YouTube Thumbnail Preview

Preview your YouTube thumbnail and title before publishing — on the homepage, search, sidebar, mobile, tablet and TV.

Thumbnail 1

Thumbnail 2
(optional)

Drag and drop up to 9 thumbnails hereor choose thumbnails from your device

Try to use a 16:9 aspect ratio as it's the most used in YouTube players and previews.
Have a resolution of 1280 x 720
Have a minimum width of 640 pixels
Have a maximum size of 50MB (2MB if uploading from the YouTube mobile app)

max. of 100 characters

Previews mix in both titles; search and critique use the main title — Swap to switch them

Channel page previews your thumbnail on your own channel — sign in and click your profile picture to save your handle for next time

Preview with top related YouTube thumbnails, searched with your video title, or the query if you enter one

AI Thumbnail Studio

Critique, compare, and improve your thumbnails with AI: a 0–100 score with concrete fixes, a head-to-head winner between two, or an improved redesign of your own image. Add a title and description above for sharper judging.

Upload a thumbnail above to get started

No thumbnail yet? Upload your video to YouTube — unlisted is fine — and the AI will design one from your actual footage. Generate from your video →