Barcodes
Barcodes carry information for automatic identification and data capture
Barcodes are symbols that can be scanned electronically using laser or camera-based systems. They carry information about the object to which it is attached in a machine readable format. As opposed to manual data entry, which is tedious and prone to inaccuracies, barcodes enable automatic data capture with 100% accuracy.
GS1 barcodes carry information, including GS1 Identification Keys, about physical objects like products, assets, logistic units and shipments, or services and locations at any point in the supply chain. They can also include extended identifiers such as batch/lot number and expiry dates for food traceability and safety.
An item incorporating a barcode with prefix number ‘890’ signifies ownership by an Indian organisation.
GS1 manages several types of barcodes including one-dimensional (1D) barcodes such as GS1 EAN/UPC, GS1-128, ITF-14 and GS1 DataBar, and two-dimensional (2D) barcodes such as GS1 DataMatrix and GS1 QR Code etc. Each is designed for use in a different situation.
EAN/UPC Barcodes
Instantly-recognisable, EAN/UPC barcodes are printed on virtually every consumer product in the world. They are the longest-established and most widely-used of all GS1 barcodes.
The EAN/UPC barcode family has transformed the world of retail. See how it works
Types of EAN/UPC barcodes
EAN-13 | ![]() |
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UPC-A |
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EAN-8 |
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UPC-E |
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GS1 DataBar barcodes
Compact 1D barcodes that can hold a lot of information. DataBar barcodes are often used on coupons and to label fresh foods. These barcodes can hold information like an item's batch number or expiry date, in addition to other attributes used at the point-of-sale such the item weight.
DataBar barcodes are often used in retail and can be read by laser scanners. See how it works
DataBar Omnidirectional | ![]() |
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DataBar Stacked Omnidirectional | ![]() |
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DataBar Expanded Stacked |
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DataBar Expanded | ![]() |
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1D barcodes used in general distribution and logistics
GS1-128 and ITF-14 are highly versatile 1D barcodes that enable items to be tracked through global supply chains. The GS1-128 barcode can carry any of the GS1 ID keys, plus information like serial numbers, expiration dates and more. The ITF-14 barcode can only hold the Global Trade Item Number (GTIN) and is suitable for printing on corrugated materials. See how it works
ITF-14 | ![]() |
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GS1-128 | ![]() |
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Two-dimensional (2D) Barcodes
Two-dimensional (2D) barcodes look like squares or rectangles that contain many small, individual dots.
A single 2D barcode can hold a significant amount of information and may remain legible even when printed at a small size or etched onto a product. 2D barcodes are used in a wide range of industries, from manufacturing and warehousing to logistics and healthcare. See how it works
Types of 2D Barcodes
GS1 Datamatrix |
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GS1 QR Code |
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