TextWrangler

TextWrangler is the powerful general purpose text editor, and Unix and server administrator's tool. Oh, and also, like the best things in life, it's free. TextWrangler is the "little brother" to BBEdit, a leading professional HTML and text editor. Features General-purpose text editor Programmer's text editor Unix and server administrator's tool Powerful text transformer and manipulator Good Mac OS citizen Powerfully useful tool Product developed in the best traditions of Bare Bones Software, with high performance, ease of use, a rich feature set, and the ability to read its own release notes