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.
- No upload
- No account
- No data conversion
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.
Product feed tools and guides
Google Merchant Center apparel variant preflight
Check a US apparel text data source for item groups, color, size, gender, age group, price, and identifier risks.
Shopify to WooCommerce migration preflight
Find variant, SKU, status, image, and field-mapping risks before moving a catalog.
Shopify to WooCommerce product CSV checklist
Map fields, rebuild variants, test in staging, and reconcile the catalog before cutover.
Shopify variant option dependencies
See which current columns belong together before an overwrite can replace variants.
WooCommerce variation parent links
Check Parent, Type, SKU, and attributes before importing variable products.
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.