Science of the Click: Viral Thumbnail Lab
Thumbnail Lab is a professional-grade CTR auditor built on validated **UX psychology heuristics**. We simulate the human visual system's "First Pass" processing—the 100ms window where the lizard brain decides whether a thumbnail is worth conscious attention in a crowded feed.
Psychological Anchors
- • Contrast Variance & Depth Detection
- • Focal Point Dominance (Entry Point)
- • Cognitive Load & Pattern Recognition
- • Curiosity Gap (Asymmetry)
100% Client-Side Privacy
Unlike server-based AI tools, Thumbnail Lab works entirely in your browser. We process raw pixels using the Canvas API. Your creative assets never leave your machine.