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SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

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

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.

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

Java Forums - where learning and development begins

CollabNet, Facilitating Collaborative Software Development

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.

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.