A/B
A/B Thumbnail Lab
Put two thumbnails head-to-head in real YouTube scenes — the feed, search, mobile and the watch sidebar — and see which one pulls the eye first.
Thumbnail A
Drop Thumbnail Aor click to browse
JPG · PNG · WebP · GIF
Thumbnail B
Drop Thumbnail Bor click to browse
JPG · PNG · WebP · GIF
A/B Comparison · Desktop Feed
I Spent 30 Days Learning This Skill
A
Your Video (A)
The Truth About Passive Income in 2026
Why Everyone Is Switching to This Tool
B
Your Video (B)
I Tested 10 AI Tools So You Don't Have To
Which thumbnail stands out more? The one that catches your eye first is likely to get more clicks.