Walmart — Primary image
Hard 1:1 square. Listings unpublish below 500×500.
| Minimum longest side | 500 px |
|---|---|
| Recommended longest side | 1,500 px — below this, zoom does not engage |
| Ideal longest side | 2,000 px |
| Maximum longest side | 10,000 px |
| Maximum file size | 5 MB |
| Accepted formats | JPEG, PNG, BMP |
| Preferred format | JPEG |
| Aspect ratio | 1:1 (required) |
| Background | Pure white, RGB 255, 255, 255 |
| Minimum product fill | 50% of the frame |
| Transparency | Not allowed — flatten onto white |
| Animation | Not allowed |
The square requirement is a requirement, not a recommendation
Amazon, Etsy and eBay all prefer square images and accept others. Walmart does not. A primary image must be 1:1, and the tolerance is tight enough that a 2000×1997 export counts as a failure.
This catches people migrating a catalogue. Photos that have served fine on another marketplace for years arrive at Walmart slightly off-square — a crop nudged by a few pixels, a resize that rounded down — and fail on a rule the other channels never applied.
The fix is a pad or a crop to exact parity, not a rescale, because rescaling a non-square image to a square distorts the product.
Below 500x500 the listing unpublishes
Most marketplaces treat an undersized image as a quality warning. Walmart treats it as a blocking error: an item whose primary image is under 500 px on a side does not stay published.
Treat 500 px as the floor rather than the target. Walmart's own guidance asks for 1,500 px so the zoom viewer works, and the practical target is 2,000 px square — the same file that satisfies Amazon, which keeps one asset serving both channels.
The fill rule is looser than Amazon's
Walmart wants the product to occupy at least half the frame, against Amazon's 85%. A photo composed for Amazon always satisfies Walmart; the reverse is often false, which is the right direction to be caught out in if you are only going to shoot once.
What a pixel check cannot tell you
These rules need a human eye. The checker lists them rather than passing them silently, because a tool that reports a clean bill of health and then lets a listing get suppressed is worse than no tool at all.
- Only the product being sold is shown
- No text, watermarks, or brand overlays
- Listings score higher with 4+ images, ideally 6 or more
Questions
Does Walmart really reject a 2000x1998 image?
The aspect check is strict — a couple of pixels out of square is a fail, not a warning. Pad or crop to exact parity rather than rescaling, which would distort the product.
Can I reuse my Amazon photos on Walmart?
Usually yes, and it is the efficient path: a 2,000 px square on pure white satisfies both. Check the aspect ratio first, since Amazon only recommends square while Walmart enforces it.
How many images should a Walmart listing have?
Four or more, ideally six. Walmart scores listing content quality partly on image count, and that score affects visibility.
Does Walmart accept PNG?
Yes — JPEG, PNG and BMP. Note the file size ceiling is lower than most marketplaces, so a large lossless PNG can fail on bytes even when the dimensions are correct.
Other marketplaces
The rules differ more than people expect — a photo that passes on one channel can fail on another for reasons that have nothing to do with quality.
Sources
Specifications last verified . Amazon's own documentation is partly behind a Seller Central login, so where published sources conflict the permissive value is treated as the hard failure and the stricter one as a warning.