AI Test
Instant diagnosis of your thumbnail at real mobile feed size (168×94). Objective, explainable signals — no audience required.
Drop your thumbnail here
PNG, JPG or WebP · Max 50 MB · Ideal 1920×1080
Feed size preview
168×94
~90% of CTR is won at this size on mobile. Design for this, not fullscreen.
Your diagnosis will appear here
Scores are explainable — every number includes a why. Demo heuristics until the vision pipeline ships.