Design a small preview image with one clear focal point, readable contrast, and minimal text.

A thumbnail is often viewed at a much smaller size than the original image. Fine details and long headlines disappear when reduced, so the design should communicate its main idea quickly. Choose one subject and avoid competing visual elements.

How to approach it

Check the image at the actual thumbnail dimensions, not only while zoomed in inside an editor. Use strong contrast and keep text short enough to remain legible. If a face or product is the focal point, give it enough space and avoid placing labels over critical details.

Checks before you share

Keep an untouched source file, inspect the exported copy at full size, and confirm that the result suits its intended use. If the image contains private information, check the entire frame and its metadata before publishing.

Frequently asked question

Why does my thumbnail look blurry?

It may be too small, over-compressed, or enlarged beyond the source dimensions.

For a practical next step, try the Image Resizer. You can also use the Image Compressor for a related image task.