Why do marketplaces require a minimum image size?

Mainly to support zoom — Amazon, for example, uses images at or above 1000×1000px to enable the zoom-on-hover feature on listing pages.

Does it check anything besides minimum dimensions?

Yes — it also shows the simplified aspect ratio (e.g. 4:5) and flags whether the image is a perfect square.

No — dimensions are read locally in your browser; the file itself is never sent to a server.

Check an image’s pixel dimensions and aspect ratio against Amazon, Etsy or Shopify’s minimum main-image requirements.

Top ad slot

Choose an image

Files never leave your device — the image is only read locally to measure it.

Bottom ad slot

1
Choose a platform

Amazon (1000×1000 min), Etsy (2000×2000 min) or Shopify (800×800 min).
2
Choose your product image

Its pixel dimensions are read automatically.
3
Read the verdict

Whether it meets the minimum, plus its aspect ratio and whether it is square.

Why do marketplaces require a minimum image size?: Mainly to support zoom — Amazon, for example, uses images at or above 1000×1000px to enable the zoom-on-hover feature on listing pages.
Does it check anything besides minimum dimensions?: Yes — it also shows the simplified aspect ratio (e.g. 4:5) and flags whether the image is a perfect square.
Does this tool upload my photo anywhere?: No — dimensions are read locally in your browser; the file itself is never sent to a server.