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GTIN Barcode Validator — Verify EAN, UPC & ITF-14 Numbers

Validate full GTIN-8, GTIN-12, GTIN-13, and GTIN-14 numbers against official check-digit math and length rules.

This tool renders a barcode from a number you provide. It does not issue, register, or license a GS1 identifier.

GTIN Barcode Validator

Verify check-digit math and structure for GTIN-8, 12, 13, and 14.

GS1 Standard
13 digits
Test Fixtures:
This tool renders a barcode from a number you provide. It does not issue, register, or license a GS1 identifier.
Validation Result
✓ Valid GTIN
EAN-13

Modulo-10 check digit verification passed.

Format:EAN-13 (13 digits)
Data Payload:590123412345
Check Digit:7 (Verified)
Generate Barcode Graphic
Client-Side Privacy & Standards Guarantee

Calculated entirely in your browser. GTIN data and check digits are validated locally on your device with zero telemetry or network calls.

How to Use

  1. Enter your full 8, 12, 13, or 14-digit GTIN barcode number into the input field.
  2. The validator automatically detects the format (GTIN-8, GTIN-12, GTIN-13, or GTIN-14).
  3. The tool checks the final digit against the official GS1 Modulo-10 checksum algorithm.
  4. If a mismatch is found, click 'Fix Check Digit' to instantly adopt the mathematically valid code.
  5. Use the direct link to generate and download a compliant vector barcode SVG or PNG.

About This Format

Global Trade Item Numbers (GTIN) are the foundation of international commerce, defined by GS1. Whether encoded in retail point-of-sale barcodes (UPC-A, EAN-13, EAN-8) or wholesale shipping carton barcodes (ITF-14), all GTINs conclude with an algorithmic Modulo-10 check digit. This validator confirms that an existing barcode number conforms to GS1 structural requirements before products reach retail shelves or distribution centers.

Validation & Technical Constraints

  • Accepts standard GTIN lengths: 8 digits (GTIN-8), 12 digits (GTIN-12), 13 digits (GTIN-13), or 14 digits (GTIN-14).
  • Input must contain numeric digits only (0–9).
  • Calculates and compares the actual check digit against the theoretical GS1 Modulo-10 value.

Examples

Valid EAN-13 (GTIN-13)

5901234123457

Valid UPC-A (GTIN-12)

012345678905

Valid ITF-14 (GTIN-14)

10012345678902

Frequently Asked Questions

A Global Trade Item Number (GTIN) is a globally unique identifier for trade items, developed by GS1. GTIN is the umbrella family that includes 8-digit EAN-8 (GTIN-8), 12-digit UPC-A (GTIN-12), 13-digit EAN-13 (GTIN-13), and 14-digit ITF-14 (GTIN-14).

The most common reason is a check digit mismatch (transposed or mistyped digits). If the final digit does not equal the weighted Modulo-10 sum of the preceding digits, retail barcode scanners will fail to read it.

No. This tool validates mathematical checksum compliance and length formatting. To verify whether a GTIN is officially registered and licensed to a specific company, you must query the official GS1 GEPIR database.