01 — YouTube Thumbnail Prompts
Grade your thumbnail prompt.
Get more clicks.
Your thumbnail is the first thing viewers see. Grade your AI prompt before generating — stop wasting credits on thumbnails that don't convert.
02 — Before & After
Before28/100
youtube thumbnail of a guy shocked
After91/100
Close-up portrait of a young man with an exaggerated shocked expression, mouth wide open, eyes bulging. Vibrant teal background with subtle radial glow. Dramatic side lighting casting sharp shadows. Cinematic color grading with boosted saturation. 16:9 aspect ratio, right third empty for text overlay. Hyper-detailed skin texture, studio quality.
Same intent, +63 points. Structure and specificity make the difference.
03 — Thumbnail Prompt Checklist
- 1.Subject + emotion — Who/what appears, and what expression or gesture?
- 2.Framing — Close-up or medium shot. 16:9 aspect ratio. Space for text overlay.
- 3.Color & contrast — Bold, saturated colors. Clean or gradient background.
- 4.Lighting — Dramatic, directional. Side-light or rim-light for depth.
- 5.Style — Cinematic, editorial, pop-art, or photorealistic. Name it explicitly.
04 — Grade Your Prompt
02 — Input
0/2000
Cmd+Enter to grade