uCSS

Find unused and duplicate CSS

Free • Open Source

Self-Hosted
CSS

What is uCSS?

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. • Follows links (crawl), within the given domain. • Give information about server responses, redirects, etc. while crawling, allowing you to find e.g. dead links.

By setting up a config file, uCSS can also:

• Do login, and visit pages both as a logged in and logged out user. • Exclude specific pages and/or subfolders. • Visit specific pages instead of, or in addition to, crawling. • White list CSS rules to be ignored (e.g. those toggled by JavaScript). Customizable output. uCSS is written for Node. It can be used both as a library and as a command line tool.

Please note: uCSS is currently in beta. There will be bugs, docs may be outdated, and functionality may change.

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