Feed Doctor· pre-flight for Google Merchant Center

Free tools for Shopify merchants

Quick, free checks for the product-data problems that get your items rejected by Google — no sign-up, nothing uploaded.

Free GTIN / UPC / EAN Barcode Validator

Paste your barcodes and instantly check each one against the real GS1 check-digit math — the same validation Google runs.

Free Google Shopping Product Title Checker

Paste your product titles and catch what Google rejects — too long, ALL CAPS, or promotional text — plus the ~70-character display cut-off.

Free Google Shopping Title Builder

Enter your brand, product and a few attributes and get a clean, front-loaded title in the format Google rewards — compliant and within the limits.

Checking your catalog by hand?

Feed Doctor scans every product in your Shopify catalog automatically — GTINs, titles, images, descriptions, prices and the other fields Google rejects — before you push the feed.

Try Feed Doctor free for 7 days →