Free tool

GTIN / EAN / UPC Validator

Check any GTIN barcode against the GS1 standard. Validates format, length, and check digit.

What this tool checks

Checks

✓ Format: digits only, no spaces or hyphens
✓ Length: must be exactly 8, 12, 13, or 14 digits
✓ GS1 check digit (mod-10 algorithm)
✓ Identifies the GTIN type (GTIN-8, UPC-A, EAN-13, GTIN-14)
✓ Extracts GS1 Company Prefix region (first 3 digits)

Does not check

✗ GS1 database registration (no live lookup)
✗ Company Prefix allocation to a specific company
✗ GTIN-12 to GTIN-13 conversion or zero-padding
✗ ISBN/ISSN relationships

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Related guides

Glossary

GTIN vs EAN vs UPC: What Product Data Teams Need to Know

A clear explanation of GTIN, EAN, and UPC numbering systems, their history, formats, and how they relate to each other in product data management for electrical distributors.

Article

Common Barcode Errors in Supplier Feeds and How to Fix Them

Identify and fix the most frequent barcode errors in electrical supplier data feeds: wrong check digits, truncated codes, formatting issues, and UPC/EAN confusion.

Comparison

GLN vs GTIN: Understanding GS1 Identifier Types

A clear comparison of GLN and GTIN identifiers: what each identifies, their formats, where they appear, and how they work together in product data and supply chain operations.