The thumbnail
that makes them click.
Describe your video. ThumbLab generates a high-CTR thumbnail in under 30 seconds.
Used by +120 creators during V1
Drag to see the difference.
Three things no other tool does.
We built the SaaS we wished existed when we were creators ourselves.
Under 30 seconds.
From prompt to final thumbnail. No Photoshop, no designer. You describe, ThumbLab delivers.
CTR-optimized.
Every thumbnail is trained on patterns that actually perform on YouTube — not generic AI output.
Consistent style.
The AI adapts to the visual codes that work on your channel. Your thumbnails keep a recognizable signature.
Three steps. Zero friction.
Describe your video.
A single sentence is enough. ThumbLab understands the angle, emotion, format.
AI generates 4 variants.
Framing, typography, palette, focal accent — tuned to the patterns that hit.
A+218%
B+184%
C+143%
D+167%Publish. Measure.
Pick your format, export, native A/B testing and YouTube Studio integration.
Four variants. One winner.
ThumbLab always generates multiple angles per prompt. They're tested in parallel — we keep the one that performs, without you thinking about it.
Your thumbnails, where your team already chats.
Generate, validate, A/B test thumbnails directly in Discord. One slash command, four variants, the team votes. No onboarding, no tab to open.
/thumbgenerate 4 variants in 8s/remixtweak from an existing thumbnail/votekick off a quick poll in the channel
/thumb j'ai dépensé 10 000€ en 24hWhat creators are saying.
“On a doublé notre CTR moyen sur deux mois. ThumbLab a remplacé 90% du brief miniature qu'on faisait à notre designer.”
“L'IA garde nos rouges et notre typo en place. Plus de drift visuel entre les vidéos de la chaîne.”
“Le bot Discord c'est cheaté. L'équipe vote, on garde la meilleure, on publie. Zéro friction.”
“Les variantes m'ont fait gagner des angles auxquels je n'aurais jamais pensé. Outil précieux.”
“Je passais 45 min par miniature avant. Aujourd'hui c'est 3 minutes, et la performance est meilleure. Ça me paraît irréel.”
“On test naturellement plus depuis qu'on l'utilise. Et le coût a chuté vs la presta externe qu'on avait avant.”
Everything you need to know.
Yes. During onboarding we analyze your last 30 thumbnails and your best CTRs to dial in the style and visual codes that work for you. You can adjust settings manually after.
Another question? hello@thumblab.app
Ready to boost your CTR?
Create your account in 30 seconds. Generate your first thumbnail before this page ends.