How to make a thumbnail for a Short
Shorts thumbnails behave differently from long-form ones. In the Shorts feed nobody sees a thumbnail at all, because the video autoplays.
Where they do appear is your channel page, search results and the Shorts shelf. That makes the thumbnail a browse-surface asset rather than a click-decision one, and it changes what belongs on it.
This produces a 9:16 thumbnail image for one credit.
Steps
Decide whether this video needs one
Videos you expect to be found through search or your channel page benefit. Videos aimed purely at the feed largely do not, because the feed never shows the thumbnail. Spending a credit on every upload is usually waste.
Design for the grid, not for the feed
On a channel page thumbnails appear small and in rows. What reads at that size is one strong shape and at most three or four words. Detail that looks good full-screen disappears entirely.
Keep text out of the lower band
The title and duration overlay the bottom of the thumbnail in most placements. Anything you put there is covered, and it is the most common mistake in Shorts thumbnails.
Generate the image
Describe the frame in Leaxor and generate at 9:16. Images cost 1 credit, so iterating on a thumbnail is inexpensive compared with regenerating a video.
Check it at actual size
Shrink it to about an inch tall before uploading. If you cannot tell what it is at that size, neither can anyone scrolling your channel page.
What you end up with
A 1080x1920 image sized for the Shorts shelf, with the focal point clear of the lower overlay band and text large enough to read in a channel grid.
See the thumbnail toolsWhen this isn't the right approach
If your Shorts are purely feed-driven and you never appear in search, thumbnails are effort with no surface to pay it back. Long-form video is the opposite case, where the thumbnail is the single highest-leverage asset and deserves far more attention than this guide gives it. And if you are producing at volume, thumbnails are the first thing to drop. A credit and five minutes per upload adds up quickly against a surface most of your viewers never see, so reserve them for the videos you expect search to find.
Ready to make one?
Generate a thumbnailFrequently asked
Do YouTube Shorts even have thumbnails?
Yes, but they appear only outside the feed: on your channel page, in search results and on the Shorts shelf. Inside the feed the video plays immediately, so the thumbnail is never shown.
What size should a Shorts thumbnail be?
9:16 vertical, 1080x1920. Uploading a 16:9 thumbnail to a Short results in cropping that usually removes exactly the part you cared about.
Should the thumbnail show text?
A few words at most, placed in the upper two thirds. The overlay covers the bottom, and at channel-grid size anything longer than about four words is unreadable regardless of placement.
Can I change a Short's thumbnail after publishing?
Yes, and it is worth doing for videos that keep getting search traffic. Feed performance will not change, since the feed never showed it, but channel page and search impressions can improve.
Should thumbnails match across a channel?
A consistent treatment helps a channel page read as coherent, which matters when someone is deciding whether to subscribe after one video. Identical thumbnails hurt, because nothing then distinguishes one video from another in the grid.
Do Shorts thumbnails matter at all?
Less than for long-form, but not zero. Most Shorts views arrive through the feed, where the thumbnail is never rendered and the first frame does the work instead. The thumbnail matters in the places a Short appears as a browsable tile: your channel's Shorts tab, search results, and anywhere someone is deciding between your videos rather than swiping past them. That makes it worth doing for videos you expect search to find, and skippable for volume uploads that live and die in the feed.