CSS Sprite Generator : This tool allows you to automate the process of generating CSS sprites. Simply give it a ZIP file containing 2 or more images (GIF, PNG or JPG) and it...
Compass : Compass is an open-source CSS Authoring Framework.
* { CSS:resetr } : To help you find the perfect CSS-reset styles, CSSresetr lets you try all the best CSS Resets on a variety of web pages – even your own.
PurgeCSS : PurgeCSS is a tool to remove unused CSS. It can be part of your development workflow.