A serious data tool for OpenCart 4 stores. Upload a CSV, see the first five rows, and map each column to an OpenCart field with a dropdown — no rigid template to fight with. Run a dry run first: every row is validated exactly as the real import would validate it, and you get a per-row list of what is wrong, without a single record being written. When you are happy, run the import; it processes a configurable number of rows per background request with a live progress bar, so a 50,000 row file finishes on shared hosting instead of dying at the PHP timeout. Imports write the full multi-table reality of OpenCart data: product, product_description, product_to_store, product_to_category, product_image, product_related, product_code and seo_url for products; category, category_description, category_to_store and a rebuilt category_path for categories; hashed passwords for customers. Exports let you tick exactly the fields you want and produce UTF-8 CSV with a byte order mark so Excel opens accented characters correctly. Uploaded files and generated exports live in the OpenCart storage directory, out of reach of the web, and are cleaned up automatically. Admin only, with permission checks on every route.