Moved to GitHub: https://github.com/takezoe/amateras-modeler AmaterasUML is an Eclipse plug-in for drawing UML class-diagram, and UML sequence-diagram. Class diagram License Eclipse Public License 1.0 Download AmaterasUML works with Eclipse 3.3 or later(not support Eclipse 3.2), and it also requires JDT and GEF. Please download AmaterasUML_x.x.x.zip from here. Unzip that and put all jar files into