wxMEdit, Cross-platform Text/Hex Editor, Improved Version of MadEdit
Another drawing editor for LaTeX with PSTricks & TikZ
A version of CHORD4 updated to cooperate with ChordSmith.
A hex editor Eclipse plugin and multi-platform desktop application
Light-weight Scintilla-based text editor with syntax highlighting
a tool to learn about Chinese (and Japanese) characters
Text Editor for Casio calculator Fx-9860G series