GTIN Generator & Validator
Generate and validate GS1 barcodes: GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), GTIN-14. All processing happens in your browser — no data is sent to any server.
Options
Digits only. Remaining payload digits will be randomised.
Generated GTINs
GTIN Format Reference
| Type | Length | Also Known As | Common Use |
|---|---|---|---|
| GTIN-8 | 8 digits | EAN-8 | Small retail items, limited space |
| GTIN-12 | 12 digits | UPC-A | US/Canada retail, point-of-sale |
| GTIN-13 | 13 digits | EAN-13, ISBN-13 | International retail, books, magazines |
| GTIN-14 | 14 digits | ITF-14, SCC-14 | Logistics, shipping cartons, cases |
Input GTINs
Validation Results
Enter GTINs on the left and click Validate.
How to Use the GTIN Generator
Generating GTINs
- Select the GTIN type (8, 12, 13, or 14 digits)
- Optionally enter a company prefix to fix the leading digits
- Set the quantity (up to 500 at once)
- Click Generate — the check digit is calculated automatically
- Use Copy or Download to export the results
Validating GTINs
- Switch to the Validate tab
- Paste one or more GTIN codes (one per line or comma-separated)
- Click Validate to check each code
- Results show the check digit, GS1 country prefix, and a barcode preview
What is a GTIN?
A Global Trade Item Number (GTIN) is a GS1-standard identifier used to uniquely identify trade items (products) worldwide. GTINs are encoded in barcodes and used at point-of-sale, in supply chains, and for e-commerce product listings. The last digit of every GTIN is a check digit calculated from the preceding digits using the GS1 Modulo-10 algorithm.
Privacy & Security: All GTIN generation and validation happens entirely in your browser. No data is sent to any server.