Onepage48 Catalog CSV Preflight

Check a copy of a product CSV before importing. The general checker flags duplicate SKUs, missing product names, invalid non-negative integer prices or stock, and image-URL syntax issues. Original files stay unchanged; it does not connect to or import into a store.

A free browser preview checks up to 20 rows. The existing Korean/English ZIP is KRW14,900 once, with up to 1,000 data rows, 100 columns and 2 MiB, UTF-8/BOM or explicitly selected CP949, and CSV/TXT findings. No XLSX, automatic fixes, URL availability checks or import-success guarantee. Developed with AI assistance; no customer outcomes are claimed. Final tax and total appear at checkout.