UML Designer - UML Designer provides a set of common diagrams to work with UML 2.5 models.
Google Charts - Interactive charts for browsers and mobile devices.
Diagramo - Diagramo is an online flowchart software - diagrams (create, edit and share)
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application
ARIS Express - ARIS Express is based on the proven ARIS methodology and industry standards.
ZingChart - ZingChart is a fast, modern, powerful JavaScript charting library for building animated, interactive charts and graphs. Bring on the big data!