How do I resize an image to a YouTube thumbnail?

Drop in your image, choose Cover or Fit, optionally add text, then click Download thumbnail. The output is a 1280 x 720 JPG, the 16:9 size YouTube expects.

What is the difference between Cover and Fit?

Cover fills the whole 1280 x 720 frame and crops the overflow; you can drag the preview to choose which part stays. Fit keeps the entire image visible, so black bars may appear.

How do I keep my thumbnail under YouTube's 2 MB limit?

The tool re-encodes the JPG at lower quality until it is under 2 MB. If it still cannot get under, a warning appears, so try a simpler or smaller image.

What is the Safe-zone guide for?

It draws a dashed red box in the bottom-right corner where YouTube's duration badge covers the thumbnail. Keep text away from it. The guide is not included in the downloaded image.

Why does my photo fail to load?

The browser could not decode it; the file may be corrupt or in an unsupported format such as HEIC. Convert it to JPG or PNG first, then drop it in again.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Are my files uploaded?

No. Your files are opened and processed inside your browser and are not sent to LibraTool. Some tools first download a processing engine or AI model to your browser; that download contains no data of yours.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install. Very large files can be slow or run out of memory on a phone, so use a computer for those.

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Free YouTube Thumbnail Resizer

Resize any image to YouTube's 1280×720 thumbnail spec, add text and a safe-zone guide, and auto-compress under 2 MB — in your browser, no upload. Free and private.

File size depends on your deviceFiles stay privateNo login requiredFree forever1280×720, under 2 MBText + safe-zone

Works offline once loaded

Resize to YouTube's exact 1280×720 thumbnail, add text, and stay under the 2 MB limit — entirely in your browser.

Drop a file here, or click to browse

HEIC, HEIF · processed on your device

or press Ctrl+V to paste from your clipboard

Browse files

🔒 Your image is resized on your device — it is never uploaded.

Common uses

1280×720 Thumbnail ResizerResize any image to YouTube's 1280×720 spec.
Thumbnail Under 2 MBCompress your thumbnail under YouTube's 2 MB limit.
Add Text to ThumbnailOverlay bold, outlined text on your thumbnail.
Shorts CoverMake a cover image for YouTube Shorts.
Fit vs FillChoose how your image fits the 16:9 frame.
Resize Image for YouTubeGet any photo ready to upload as a thumbnail.

How It Works

Resizes any image to YouTube's exact 1280×720 (16:9) thumbnail spec, optionally adds bold text and a duration-badge safe-zone guide, and auto-compresses the result under YouTube's 2 MB limit — all in your browser, no upload.

1
Add your image
Drag in a photo or screenshot. It stays on your device.
2
Fit and caption
Choose cover or fit, add bold text, and toggle the safe-zone guide (the bottom-right area covered by the duration badge).
3
Stay under 2 MB
The tool compresses the JPG automatically so YouTube accepts it.
4
Download
Save the 1280×720 thumbnail. Nothing is uploaded.

Your image is resized on your device with the Canvas API — it is never uploaded.

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Common uses

How It Works

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Frequently Asked Questions