MockupTiger
MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application or desktop software. MockupTiger provides widgets for building quick website wireframes, mobile stencils and dashboard charts. The dashboard chart accept data so you can prototype realistic charts. It provides consistent approach that is both simple and extensible. It has a huge collection of Icons, widgets (both for Desktop and Web application) and specially crafted Dashboard Chart Widgets. Over 3000+ Icons from Material design, Font Awesome and Linea are packaged as widgets that can be used for building wireframes. All the icons can be simply dragged and just works like any other widget. There is no obtrusive dialog boxes that you need to pick an icon.