Hey Product Hunt — I built CatchUI because I kept having the same gap: I could recognize a useful interface pattern without knowing what to call it. The first version was a searchable catalog. The product clicked when I connected that catalog to screenshots: upload an interface, identify recognizable patterns, then save the useful ones as cards and review them until the vocabulary sticks. It’s aimed at design students, career-switchers, PMs, and developers who are tired of saying “the thing that slides up from the bottom.” A few honest notes: • You can try a sample without signing up. • Real scans use model-assisted recognition, so occasional mistakes are possible. • The 28-pattern catalog and teaching content are curated by hand. • CatchUI is fully bilingual in English and Chinese. I’d especially value feedback on two things: does the scan-to-card flow teach you something useful, and is “build your UI vocabulary” the right framing?

CatchUI

Learn the UI patterns hiding in any screenshot

Learn the UI patterns hiding in any screenshot