YouTube Thumbnail Resizer

Resize any image to YouTube's exact 1280×720 thumbnail dimensions, instantly in your browser.

Upload an image. Choose crop-to-fill or fit-with-letterbox, then download the resized file.

Click or drag an image here

Resize mode:

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Creator guide

The right pixel dimensions avoid a blurry or cropped thumbnail

YouTube's recommended 1280×720 size keeps your image sharp across every placement — an off-size upload can get stretched, cropped unpredictably, or soft.

What this tool does

Resizes any uploaded image to YouTube's exact 1280×720 recommended thumbnail dimensions, entirely in your browser.

How to use the result

Download the resized file and upload it directly as your thumbnail.

Data to note

Runs entirely in your browser via the Canvas API — your image is never uploaded to a server.

A simple way to use this tool

Use crop-to-fill when your subject fills the frame; use fit-with-letterbox to guarantee nothing gets cut off.
Always preview the result before uploading to YouTube.
Re-export at 1280×720 even if your original image is already close to that size.

FAQ

Common questions

That's YouTube's officially recommended thumbnail resolution (16:9, minimum 640px wide) — this tool outputs exactly that size.

No — the resize happens entirely in your browser using the Canvas API. Nothing is sent to a server.

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