PlantUML

Dia is a GTK+ based diagram creation program for Linux, Unix and Windows released under the GPL license. Dia is roughly inspired by the commercial Windows program 'Visio', though more …

yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just …

Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of …

Creately makes diagramming and design easy. We do this with an access anywhere, online application that is purpose built for collaboration. Creately allows teams to solve problems and collaborate visually. …

Umbrello UML Modeller is a Unified Modelling Language diagram programme for KDE. UML allows you to create diagrams of software and other systems in a standard format.

Browser based Chart and Diagram tool. Requires sign up. Free account allows one diagram to be saved. Very easy to use, professional looking. Main advantage is that diagrams can be …

Calligra Flow (formerly Kivio) is an easy to use diagramming and flowcharting application with tight integration to the other Calligra applications. It enables you to create network diagrams, organisation...

The GoVisual Diagram editor (GDE) provides powerful functionality for editing and automatic layout of diagrams. Diagrams are represented in form of graphs and cluster graphs. GDE contains all the layout …

Whether you are a Business Architect, System Architect, Developer, Analyst or Designer, Modeliosoft meets your needs through its high quality solutions for modeling, and report, architecture or code...