YouTube Thumbnail Resizer

A thumbnail that is the wrong size or over 2 MB gets rejected. This tool crops to the 16:9 frame and quietly lowers the quality until the file fits — no guesswork.

🛡️ Runs on your device — nothing is uploaded

Choose a file

Up to 25 MB · JPG, PNG, WEBP · runs instantly on your device

Choose file

Choose a file — the result appears right here. Nothing else to press.

How it works

Choose a photo or graphic.
It is cropped to 1280×720 automatically.
Download the thumbnail — already under the 2 MB limit when possible.

Good to know

FormatsJPG, PNG, WebP in — JPG out at 1280×720

Video thumbnails
Channel banners and covers
16:9 preview images for any platform

Questions

What if it can't get under 2 MB?

We lower the quality step by step and tell you the final size. Very busy images may need a simpler design.

Does it crop or squash?

It fills the 16:9 frame by cropping the overflow from the centre — proportions are never stretched.

Is it uploaded?

No, the crop and compression happen in your browser.

🔒 Processed entirely in your browser — your file is never uploaded.

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