Free tool
YouTube thumbnail size checker
Drop in an image to check it against YouTube's rules, then download a perfect 1280x720 version.
The specs: 1280x720 pixels, 16:9 aspect ratio, at least 640 pixels wide, under 2MB, in JPG, PNG, GIF or WEBP. Anything smaller looks soft on TVs and desktop; anything off-ratio gets cropped in the feed.
Want the full thumbnail studio?
Templates, AI backgrounds, one-click face cutouts and 1280x720 exports — all in the browser.
Open the editor