Several TheKBase Desktop users had requested the source code for TheKBase Desktop for extension and integration into internal projects. Today that goal was finally realized, with simultaneous releases at SourceForge and Google Code. Daniel Rosenstark commented, "Making TheKBase Desktop open source is a simple way to extend our commitment to our users. The GNU GPL was chosen as a licensing option because it forces the open source option even for derivative works. We expect TheKBase 2.13 to be released with this license as well."
TheKBase Web will remain free to use, but at the present is not open source.