Is the Marketplace Image Compliance Checker free?
Yes. This tool is completely free to use, with no sign-up required.
Does the checker upload images to a server?
No. Upload, analysis, and guidance all stay in your browser, so your images remain on your device while the checks run.
Is this an official validator for Amazon, Shopify, or Etsy?
No. This is a practical readiness checker for seller workflows. It helps flag likely issues before upload, but it is not an official platform validator and does not guarantee approval.
What happens after an image is flagged?
The tool explains what looks wrong and links to the existing tools that can fix it, such as resizing and cropping, background cleanup, batch optimization, or metadata removal.
Can I check more than one image at a time?
Yes. You can upload multiple product images and get a clear, per-file readiness result for each one.
How does the checker decide my background is not white enough?
It samples a band around the outer 8% of the image and computes two numbers: the mean luminance and how much the pixels in that band vary. Pure studio white lands above 236 with almost no variance. A wall shot lit from one side still averages bright but has high variance, which is why it comes back as a warning even though the background looks white to you.
Why does the same photo pass for Amazon and fail for Etsy?
The two profiles want opposite frame shapes. Amazon expects square, with a width-to-height ratio between 0.92 and 1.08. Etsy expects portrait, between 0.72 and 0.92. A 1:1 image is dead center for one and outside the range of the other, so the ratio check flips. That is deliberate, and it is why the platform selector is the first thing you set.
What does a fail on transparency actually mean?
It means more than half a percent of the pixels have an alpha below 250, and the selected platform expects a solid background. A transparent PNG uploaded to a catalog that composites onto white usually looks fine, until the same asset is shown on a dark surface or in an app and the product appears to float on a grey void. Flatten it onto white first.
How many images can I check at once?
Up to 24 in one queue, each up to 15MB, in PNG, JPG, WebP, GIF, or BMP. Each is decoded and analyzed on your device in turn, and the queue shows a per-file status of Pass, Needs fixing, or Not suitable so you can spot the weak files in a photo set without opening them one by one.
Do my unreleased product photos get uploaded to run the check?
No. Decoding, downsampling, and every measurement run in the page on your own machine, which is the point for product photography that is not public yet. The only network call is a credit counter carrying the tool name.