Axure

Axure provides the capability to produce wireframes, prototypes, and create documentation. This tool is used by business analysts, product managers, and IT consultants around the world.

Features:
1. Axure RP generates prototype in HTML and provides link for sharing
2. It allows multiple people to work on the same file at the same time
3. It can runs on Microsoft IIS with a MySQL or Microsoft SQL Server database
4. It helps to create and maintain widget libraries

More Information and Official Website:
Download : https://www.axure.com/