What is clean-css-standalone?
Clean-css-standalone is (obviously) a standalone version of clean-css node.js library.
That is all you need to do is to grab clean-css.js file and put it somewhere in your project. The only dependency is node.js itself.
How to use it?
node path/to/clean-css.js -h
See the clean-css repository for examples (remember to replace 'cleancss' with 'node clean-css.js').
Clean-css is released under the MIT license.