| JMeld | This program http://sourceforge.net/projects/jmeld/ License: LGPL |
| Eclipse | The default diff engine http://www.eclipse.org/ License: Eclipse public license v1.0 |
| Ant | The file filters have been taken out of the ant program http://ant.apache.org/ License: Apache License V2.0 |
| SwingX | Library which contains swing treetable http://swingx.dev.java.net/ License: LGPL |
| Jide | Library that provides a closable/scrollable tabbedpane http://www.jidesoft.com/products/oss.htm License: GPLV2 with classpath exception |
| JavaHelp | Library that contains the java help system http://javahelp.dev.java.net/ License: GPLV2 with classpath exception |
| l2fprod | Library that contains swing fontchooser http://www.l2fprod.com/common/ License: Apache License V2.0 |
| Looks | Library to set the default look and feel http://www.jgoodies.com/freeware/looks/ License: BSD |
| Forms | Library that contains the FormLayout http://www.jgoodies.com/freeware/forms/ License: BSD |
| Swing-layout | Library that contains a matisse layout manager http://swing-layout.dev.java.net/ License: LGPL |
| Swing-worker | Library that contains a the SwingWorker http://swing-worker.dev.java.net/ License: LGPL |
| ICU4J | Library to determine the file encoding http://www.icu-project.org/index.html License: ICU 1.8.1 and later |
| mime-util | Library to get the mime type of a file http://sourceforge.net/projects/mime-util/ License: Apache License V2.0 |
| jrcs | A diff engine (not used anymore) License: Apache License V2.0 |
| diff | A gnu diff engine (not used anymore) License: GPL |