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A fast and reliable tool, written in Java 8, for generating professional UML sequence diagrams from text. Supports actors, con-/destructors, threads, broadcasts, notes, and fragments. Can serve as a Javadoc taglet. Exports PDF, (E)PS, SVG, PNG, ...
The source code is hosted at http://github.com/sdedit/sdedit
Very simple entities relation attributes tool with export
I was tired of the wayward UML tools to explain some simple ideas and share with my colleagues, I created this tool to create simple schema simply. Not perfect but do the job.