▶ FOR YOUTUBE CREATORS

Your thumbnail has 200ms. Score it before the algorithm does.

Upload a thumbnail, get the predicted attention heatmap, a score /100 and three concrete fixes — then see it at real sidebar size next to the competition. Free, no account.

Drop your image here — or click to browse

PNG · JPEG · WebP — 8 MB max · 5 free/day, no account

Test the 3 candidates

Score your variants before you publish — pick by data, not by gut. The highest attention score usually wins the CTR race too.

One face, big

Faces pull predicted attention harder than anything else. If the heat isn't on the face, the face is too small.

Then score the video's landing

A thumbnail wins the click; your channel page or site closes the sub. Scan those too — same eye, same physics.