See your thumbnail where viewers will, before you publish.

A thumbnail is judged at 168 pixels in a sidebar and at thumb's width on a phone, next to a title that may be cut after two lines. Drop yours in and check it at every size, in a dark or a light feed.

How it works

Free, and no account.

Drop in the thumbnail

Any image works. It is opened from your disk by the browser and never uploaded.

Type the title

Titles are cut after two lines in most placements. See where yours breaks, and whether the thumbnail and title repeat each other.

Check the small sizes

The sidebar is the hard test: if the subject and the words still read at 168 pixels wide, the thumbnail works everywhere.

FAQ

YouTube thumbnail preview: common questions

Want the whole video made, not just this part?

autotube.pro turns a title into a researched, narrated, rendered faceless video up to three hours long.

Make one in the free thumbnail maker