Mobile size
Drop image to use as background
Nothing is uploaded. Every image you open is processed inside your own browser, and the finished thumbnail is written straight to your downloads folder. No file ever reaches a server — this tool works with your Wi-Fi switched off.
Saved looks live in this browser, on this device only. They use your browser's local storage, which means:
If a set of looks matters to you, it's worth writing the settings down somewhere too. There's no account and no backup — that's the trade-off for not needing a sign-in.
Switch on Safe zones in the toolbar to see the shaded areas that platform interface elements sit on top of. Keep faces and words out of them.
The guides are preview-only. They never appear in the file you download.
Beyond the three presets, Custom takes any size from 200 to 4096 px per side — for podcast art, blog headers, ad units, or anything else. Safe zones adapt to the shape you pick: tall frames get the Shorts and Reels insets, wide ones get YouTube's.
Two ways the photo can meet the frame:
In Fit mode those bars are filled with a blown-up, blurred copy of your own photo, the way Reels and Shorts do it. Switch to a solid colour if you'd rather.
There's deliberately no "stretch to fit" option. Squashing a wide photo into a tall frame distorts everything in it, and faces are the first thing to look wrong.
Click an arrow, circle, badge or tick to drop it on, then drag it around on the preview. Clicking a graphic selects it; clicking anywhere else goes back to moving the photo. Each one takes your accent colour, and you can resize, rotate, recolour and flip it.
Two is usually the limit. Directional cues can lift click-through noticeably, but thumbnails carrying more than three distinct elements average a lower rate than simpler ones. Past two the app will say so. It won't stop you, since the odd thumbnail genuinely needs a third.
Point them at something real. An arrow aimed at nothing, or a badge promising something the video doesn't deliver, reads as clickbait — and YouTube tightened enforcement on misleading thumbnails in 2026.
Eight display fonts are built into this page, so your thumbnail looks identical on every device — including phones and tablets, which don't have Impact or Arial Black installed. They are Anton, Bebas Neue, Oswald, Montserrat, Archivo Black, Rubik, Bangers and Playfair Display.
All eight are licensed under the SIL Open Font License 1.1, which permits commercial use and embedding. Copyright notices are in the source of this page. The system fonts listed below them in the menu will differ from device to device.