Code highlighting for Keynote presentations
Command line synatx highlight to clipboard and then you can paste it directly into Keynote.
#syntaxhighlighting
CodeMirror
CodeMirror is a JavaScript component that provides a code editor in the browser. When a mode is available for the language you are coding in, it will color your code, and optionally help with indentation.
Solarized
Beautiful color palettes for text editors, shell etc.
EditArea
“This editor is designed to edit souce code files in a textarea. The main goal is to allow text formatting, search and replace and real-time syntax highlight (for not too heavy text).”