See your thumbnail the way viewers actually see it.
See it at true size, in real feeds, next to real competitors. Then let a crowd vote before you publish.
Live demo — the Squint Test
You can also drop an image straight onto this card. Everything runs in your browser and your image stays on your machine.
The problem, in two numbers
You design at 1280×720. A mobile search result shows 1.7% of those pixels, blurred, mid-scroll, for about a second. That second is the whole game.
Three steps,
then you know.
- 01
Drop your thumbnail
You don't need an account and nothing gets uploaded. The preview renders in your browser at the exact pixel sizes YouTube uses.
- 02
See it where it fights
Search results, the home grid, the sidebar. Your thumbnail sits among the ones already winning in your niche.
- 03
Let the crowd decide
Put two versions in a poll and share one link. Voters just tap a thumbnail. They never need an account.
Every surface YouTube will judge you on.
Each preview renders at the exact pixel size that surface uses, with your competitors' actual thumbnails around yours.
Crowd vote
Stop asking your group chat.
Put up to four versions behind one short link. Anyone can vote with a single tap, one vote per person, and nobody has to sign up. Results update live while you watch.
your-link/k7m2xq · 214 votes
One free active poll on every account. Unlimited on Pro.