UXToolbox

UXToolbox is an Wireframing and Application Prototyping solution. Designed for beginners and experts alike, UXToolbox has all the tools and features you need to create great looking and fully functional Wireframes and Mock-ups all within one easy-to-use solution.

It has all the features that you would expect from a great Wireframing Tool: an intuitive and easy-to-use interface, a large range of customisable controls and UI Elements, freedom to design for different device types, built-in support for annotation and documentation.