1. Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.

  2. The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project

  3. The prototyping and specification software used by 87% of the Fortune 100. Beyond mockups, design interactive prototypes for business solutions, websites, and applications.

  4. Design is really about solving problems. UXPin is the UX Design Platform that gets that right.

  5. Fluid UI helps you prototype Android, iPhone, iPad or Windows 8 mobile apps with our custom libraries, or upload your own images for pixel perfect mobile

  6. Principle makes it easy to create animated and interactive user interface designs.

  7. OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.

  8. Using Balsamiq Mockups feels like you are drawing, but its digital, so you can tweak and rearrange...

  9. Gliffy is a powerful HTML5 online diagram maker. Create a flow chart, network diagram, UML diagram, organizational chart or wireframe with ease.

  10. WireframeSketcher is a wireframing tool for creating wireframes, mockups and prototypes for desktop, web and mobile apps. It's a desktop app for Mac, Windows and Linux, and a plug-in for any Eclipse IDE.

  11. The fastest way to design beautiful interactions