Find Your Best Thumbnail — Automatically
ThumbnailAB rotates your YouTube thumbnails on a schedule, tracks real CTR data via YouTube Analytics, and tells you which design wins.
Start A/B Testing — $12/moCancel anytime. No contracts.
1
Connect YouTube
Authorize your channel via OAuth in seconds.
2
Upload Variants
Add 2–5 thumbnail designs per video.
3
Get the Winner
We track CTR and surface the best performer.
Simple Pricing
Pro
$12
per month
- ✓ Unlimited A/B tests
- ✓ Auto thumbnail rotation
- ✓ Real CTR analytics dashboard
- ✓ Up to 50 videos tracked
- ✓ Email winner alerts
FAQ
How does the thumbnail rotation work?
We connect to your YouTube account via OAuth, then automatically swap thumbnails on your videos at scheduled intervals using the YouTube Data API.
How is CTR tracked?
We pull click-through rate data from the YouTube Analytics API after each thumbnail rotation period and compare performance across variants.
Can I test more than two thumbnails?
Yes. You can upload multiple thumbnail variants per video and we'll rotate through all of them, ranking each by CTR at the end of the test.