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.

CollabNet, Facilitating Collaborative Software Development

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.

Modeling languages and UML portal, covering information and services about UML, Model-driven development, OCL,...

KDE Homepage, KDE.org

Altova XMLSpy XML editor, plus other leading XML, data management, UML, and Web services software tools for application, web site, and database development, data conversion, and more.

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

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

Eclipse Marketplace offers the Eclipse community a convenient, information-rich portal that helps software developers find open source and commercial Eclipse plugins, tools, and products that enhance the entire software development life-cycle.