Prepros - Compile Less, Sass, Scss, Stylus, Jade, Coffeescript, Haml and Markdown with live browser refresh.
CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.
Compass CSS - Compass is an open-source CSS Authoring Framework.
Scout-App - Process Sass files into CSS without any knowledge of the command line.
Squeezer - Minify, Compile and Compress your Web sources & images. On Mac. With a single click.
Live.js - Live. js. one script closer to designing in the browser. Say goodbye to Alt-Tab. Live.