Prototyper 4.0 is a powerful wireframing tool designed to build fully functional dynamic prototypes without any coding.At first glance, Justinmind Prototyper looks really powerful. It lets you create Rich Interactive Application prototypes. You can also integrate real data and simulate their behaviours through datamasters and datagrids. Ultimately, it simulates real conditional navigation (i.e. functional login pages).OK, so 'powerful' is one thing, but is it easy? Well basically, everything is done through drag and drop.