Aquamacs (Free) A user-friendly version of the famous Emacs text editor, it combines the Mac functionality with the ergonomics and extensibility of the features of Emac into one single editor. It boasts a range of proportional and mono-spaced fonts, and basically a standard Mac interface with the functionality of a text editor. For the main text editor, UltraEdit is well-known for being speedy and customizable, with nice-looking themes to make things easier for you. Features: Text editor, code editor (both general and specific), sync/share and other cloud services, search on FTP servers. Pricing: $99.95/yr with all access. Website: UltraEdit.
Convert rich text documents to other formats
With TextEdit, you can open and edit rich text documents created in other word processing apps, including Microsoft Word and OpenOffice. You can also save your documents in a different format, so they’re compatible with other apps.
Create and edit HTML documents
You don’t need a special app to write or edit HTML code—just use TextEdit. You can display HTML documents like you’d see them in a browser, or use TextEdit as a code editor.
Mark up images
Simple Text Editor Mac
You can write or draw on images in your text files using the tools in the Markup toolbar.
Free Html Text Editor
To explore the TextEdit User Guide, click Table of Contents at the top of the page, or enter a word or phrase in the search field.