Prefuse is a Java-based toolkit for building interactive information visualization applications. It was developed until 2007 by its original author, Jeffrey Heer. Prefuse is licensed under the terms of a BSD license and can be freely used for both commercial and non-commercial purposes. The original website is at prefuse.org. This project at GitHub is a fork by Hanns Holger Rutz which aims at providing easy maven access for several projects which depend on Prefuse. All changes are released under the same original license.