Free tools
Free tools to manage your product catalog
Simple, free tools for your barcodes, prices and product listings. No account, no install, everything runs in your browser.
Barcodes and EAN
Calculate an EAN check digit
Missing the last digit of a barcode? We compute it and rebuild the full code.
Use the toolCheck an EAN code
Paste one code or a whole list: we tell you which are valid, and why the others are not.
Use the toolFind a barcode's country
An EAN prefix tells you which organisation issued it. Find it at a glance.
Use the toolConvert UPC, EAN and GTIN
Turn a US UPC-A into an EAN-13, or build the GTIN-14 of a shipping case.
Use the toolFind a product's EAN
Paste a product page URL and get its EAN code, brand and name.
Use the toolCatalog and product listings
Calculate margin and selling price
Margin, markup, suggested price: the three numbers that decide whether a product pays off.
Use the toolCheck a product title
Length, capitals, promotional wording: what Google Merchant and Shopify reject.
Use the toolProduct listing from a URL
Paste a product page URL: get a title, description and attributes ready to export to your e-commerce platform or to Claude.
Use the toolSave time
Your codes are clean. Your product listings still take hours
Refect reads your supplier invoices and photos, then builds complete listings — title, description, price, stock, barcodes — ready to publish on Shopify or Square.
Frequently asked questions
Are these tools really free?
Yes. No account, no usage limit, no card. Everything is computed in your browser, so your data never leaves it.
Can I use them for my professional store?
Yes. They follow the GS1 rules used by Shopify, Amazon, Google Merchant Center and retail chains.
What should I do once my codes are checked?
Refect turns your supplier invoices and photos into complete product listings, published straight to Shopify or Square.