Marketplace image spec tools

Each tool applies one marketplace's published image rules, links to the official page it came from and shows the date we last verified it. Everything runs in your browser.

🔒 Runs in your browser. Your images are never uploaded.

Amazon (US)

Check your Amazon main image for a pure white background Upload your main images → see the actual RGB values at the four corners and along each edge, whether any edge carries a frame or line, and whether a soft shadow band runs along an edge. We sample the four corners and an 8-pixel-deep band along each edge and compare against exactly 255, 255, 255 (tolerance 0); the band depth and the tolerance are our own settings, and edge sampling is our method, not Amazon's published wording. Rename product images to Amazon's file naming convention Type the product identifier once — the field takes any of the identifiers Amazon lists — and every image is renamed identifier.MAIN.jpg, identifier.PT01.jpg and so on, with spaces and hyphens stripped from the identifier, ready to download one by one or as a single ZIP. Resize product images for Amazon Upload your photos → JPEG (8-bit RGB) or PNG (indexed, up to 256 colours), 72 dpi written, ICC profile stripped, kept up to Amazon's 10,000 px maximum, never enlarged. Set image DPI without resizing Upload JPEG or PNG files → get the same pixels back with the header density set to 72 or a value you type. Nothing is resampled, re-encoded or uploaded. Why Amazon suppressed your listing image The reasons Amazon publishes for hiding a listing over its images, the scope of each, the official wording it rests on, and which tool on this site checks it. Write Amazon’s disclosure keyword into your image metadata Upload your JPEG or PNG files → download the same files with contains-synthetic-performer written into XMP dc:subject, the field named on Amazon's Product image guide page. Pixels are not touched.

Amazon (US) and Shopee Mall

Check your product’s share of the frame for Amazon and Shopee Mall Upload your product photos → get the bounding-box area share of each frame, checked against Amazon 85% and the Shopee Mall 60% / 50% figures (Shopee Mall guidelines, undated), plus the longest-side share for reference.

Amazon, Walmart, eBay, Etsy, Shopify (plus Shopee and TikTok Shop for comparison)

Export product images for Amazon, Walmart, eBay, Etsy and Shopify Upload your photos, tick the platform presets you need, and download one ZIP with a folder per platform page and preset, plus a report.csv listing every output and its flags.

Amazon, Walmart, TikTok Shop, Shopee Mall and Etsy

Flatten product image backgrounds to pure white Upload your photos → near-white background pixels connected to the edges become exact RGB 255, 255, 255, transparency is composited onto white, and each image is saved as JPEG or PNG with nothing cropped or scaled.

eBay

Resize product images for eBay Upload your photos → keep their shape with the longest side at 1,600 px, or pad them onto a 1:1 canvas of about 1,600 × 1,600 px, as JPEG, PNG or WebP, each checked against eBay's published 12 MB per-picture limit.

Etsy

Flatten transparent PNGs onto white for Etsy listings Upload your PNGs → every transparent or semi-transparent pixel is composited onto white and each image is saved as an opaque .jpg or .png at the width and height as the image is displayed (EXIF orientation is applied, so a camera-rotated file's width and height swap). Prepare Etsy listing photos — without changing their pixel size Upload your listing photos → get opaque JPEG or PNG files with transparency composited onto white, at their original pixel size and with metadata stripped.

Shopee

Shopee product image rules: the 1:1 and 3:4 sets Shopee’s published rules for the 1:1 and 3:4 product image sets, each line with the official page, the exact sentence and the date we checked it.

Shopify (product and collection images)

Resize product images for Shopify Upload your photos → get padded 2048 × 2048 or fit-inside 2048 px JPEG, PNG or WebP files, every output under both of the pixel limits Shopify’s two official pages give.

Walmart Marketplace

Resize product images for Walmart Marketplace Upload your photos → get 2200 × 2200, 1:1, 8-bit-per-channel RGB JPEG files padded with exact white (255/255/255), compressed toward Walmart's "5MB or less" line.

Walmart, Amazon, Etsy, Allegro and TikTok Shop

Check image bit depth and colour mode Upload your JPEG or PNG files → see bit depth, colour mode, embedded ICC and EXIF, and whether the picture itself is effectively greyscale, each next to the official wording that addresses it.

Walmart, eBay, Shopify, Etsy and Amazon

Compress product images to a target file size Upload your photos → get each file checked against the size range you choose and re-encoded only if it is outside it — each platform's published file-size wording read as decimal MB (our reading, explained on this page), Etsy's upload warning, or your own minimum and maximum — at exactly the pixel dimensions you uploaded.

Guides

Where the official image specs disagree — and which reading we follow Two official pages, two different numbers. We quote the official wording we hold, link and date every page, and say which reading our tools apply and why.