Wro4j - Web resource optimizer library (alexo.github.com)

A tool for analysis and optimization of web resources. It brings together almost all the modern web tools: JsHint, CssLint, JsMin, Google Closure compressor, YUI Compressor, UglifyJs, Dojo Shrinksafe, Css Variables Support, JSON Compression, Less, Sass, CoffeeScript and much more.