Free tools
Practical tools for sellers and store developers: barcode checks backed by our product catalog, structured data and product feed validation. All free, no signup.
Barcode lookup
Check which product hides behind an EAN/GTIN and compare its prices.
Barcode validator
GS1 checksum (EAN-8, UPC-A, EAN-13, GTIN-14) with a step-by-step calculation.
Schema.org validator (JSON-LD)
Paste your Product JSON-LD and see which fields Google needs are missing.
Product feed validator
Google Merchant XML, JSON and CSV — structure, required fields, column consistency.
Product data extractor
See what product data (JSON-LD, OpenGraph, microdata) your page exposes to crawlers.
Price history
Find a product by barcode or ID and jump to its price history.
Selling online? Publish your price list for free and let AI agents find your offers:
Agent Commerce API