Jalopy is a source code formatter/beautifier/pretty printer for the Java programming language. It is aimed to provide a full-featured, yet free alternative to the well-known Jindent. Plug-ins for Ant, Eclipse, IDEA, JBuilder, JDeveloper, jEdit, NetBeans.
EPIC is an open source Perl IDE for the Eclipse platform. Features supported are syntax highlighting, on the fly syntax check, content assist, perldoc support, source formatter, templating support, regular expression plugin and a Perl debugger.
PHP - Support for the Eclipse IDE Framework ( www.eclipse.org ). Some Features are PHP parser, debugger, code formatter, outline view, templates...(Programming Language: Java)