"Balsamiq Mockups is a rapid wireframing tool that helps you work faster & smarter. It reproduces the experience of sketching on a whiteboard, but using a computer."

The first impression might be disorienting. There are very few interface elements on the screen. Start exploring however, and you'll find out that Mockups is filled with powerful yet only visible when you need them features. Getting your ideas out should be effortless. We sweat the details so the app gets out of your way, instead of forcing you to learn it. You won't see many dialog windows interrupting your flow, and you won't have to twiddle with options all the time.

Mockups really shines during the early stages of designing a new interface. Mockups is zenware, meaning that it will help you get "in the zone," and stay there. Our aim is for you to forget our software is there at all. Mockups offers the same speed and rough feel as sketching with pencil, with the advantage of the digital medium: drag & drop to resize and rearrange elements, make changes without starting over, and your work is clear enough that you'll make sense of them later.