What is Purgecss? When you are building a website, chances are that you are using a CSS framework like Bootstrap, Materializecss, Foundation, etc... But you will only use a small set of the framework and a lot of unused CSS styles will be included.
uCSS is made for crawling (large) websites to find unused CSS selectors. Features of uCSS include: • Find unused CSS selectors, given a HTML code base. • Find duplicate CSS selectors (also when no HTML is given). • Count matches for each rule.