What is the safest size to use everywhere?

A square 2000 by 2000 JPG works on every major marketplace. Etsy and Amazon prefer 2000, eBay and Poshmark accept it, and you can always size down for a specific platform.

Do all marketplaces want square photos?

Etsy, Amazon, eBay, and Poshmark all display square or crop to square, so a 1:1 frame is the safe default. Pad to a square rather than letting the site crop your photo.

How often do these numbers change?

Marketplaces adjust image rules every year or two. Re-check each platform's seller help before a large upload, and note the date you last verified it.

Product photo size guide for every marketplace (2026)

Every marketplace has its own image rules, and getting them wrong means a rejected or low-ranking listing. Here are the current targets SelfShot uses, with the reasoning behind each one.

Etsy

Square images, at least 2000 pixels on each side, saved as JPG under about 1 MB so they upload reliably. Etsy standardized on square, so portrait and landscape phone photos get padded to a clean 1:1 frame. If a photo will not fit under 1 MB at 2000 pixels, drop to 1600 by 1600. See how to fix image too large errors on Etsy for the details.

eBay

Square displays best and eBay turns on zoom at 1600 pixels or more on the longest side, so 1600 by 1600 is the target. The maximum file size is 12 MB, which is generous. A white background is recommended but not required. If your photo is wider than it is tall, pad it to a square so eBay does not crop the edges. The eBay resize guide covers the crop problem.

Amazon

The strictest. Main images must be square, at least 1600 pixels, with the product filling about 85% of the frame on a pure white background at exactly 255,255,255. The maximum file size is 10 MB. Amazon's scanner rejects off-white backgrounds, so this is the platform where the white check matters most. Read why Amazon rejects your main image and the 85% rule.

Poshmark

Poshmark displays square. 1200 by 1200 is a safe, sharp default. The newer app favors a portrait crop in the feed but still accepts square photos shown padded.

More marketplaces

If you sell on Mercari, Depop, Facebook Marketplace, or Shopify, the same square-first approach works. SelfShot includes those as presets too, so you can size one photo set for several platforms at once.

One photo set, every size

The practical move is to shoot once and export every size you need in a single batch. That is what cross-listing is about. Pick the marketplaces, drop your photos, and download a ZIP with a folder per platform.

Re-check these on each marketplace before a large upload, since the numbers change over time. Note the date you last verified them so you know when to look again.