YouTube Shorts Thumbnail Size & Aspect Ratio Checker
Design your Shorts thumbnail at 1080×1920 (9:16). Drop in an image or pick a video frame to see how it crops across YouTube — nothing you drop in here is uploaded anywhere.
YouTube Shorts Thumbnail Size & Aspect Ratio Checker
Nothing you drop in here is uploaded anywhere — it stays entirely in your browser.
How your cover crops on each YouTube Shorts view
Shorts player
9:16
HIGH confidenceChannel Shorts tab
2:3
LOW confidenceHome / subscriptions
4:5
LOW confidenceSearch results
16:9
LOW confidenceNot counted in the text-safe area: sources disagree on whether search crops the cover to 16:9 or shows it whole inside a 16:9 container.
YouTube Shorts thumbnail size and aspect ratio, by view
YouTube shows your Short’s 9:16 thumbnail on several surfaces, and some of them reframe it. The table shows how much of a 1080×1920 thumbnail each view keeps. The 16:9 search view is labelled “may vary” and left out of the text-safe area, because sources disagree on whether search crops the thumbnail or shows it whole inside a 16:9 container.
| Surface | Aspect | Visible part of a 1080×1920 cover | Confidence | Notes & sources |
|---|---|---|---|---|
| Shorts player | 9:16 | 1080×1920 | HIGH | Recommended upload 1080×1920. Byso, Reap, Pixellize |
| Channel Shorts tab | 2:3 | 1080×1620 | LOW | Vertical grid card, measured at 2:3 by a single source. Byso |
| Home / subscriptions | 4:5 | 1080×1350 | LOW | Automatic 4:5 treatment on some surfaces. Reap |
| Search results | 16:9 | 1080×608 | LOW | May vary — 16:9 container; sources conflict. Pixellize |
Can you upload a custom Shorts thumbnail?
Only on some channels so far. YouTube started rolling out custom Shorts thumbnails on 24 July 2026, to YouTube Partner Program creators first. Channels that don’t have it yet can only pick a frame from the video — which is why the checker also lets you pick a video frame instead of an image.
Posting the same clip elsewhere? Check the Instagram Reel cover size and the TikTok cover size checkers too.
Thumbnail sorted? Check the clip against the YouTube Shorts safe zone and the YouTube Shorts max length.
Thumbnail sorted? Now make the Short. Pod2Reels turns your podcast into ready-to-post clips.Frequently Asked Questions
What size is a YouTube Shorts thumbnail?
1080×1920 pixels (9:16), the same frame as the Short. Other surfaces reframe it — some Home and Subscriptions views apply an automatic 4:5 treatment — so keep key text inside the centered 1080×1350 area.
What aspect ratio are YouTube Shorts?
9:16 vertical, with a recommended upload of 1080×1920. Search results may show Shorts inside a 16:9 container, but sources disagree on how the thumbnail is framed there, so treat that view as variable.
Can I upload a custom thumbnail for Shorts?
Only on some channels so far. YouTube started rolling out custom Shorts thumbnails on 24 July 2026, to YouTube Partner Program creators first. Channels without access yet can only pick a frame from the video.