Amazon Marketplace Feed Validator
Validate your Amazon Marketplace flat-file feed for required ASIN-linked fields, GTIN compliance and image specs.
Amazon requires the feed.txt or Amazon flat-file format. Validates required ASIN-aligned fields, GTIN compliance, image dimensions and price formatting per category.
- • Amazon's main image must be ≥1000×1000 and white background (FBA enforces).
- • Title spec varies by category — apparel allows 200 chars, books less.
- • Use the standard flat-file template for the category; this validator covers the universal fields.
About this tool
Amazon's flat-file feed format is unforgiving, wrong field types or missing GTINs trigger silent rejection. This validator checks required fields, title length (200 char cap), main-image dimensions and product-id-type pairing.
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