BBedit

TextWrangler is a text editor software that goes above and beyond the capabilities of its namesake. It is a commercial text editor, but it is available for free for personal use. With a wide range of features and customization options, TextWrangler is a powerful tool for programmers, web developers, and anyone who needs to edit text files. TextWrangler has a powerful code folding feature that allows you to collapse parts of your code to make it easier to read and navigate. The Mac's leading professional HTML and text editor, with high-performance features for editing, searching, and manipulating text.