WireframeSketcher is a software tool that helps product managers, designers, and developers quickly create wireframes, mockups, and prototypes for desktop, Web, and mobile applications. Itís a standalone application and a plug-in for any Eclipse IDE.
This version adds a free wireframe sharing service that lets you easily put your work online, then share it with your team or clients and get useful feedback. Other changes include minor improvements and bugfixes.
URL: Wireframing Tool for Professionals - WireframeSketcher