CSV validator
Find structural errors, duplicate headers, inconsistent rows, and spreadsheet risks.
A messy file? You’re in the right place.
Drop a product CSV here. We’ll help you make sense of it.
Understand the problem before changing your file.
Every diagnosis includes the affected record and column, an explanation, and a rule source. Review a before/after diff, accept an eligible fix, or supply a value you know is correct. Changes run through validation again.
What this tool can check
- Quoted delimiters, record widths, duplicate headers, malformed CSV, and risky spreadsheet formulas.
- String preservation for identifiers, unknown columns, Unicode, and multiline descriptions.
What still needs your judgment
Golanto does not know your store’s existing catalog, inventory locations, approved taxonomy, or account-specific requirements. It never invents prices, identifiers, inventory, units, or compliance claims. Passing these checks does not guarantee marketplace acceptance.
Use a backup and test a small import first. Shopify update files can clear existing values when supplied fields are empty.
Read the Shopify support details · Browse practical import guides