iNotepad - Write and organize all your texts and notes on Mac.
Jetico BCTextEncoder - Jetico BCTextEncoder is software that ensures your text-based communications are safe by allowing you to encrypt them.
HTML-Notepad - HTML WYSIWYG editor for structured documents
TheLetterEncrypter - TheLetterEncrypter is a small (14KB download) AES-based text-encryption program.
Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++
GizmoMarks - GizmoMarks is software that provides secure block-notes by encrypting them in a way that nobody can understand.