Foley
Paste a URL. Get every CSS transition and animation on the page: what moves, how long, with what easing, and which of those choices are measurably wrong.
No account, no AI, no install. Usually under a minute.
Or read one already done
What a finding looks like
17 distinct easing curves. cubic-bezier(0,0,0.58,1), cubic-bezier(0.42,0,0.58,1), cubic-bezier(0.25,0.1,0.25,1), linear, steps(1,end), cubic-bezier(0.16,1,0.3,1), cubic-bezier(0.9,0,0.1,1) and ten more. Most design systems need two or three.
Every finding names the selectors and values it is talking about. Foley reads CSS transitions and @keyframes; motion driven from JavaScript is outside what these rules can see, and a report says so when it detects a library.