What is a GTIN (Global Trade Item Number)?
GTIN is the universal standard for product identification managed by GS1. It's an umbrella term that includes UPC, EAN, and ITF-14 barcodes. When you see GTIN-12, GTIN-13, or GTIN-14, they refer to the number of digits in the code. All retail barcodes (UPC-A, EAN-13, etc.) are types of GTINs. Amazon, Google Shopping, eBay, and major retailers require GTINs for product listings.
UPC-A (GTIN-12)
Universal Product Code - the standard 12-digit barcode for retail products in the United States and Canada. Required for selling on Amazon US, Walmart, and Target.
EAN-13 (GTIN-13)
European Article Number - the international 13-digit barcode standard used worldwide. Required for selling internationally on Amazon EU, UK, and global marketplaces.
QR Code
2D matrix barcode for URLs, text, contact info, and more. Scannable by any smartphone. Perfect for marketing and linking products to digital content.
PDF417
Stacked 2D barcode used on driver's licenses, ID cards, airline boarding passes, and shipping labels. Can encode up to 1,800 characters of data.
Data Matrix
Compact 2D barcode for electronics, medical devices, and small parts. Popular where space is limited. Can encode up to 2,335 characters.
ITF-14 (GTIN-14)
14-digit barcode for cartons, cases, and pallets in logistics. Essential for wholesale distribution and shipping to retailers.
Code 128
High-density barcode encoding all ASCII characters. Used in shipping labels, FedEx/UPS tracking, and inventory systems.
Code 39
Alphanumeric barcode for automotive (VIN), defense, and healthcare. Self-checking without requiring a checksum.
