What is the difference between GTIN and UPC?

GTIN (Global Trade Item Number) is a general term for barcodes like UPC, EAN, etc. UPC is mainly used in North America, while EAN is used in Europe and Asia. GTIN-14 is a 14-digit global trade item number format that supports nested packaging levels (e.g., unit-case-pallet), especially suitable for e-commerce sellers who need to manage complex product lines.

Can the generated GTIN be used on Amazon?

The GTIN generated by this tool conforms to GS1 standards and can be used for product testing and development. However, for formal commercial use, you need to apply for an official prefix code through GS1 official channels. Test usage is fully acceptable and can help you familiarize yourself with the Amazon listing process and GTIN requirements.

How to apply for official GTIN?

For formal commercial use, you need to apply through the official GS1 channels. Please visit gs1.org, select your local country/regional branch, fill in the application form and pay the corresponding fees. The GS1 prefix code is your globally unique identifier, and different product quantities require different quantities of prefix codes.

What is a check digit? Why is it important?

The check digit is the last digit of the GTIN barcode, calculated through a specific algorithm (GS1 standard algorithm) to verify the correctness of the entire barcode. This algorithm ensures the accuracy of the barcode during entry, scanning, or transmission, reducing human errors.

Why choose GTIN-14 format instead of GTIN-13?

GTIN-14 supports nested packaging levels for products (e.g., unit-case-pallet), and each additional packaging level digit can distinguish more product variants. This format is especially suitable for cross-border e-commerce sellers who need to manage complex product lines and various packaging specifications. GTIN-13 is suitable for products with a single packaging level.

How long is a GTIN valid?

Once a GTIN is assigned to a product, it remains valid as long as the product continues to be sold. If a product is discontinued or no longer sold, the corresponding GTIN should also be discontinued. Proper management of GTINs helps maintain the accuracy and traceability of the product database.

Barcode Tools1 min

GTIN Barcode Generator

Free GTIN-14 barcode generator designed for e-commerce

Important Notice

⚠️ Warning

GTINs generated by this tool are for testing purposes only (you know the drill - use them for testing your store and online platforms). For offline retail commercial use, please apply for official GTINs through GS1.

Algorithm Features

GS1 standard check digit calculation algorithm
Millisecond timestamp precision

GTIN-14 Test Code Generator

Generate GS1-compliant GTIN-14 test barcodes

Quantity

Maximum 10 GTINs per batch

Guest limit: Maximum 10 GTINs per batchSign in to unlock higher limits

How to Use

Select Country Code

Select your GS1 prefix code for your country or region, which is the foundation for assigning globally unique product identifiers. The GS1 prefix is allocated by the international GS1 organization to ensure each product has uniqueness worldwide.

Enter Product Code

Enter your unique product identification code, and the system will automatically calculate the check digit to ensure barcode validity. The product code is used to distinguish different products and serves as the unique identifier for your products in the global database.

Generate Barcode

Click the generate button to get GTIN-14 barcodes, you can download PNG images or copy barcode data for your product packaging. The generated barcodes conform to GS1 standards and can be directly used on platforms like Amazon and Google Shopping.

Validate Barcode

Use a barcode scanner to verify the generated GTIN is correct and meets the requirements of major e-commerce platforms. We recommend testing and scanning before actual use to avoid compatibility issues when listing products.

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