jEdit is a programmer's text editor written in Java.
Save time and effort of converting into Unicode through native2ascii
MadEdit-Mod is a cross platform Text/Hex editor based on MadEdit
A hex editor Eclipse plugin and multi-platform desktop application
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
CodeLite: an open source, cross platform C/C++/PHP and JavaScript IDE
Vim-like editing in Eclipse
VTL (Velocity Template Language) edit support for the NetBeans IDE.