A/B Test Your YouTube Thumbnails & Skyrocket Your CTR
Upload multiple thumbnail variations, let real viewers decide, and automatically promote the winner — all from one dashboard.
Start A/B Testing — $12/moCancel anytime. No contracts.
3.2×
Average CTR lift
12k+
Tests run
4,800+
Creators
Simple Pricing
Pro
$12
per month
- ✓Unlimited A/B thumbnail tests
- ✓YouTube Analytics API integration
- ✓Auto-promote winning thumbnail
- ✓Real-time CTR dashboard
- ✓Up to 50 active videos
- ✓Email alerts on test completion
FAQ
How does the thumbnail A/B test work?+
You upload 2–4 thumbnail variations. ThumbnailAB rotates them on your video using the YouTube Data API and measures impressions and click-through rate for each via YouTube Analytics. After reaching statistical significance, the winner is automatically set as the permanent thumbnail.
Will this violate YouTube's Terms of Service?+
No. ThumbnailAB uses official YouTube Data API and YouTube Analytics API with OAuth 2.0. Thumbnail updates are a standard API operation explicitly supported by Google.
Can I cancel my subscription at any time?+
Yes. You can cancel anytime from your billing portal powered by Lemon Squeezy. You'll retain access until the end of your billing period with no hidden fees.