GTIN Barcode Generator
GTIN (Global Trade Item Number) barcode generator creates product identification codes used globally in retail. It generates 12-14 digit numbers with automatic check digit calculation, producing standardized barcodes for product labeling and inventory management.
Generate Barcode
GTIN Check Digit Formula
2. Sum all digits in even positions
3. Add both sums
4. Subtract from next multiple of 10
Example: For 123456789012C → (1+3+5+7+9+1)×3 + (2+4+6+8+0+2) = 84 + 22 = 106 → Check digit = 4 (110-106)
Advantages & Disadvantages
Advantages: Standardized global identification improves supply chain efficiency. Reduces errors in manual data entry. Enables accurate inventory tracking across international markets. Compatible with POS systems worldwide. Supports product authentication. Scalable for various product types. Cost-effective implementation. Required for major retailers. Machine-readable format increases checkout speed.
Disadvantages: Requires registration fees for official numbers. Limited to numerical data only. Fixed length restrictions. Check digit calculation complexity. Potential duplication in unofficial use. Requires barcode quality control. No inherent product information. Dependent on database connectivity. Regular updates needed for new products. Limited customization options. Small businesses may find implementation challenging without technical support.
GTIN-14 Barcode Generator
Our GTIN-14 generator creates 14-digit barcodes for shipping containers and logistics units. It calculates the check digit automatically and produces ITF-14 or GS1-128 barcode formats suitable for carton-level labeling in supply chains.
GTIN 12 Barcode Generator
The GTIN-12 generator produces UPC-A barcodes for retail products in North America. It accepts 11-digit numbers and adds the check digit, creating standard 12-digit barcodes used for consumer packaged goods and retail items.
14 Digit GTIN Barcode Generator
This tool generates 14-digit GTINs for case-level packaging. Enter 13 digits to get complete GTIN-14 with proper check digit. Used in wholesale distribution, compatible with GS1 standards for pallets and large shipments.