A CSS redundancy analyzer that analyzes redundancy.
Gives you output like:
{.contact .content .primary} and {article, #comments} share 5 rules
If you have multiple selectors sharing five or more rules (properties with the same value), that’s likely a good opportunity for optimization (combine into new class or comma separate selectors elsewhere).
Someone should make a hosted version where you just drag-and-drop a .css file to analyze.
