HEATKEYS

Violet is a free UML editor with these benefits : very easy to learn and use, draws nice-looking diagrams, cross-platform. Violet is intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly

Software development tools support UML, SysML, BPMN, Business Rule, ERD and mind mapping. All Visual Paradigm tool can run on Windows, Linux and Mac OSX.

Draw, share and collaborate on online diagrams. Easy web flow chart, network diagram, mockup, wireframe, UML diagrams like Class, Sequence, & data flow and process flow diagrams. Creately - free web-based software for online diagram software

Online diagram software. Create and share flowcharts, network diagrams, floorplans, user interface designs and other drawings online with the Gliffy diagram editor.

Online diagram and flowchart software. Create diagrams and drawings such as flowcharts, mind maps, network diagrams, UML diagrams, wireframes, user interface designs and other drawings online with LucidChart.

draw.io is a free online diagram drawing application for workflow, BPM, org charts, UML, ER, network diagrams

Creator of the World

Edraw is a powerful yet easy-to-use program for creating flowcharts, organizational charts, network diagrams, business presentations, building plans, mind mapping and lots more.

CollabNet, Facilitating Collaborative Software Development

GenMyModel is an UML online modeler for your class models and diagrams. Create in seconds, export your models and generate code. Try the beta.