WhatWeb : WhatWeb identifies websites. Its goal is to answer the question, “What is that Website?”. WhatWeb recognises web technologies including content manage...
UnCSS : UnCSS is a tool that removes unused CSS from your stylesheets. It works across multiple files and supports Javascript-injected CSS.
PurgeCSS : PurgeCSS is a tool to remove unused CSS. It can be part of your development workflow.
CSS Lint : CSS Lint points out problems with your CSS code. It does basic syntax checking as well as applying a set of rules to the code that look for problemati...
csscss will parse any CSS files you give it and let you know which rulesets have duplicated declarations.
