Why a "safe zone" exists on Shorts

When your video plays as a Short, YouTube draws its own interface on top of it: the like / comment / share / remix buttons run up the right side, and the channel name, title, description and the “Shorts” label sit across the bottom. Anything you place there — a caption, a face, a logo, the punchline text — gets partly hidden. The safe zone is the area those overlays don’t touch.

How to use it

Export one frame of your Short (or your thumbnail) as an image.
Drop it above. It’s drawn onto a 9:16 (or 16:9) canvas at the real aspect ratio.
The red areas show where the UI covers your video. Keep faces, subjects and text inside the green area.
Toggle the overlay off to see your frame clean, and on to check the fit.

Switch to Thumbnail 16:9 to check a normal video thumbnail — it marks the corner where the duration stamp sits and the outer margin that can get cropped in different placements.

Why it runs in your browser

Thumbnails and Shorts frames are usually unpublished — your next upload, not something you want sitting on a stranger’s server. This tool draws the image with a canvas in your own tab, so nothing is sent anywhere. Load the page, go offline, and it still works.

A note on the exact margins

YouTube doesn’t publish pixel-perfect safe-zone numbers, and the interface shifts slightly between phones and app versions. The zones here are a practical approximation of the current Shorts layout (reviewed August 2026) — treat them as a margin of safety, not a millimetre-exact spec, and leave yourself a little room beyond the green box for the important stuff.

Frequently asked questions

Is my thumbnail uploaded anywhere?

No. It’s processed entirely in your browser with a canvas — no upload, nothing stored. That matters most exactly here, because the image is usually one you haven’t published yet.

What size should a Short be?

Vertical 9:16, commonly 1080×1920. This checker uses that aspect ratio regardless of your file’s exact size, so you can drop any vertical frame and still read the zones.

My subject has to be low in the frame — what do I do?

Raise it if you can, or keep only non-essential parts (background, empty space) in the red areas. The title bar is opaque, so text placed there is effectively invisible.

Tools that pair with this one

Image Compressor — resize or shrink the thumbnail to YouTube’s limits once the layout works.
QR Code Generator — make a scannable code to put on an end screen or in the frame.

Everything runs locally in your browser. Safe-zone margins are approximate and can change with YouTube app updates — verify on a real phone before a big upload.