Free browser tool

Check your product feed before you import or submit

Catch broken rows, variant dependencies, duplicate identifiers, and risky values in Shopify, WooCommerce, or Google Merchant Center product files.

Choose your product CSV

Private by design: the file stays in this browser. Only anonymous use counters are sent—never its name, size, content, or diagnostics.

Your preflight report will appear here.

What this preflight checks

CSV structureQuoted commas, line breaks, delimiters, BOM, uneven rows, and malformed quotes.
Product identityMissing names or titles, duplicate identifiers, handles, and leading-zero preservation.
VariantsWooCommerce parent relationships and Shopify option dependencies that can replace variants.
Platform valuesStatuses, booleans, prices, image URLs, product types, and publishing fields.
Spreadsheet safetyCells that may execute as formulas when opened in spreadsheet software.

Product feed tools and guides

Need an independent migration plan?

Get a reviewed field map, blocker priorities, migration-path recommendation, and staging checklist without sharing store credentials.

See the $149 catalog review

Need an apparel feed repair plan?

Get one US apparel feed reviewed with prioritized corrections and a Merchant Center resubmission checklist.

See the $149 apparel feed review

Transparent rules, not a black box

The checks follow the WooCommerce product CSV documentation, Shopify product CSV documentation, RFC 4180, and OWASP CSV injection guidance.

Before importing: keep a current store backup and review every warning. This tool does not modify your CSV or your store.