Image Spec Check

General image size checker

Website Image Size Checker

Check website image dimensions, aspect ratio, file size, and format before uploading images to product pages, marketplaces, landing pages, galleries, or thumbnails.

Platform target1200 x 1200 px flexible target
Recommended formatWEBP
File limit10MB
Supported formatsJPEG, PNG, WebP, GIF, SVG

Compliance

Compliance results

Upload an image to see dimension, aspect ratio, format, and file size checks.

  • Image dimensionsUse enough pixels for the page area, product zoom, social cards, or thumbnail frame where the image will appear.
    Waiting for an uploaded image.
  • Aspect ratioMatch the expected frame when the image will appear in cards, galleries, product grids, or thumbnails.
    Waiting for an uploaded image.
  • FormatJPEG, PNG, WebP, GIF, or SVG depending on the image type and upload target.
    Waiting for an uploaded image.
  • File sizeKeep website images as light as practical for the use case; this checker flags files above 10MB.
    Waiting for an uploaded image.

Preview

Website product and thumbnail preview

Export

Crop, compress, and export

Good quality range for product images.
Spec sources

Website image checks

Check image dimensions, ratio, format, and file size

Use this page as a general preflight image size checker, then move to a marketplace-specific tool when the final upload target has strict requirements.

When website images are too large or too small

Images that are too small can look soft in product cards, thumbnails, and zoom views. Images that are too large can slow workflows and create unnecessary file weight.

Product image, thumbnail, and marketplace use cases

Check product photos, landing page images, social thumbnails, collection grid images, and marketplace-ready exports before adding them to a page or listing.

Website image size checklist

Review pixel width, pixel height, aspect ratio, file type, file size, and whether the crop keeps the important subject visible inside the expected frame.

Marketplace image requirements

Compare marketplace image requirements

For strict seller uploads, use the checker that matches the final platform. Each tool includes platform-specific dimensions, ratios, file formats, file size checks, and preview frames.