Catalog Consistency Checker is a free AI tool that compares two or more product photos and reports differences in background tone, lighting, and framing. It's built for Etsy, Amazon, and Shopify sellers who shoot dozens of SKUs and need their catalog to look like one cohesive brand instead of a patchwork of mismatched photos.
What it checks
The tool looks at background color and tone, shadow direction and softness, overall brightness, and how each product is framed or cropped in the shot. It then reports which photos stand out as inconsistent compared to the rest of your set. This is text feedback, not an automatic photo editor, so you get specific notes on what to fix in your next shoot or edit.
Tips for best results
Upload photos at similar resolution so lighting and color differences are easier to spot. Include at least 3-4 images from the same catalog for a meaningful comparison, since two photos alone give less context. Mention if some photos are meant to be white-background compliance shots and others are lifestyle scenes, so the report accounts for intentional differences.
Who uses this
Amazon FBA sellers use it to confirm all white-background shots meet compliance framing before uploading a batch. Etsy sellers of candles and ceramics use it to catch inconsistent shadow style across SKUs shot on different days. Depop and Poshmark resellers run quick checks before a listing spree to make sure their backdrop looks the same across items.