Gliffy

Gliffy is software for diagramming via an HTML5 cloud-based app. It is used to create UML diagrams, floor plans, Venn diagrams, flowcharts and various other kinds of diagrams online. Gliffy diagrams can be shared with and edited by users in real time. The SaaS is supported in all modern web-browsers, including Google Chrome, Firefox, Safari and Internet Explorer 9+.

Gliffy's developer, the self-funded company Gliffy, Inc., was acquired by Rogue Wave Software in October 2018, and Rogue Wave was subsequently acquired by Perforce Software in January 2019.