ThumbRadar monitors channels 24/7. We detect when they change a thumbnail, show you which one gets more clicks, and alert you instantly so you can replicate their success.
Free • No credit card required
These channels just changed their thumbnails. Which one do you think will win?
Stop guessing which thumbnail works. Learn from experiments others already paid for.
We detect changes within minutes. Be the first to know when competitors experiment.
Compare views before and after the change. Quantify which thumbnail won.
Before vs After side by side. Identify patterns that drive clicks.
Complete history of every video. See all versions they tested.
We also detect title changes. See how they optimize both elements.
Instant email alerts. Never miss an experiment.
Just paste a URL. We handle the rest.
Paste the URLs of channels you want to spy on.
We scan every 15 minutes and detect any change automatically.
See which thumbnails win and apply those patterns to yours.
"ThumbRadar revealed that MrBeast changes thumbnails an average of 3.2 times per video. We adopted similar testing and saw CTR increase by 47% in two months."
Are you going to miss it?
Free • No credit card required