SlateSKU Free Supplier CSV Checker

A free browser-based checker for store owners preparing supplier CSVs for new, simple Shopify product drafts. Review column mappings and flagged issues before exporting draft data for manual review. CSV contents are processed in the browser, not uploaded to the SlateSKU server. No store login or installation is needed. Intended for lawful, nonregulated goods, with one row per SKU. It does not import into a live store, support variants or update existing products, and it is not affiliated with or endorsed by Shopify. Do not enter personal or confidential information. The free checker is usable now; optional paid preparation is not an activated checkout or a delivery promise.