Apps with 'Website wireframing' feature
diagrams.net (previously draw.io) is a free online diagram drawing application for workflow, BPM, org charts, UML, ER, network diagrams.
A cross-platform vector graphics tool, runs as desktop application and in-browser too.
Visual Paradigm for UML (VP-UML) is a UML design tool and UML CASE tool designed to aid software development.
An online diagramming tool with built-in productivity features to create diagrams faster. Draw flowcharts, mind maps, org charts, network diagrams, Venn diagrams and 50+ other diagrams types. Readymade templates to get started fast.
SuperSaaS caters to all types of scheduling needs from individual meeting scheduling, class scheduling, resource scheduling to service scheduling with multiple connected calendars.