Diet Coda takes everything we’ve ever learned about world-class web code editing, and wraps it up to-go. It’s packed with features, bathed in fun, ready to work.
Emmet takes the snippets idea to a whole new level: you can type CSS-like expressions that can be dynamically parsed, and produce output depending on what you type in the abbreviation. Emmet is developed and optimised for web-developers whose workflow depends on HTML/XML and CSS, but can be used with programming languages too