Reference guide

2026 Ecommerce Image Size Guide: Every Marketplace Spec

The complete reference for product image dimensions, aspect ratios, file formats, and background rules across every major ecommerce marketplace in 2026. Bookmarkable, and built from each marketplace's current seller documentation.

By Seb RodriguezPublished February 19, 20267 min read

TL;DR

Every major marketplace in 2026 wants high-resolution 1:1 or 4:3 product photos on clean backgrounds. The exact specs vary by marketplace. This table is the shortest-path reference — each row is what your export preset should match.

The 2026 marketplace spec table at a glance

If you only read one thing on this page, read this table. It's the 2026 baseline that every CatalogCut marketplace preset is tuned to. The columns are ordered by what matters most for compliance: recommended size, aspect, format, and background.

Marketplace	Primary size	Aspect	Formats	Max size	Background rule
Etsy	2700 × 2025 px	4:3 landscape (thumbnails render at this ratio)	JPG, PNG, GIF	20 MB	No strict rule, but clean white, neutral, or lifestyle backgrounds dramatically outperform cluttered ones. The primary image must match the dominant product view.
Shopify	2048 × 2048 px (enables zoom on all themes)	1:1 square (PDP), 16:9 for hero banners	JPG, PNG, WEBP	20 MB	Shopify does not enforce a background. Pick one — white or a single brand color — and use it everywhere for a consistent storefront.
Amazon	2000 × 2000 px for retina zoom	1:1 square required on MAIN image	JPG (preferred), PNG, TIFF, GIF (no animation)	10 MB	MAIN image MUST have a pure white background (RGB 255,255,255). Secondary images may include lifestyle and infographic content.
eBay	1600 × 1600 px	1:1 square preferred, 4:3 and 3:4 accepted	JPG, PNG, GIF, BMP, TIFF	12 MB	White background required on the first gallery image for category conformance. eBay Super-Sized requires clean backgrounds.
TikTok Shop	1080 × 1080 px (matches TikTok feed aspect)	1:1 for product images, 9:16 for hero/video creative	JPG, PNG, WEBP	5 MB	Clean background strongly recommended. Lifestyle shots with human models outperform flat product-only shots in the For You feed.
Walmart	2200 × 2200 px for Walmart's zoom	1:1 square required for Primary Image	JPG (preferred), PNG, BMP	5 MB	Primary image: pure white background (RGB 255,255,255). Product must be fully visible without props.

A printable CSV of the full spec sheet is linked from the Resources hub. Agencies and partner sites are welcome to republish the CSV with a link back.

Aspect ratio: 1:1 is winning, 4:3 is the Etsy exception

Eight of the top ten ecommerce marketplaces in 2026 use 1:1 square as the default aspect ratio for product images. The exceptions that matter are Etsy (4:3 landscape) and TikTok Shop for hero creative (9:16 vertical).

If you could only standardize one thing across your catalog, pick 1:1. Shoot 1:1, edit 1:1, export 1:1. Then derive 4:3 for Etsy and 9:16 for TikTok from the same master by cropping rather than re-shooting. CatalogCut's multi-marketplace export does this automatically from a single master file.

For Etsy specifically: do not upload a square photo and let Etsy auto-crop to 4:3. Etsy's auto-crop always removes the top and bottom 12.5% of the image — which frequently cuts off product features or puts the product off-center in the final thumbnail. Export 4:3 directly.

Resolution: what “recommended size” actually means

Marketplace “recommended sizes” aren't just suggestions. They're the threshold at which zoom, high-DPI display, and mobile retina all function correctly. Below the recommended size, buyer-facing features quietly disable:

Amazon zoom requires 1000 × 1000+ pixels. 2000 × 2000 enables retina zoom.
eBay Super-Size zoom requires 1600+ pixels on the longest side.
Shopify zoom requires 800 × 800+ pixels. 2048 × 2048 is the safe baseline.
Walmart zoom requires 1500+ pixels. 2200 × 2200 is recommended for retina.

Always upload the recommended size, not the minimum. Bandwidth savings from smaller files are negligible — every marketplace CDN re-encodes your image anyway.

File formats in 2026: JPG, PNG, or WebP?

JPG remains the safest universal format. Every marketplace accepts it, most prefer it, and CDNs handle it optimally.

PNG is the right choice only when you need transparency (a transparent PNG is different from a white-background JPG because the buyer's device renders the transparent PNG against whatever the marketplace's page background is). Shopify, TikTok Shop, and modern custom storefronts preserve PNG transparency. Amazon, Walmart, and eBay do not — they composite onto white regardless.

WebP is accepted by Shopify and TikTok Shop. It is not accepted by Amazon, Walmart, eBay, or Etsy as of 2026. Don't count on WebP as your universal format yet. Keep JPG as the export default and only use WebP when uploading to a Shopify-only or TikTok-only catalog.

AVIF is accepted nowhere for marketplace uploads yet. Marketplaces serve AVIF to shoppers via their own CDNs, but sellers still upload JPG.

Background rules: pure white is not always required

“Pure white (RGB 255, 255, 255)” backgrounds are mandatory only on Amazon and Walmart, and only on the primary image. Every other marketplace allows broader backgrounds, and some (like TikTok Shop) actively reward lifestyle over white.

A practical rule: pick one background per marketplace and hold it. Don't mix white, off-white, and lifestyle across the same marketplace — buyers read inconsistency as amateur. When your catalog spans marketplaces, CatalogCut's per-marketplace preset system lets each marketplace have its own background while the same master powers all of them.

Product area: 75%, 80%, or 85%?

“Product must fill X% of the frame” is the rule that catches most sellers off guard, especially on small-object categories (jewelry, supplements, small accessories).

Amazon: ≥85% on primary. Enforced.
Walmart: ≥75% on primary. Enforced via Pro Seller badge check.
eBay: ≥80% recommended but not formally enforced.
Etsy: 70–85% recommended; no formal rule.
Shopify: no rule; we recommend 80% locked.
TikTok Shop: no rule; we recommend 65–75% with lifestyle context.

Marketplace presets are best used to lock the output spec: size, aspect ratio, and background treatment. Product-area still needs a human sanity check against the marketplace target, especially on small products where framing errors are easy to miss.

Lock your specs into a preset, stop memorizing them

Specs change. Walmart tightened its image rules twice in 2025. Amazon's image-scanning pipeline gets incrementally stricter every quarter. The sellers who stay compliant long-term aren't the ones who memorize specs — they're the ones who delegate specs to their tooling.

Every marketplace you list on should correspond to one CatalogCut preset. That preset should encode the marketplace's current spec: size, aspect ratio, format, and background rules. When specs change, update the preset once — not every export.

Walking through this page and still picking sizes manually is the wrong layer to work at. Get a preset in place once per marketplace, and every future shoot just flows through it.

Frequently asked questions

Are marketplace image specs actually enforced?

Yes, but enforcement varies. Amazon and Walmart run automated scans and will flag or suppress listings that fail. eBay and Etsy enforce softer — they'll accept the upload but rank you lower or disable zoom. Shopify is a storefront (self-hosted), so rules are self-imposed.

What happens if my photo is below the minimum size?

On Amazon, eBay, and Walmart, under-minimum photos are rejected or have zoom disabled — which measurably reduces conversion. Etsy accepts smaller photos but will display them as low-resolution. Shopify accepts any size but themes look broken if images are too small for retina displays.

Can I use the same image across all marketplaces?

With multi-marketplace export, yes. Process your master shot once, then export the correct variant per marketplace with the right size, aspect ratio, and background treatment from the same source image.

Which marketplace has the strictest image rules?

Amazon, narrowly. Walmart is close second (similar rules, more forgiving on product-area percentage). Etsy and TikTok Shop are the loosest. eBay sits in the middle — permissive on uploads, but zoom and badge rewards are gated behind resolution.

Does marketplace image size affect SEO?

Indirectly. Marketplace search algorithms weigh on-platform engagement signals (CTR, conversion, dwell time), and image quality drives those. A compliant high-resolution primary image out-converts a non-compliant one, which lifts your organic ranking inside the marketplace.

Do I need different images for mobile and desktop?

No. Upload the recommended master size once — the marketplace's CDN generates responsive variants automatically. You only need to reshoot or re-crop if the product hero is unrecognizable at thumbnail size on mobile.