Free E-commerce Utilities
Free Barcode Tools & Utilities
Free interactive calculators, converters, and structure validators for Amazon, Shopify, and retail sellers.
How Many Barcodes Do I Need?
Answer 3 quick questions to calculate the exact barcode count and recommended package for your catalog.
UPC & EAN Check Digit Calculator
Calculate or verify the final check digit for any 11-digit UPC-A or 12-digit EAN-13 barcode mathematically.
UPC-A to EAN-13 Converter
Instantly convert 12-digit US UPC codes to 13-digit EAN codes for international sales channels.
Barcode Structure & GTIN Validator
Verify structural compliance, checksum integrity, and GTIN formatting for any product barcode.