GenealogyJ is a viewer and editor for genealogic data, suitable for hobbyist, family historian and genealogy researcher. GenJ supports the Gedcom standard, is written in Java and offers many views like family tree, table, timeline, geography and more.
GenealogyJ is a totally free program, but has extremely limited use. It does not allow flexible relationships in families, is poorly designed, and awkward. It does make a lots of graphs and even a complete website, but not very impressive ones. I rate it only 4 out of 10 stars … but I give it 2 of those stars just because it is free complete genealogy program.
One of the worst UIs I have ever encountered. Poorly thought out, exceedingly difficult to do the simplest tasks. Uninstalled and moved on to better software.