Three thumbnails. One click winner. With the score to prove it.
Get three distinct variations — each audited and scored for click-through before you publish. Ship the one with proof, not hope. No design skills needed.
7-day free trial · Cancel anytime
Meanwhile…
$40k MRR captured and counting.
$40k MRR · growing every month
Audit any thumbnail. Free.
Drop in your own thumbnail — or a competitor's — and get a click-through score, attention heatmap, and a suggested text overlay in seconds. No signup, no generation required. See exactly why it will or won't get the click.
Your CTR score, attention heatmap, and improvement list appear here.
Generate. Audit. Ship.
Type a video title, pick a genre, and the engine renders three distinct, fail-closed-guarded variations in one pass. Choose the strongest, then run a live CTR audit — attention heatmaps, strengths, and a suggested text overlay, in seconds.
Three variations appear here. Enter a title and hit generate to begin — then pick the strongest.
Proof, measured in clicks.
Real thumbnails rendered on the platform, paired with their lift in click-through rate. Hover any frame to peel back the prompt wireframe behind it.
Neon rim-lit gamer silhouette, magenta-cyan, deep shadows
Gold data charts rising, navy-gold palette, growth symbolism
Golden hour, expressive creator pointing, vibrant clean
Explosive key art, rule-of-thirds subject, negative space
Confident pro silhouette, high contrast, wealth cue
Warm aspirational, shallow depth of field, inviting
Neon rim-lit gamer silhouette, magenta-cyan, deep shadows
Gold data charts rising, navy-gold palette, growth symbolism
Golden hour, expressive creator pointing, vibrant clean
Explosive key art, rule-of-thirds subject, negative space
Confident pro silhouette, high contrast, wealth cue
Warm aspirational, shallow depth of field, inviting
A rendering engine,
not a slot machine.
Most AI tools hand you a dice roll. ThumbnailAICreator runs a deterministic, fail-closed pipeline: composition is fixed, output is validated, and every frame is audited before it reaches your channel.
Deterministic rendering
Every render follows a fixed composition pipeline — same prompt, same structural output. No chaotic re-rolls, no surprise layouts.
Fail-closed by design
If a render can't meet contrast and focal-point thresholds, it returns a safe fallback — never a broken or unreadable frame.
Attention heatmaps
Each thumbnail is audited for where the eye actually lands, so you can tune focal weight before you publish.
Live CTR scoring
A 0–100 click-through estimate backed by composition, contrast, and genre-appropriateness signals.
Genre-aware presets
Gaming, finance, tech, lifestyle, education and entertainment — each with its own lighting and color DNA.
WCAG 2.2 AA contrast
Acid-citron on obsidian hits 13.5:1. Every label keeps a minimum 4.5:1 against its surface.
Pick your velocity.
Start free and audit your first thumbnails. Upgrade when you're ready to render at scale.
Starter
Test the engine.
- 10 renders / month
- Basic CTR audit
- 3 genre presets
- Watermark-free
Pro
For serious creators.
- Unlimited renders
- Full attention heatmaps
- All 6 genre presets
- Audit history
- Priority render queue
Studio
For teams & agencies.
- Everything in Pro
- 5 team seats
- Brand kit presets
- Bulk audit export
- API access