
Barcodes are an essential part of modern retail, helping stores run smoothly by storing important product data in a machine-readable format. In Australia, barcodes are managed by GS1, which assigns unique manufacturer ID numbers that form the basis of Universal Product Codes (UPCs). While GS1 membership is not free, there are free barcode generators available online, such as Shopify's barcode generator, which allows users to create and print custom barcodes for their businesses. However, it's important to note that major Australian retailers like Woolworths and Coles mandate barcodes from a standards body like GS1, and resold barcodes may not be accepted.
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What You'll Learn

Barcodes in retail
Barcodes are an essential component of the retail industry, serving as a tool to store and retrieve critical product data. Developed in the 1970s, their initial commercial popularity was in supermarkets, but they soon spread to other retail sectors. Today, barcodes are ubiquitous, and their standardised variations cater to specific use cases.
In Australia, the standards body for barcodes is GS1. To obtain a barcode, one must become a GS1 Australia member. GS1 assigns a manufacturer ID number, which is the first number of the 12-digit UPC, followed by uniquely assigned product numbers. GS1 offers member pricing and services such as Barcode Check, Photography, National Product Catalogue, and Recall, aiding businesses in supply chain management and product data maintenance.
For those seeking to purchase barcodes in Australia, there are resellers like Oz Barcodes and Australian Barcodes. Oz Barcodes offers EAN-13 and UPC-A barcodes starting at $32.95, providing instant delivery and high-quality digital image formats. Australian Barcodes provides EAN13 barcode numbers, thermal barcode printers, and expertise to help companies of all sizes with their barcode requirements.
It is important to note that major Australian retailers like Woolworths, Coles, and Super Retail Group mandate barcodes from standards bodies like GS1. Resold barcodes may not be accepted by these retailers. Additionally, UPCs purchased from third-party sellers may be considered invalid by some retailers, including Amazon, which verifies UPCs against the GS1 database.
Barcodes play a pivotal role in retail, enabling efficient inventory management, product tracking, and seamless sales processes. They are an indispensable tool for any business looking to streamline its operations and provide customers with a smooth shopping experience.
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Barcode dimensions
Barcodes are machine-readable patterns that can be scanned electronically with a camera or laser device. They are used to track inventory and come in different types, including EAN-13, UPC-A, and UPC.
The dimensions of a barcode are important to ensure that it can be scanned accurately. The allowable magnification range for an EAN-13 barcode symbol is 80%–200% (X-dimension: 0.26 mm–0.66 mm). The minimum allowable magnification is 75% (X-dimension: 0.25 mm) for on-demand print processes. The overall width of the barcode, including the left and right quiet zone dimensions, must be considered to ensure proper scanning.
UPC barcodes have a nominal size of 100% magnification, with overall dimensions of 1.46 inches by 1.02 inches. The sizing range for UPC magnifications is between 80% and 200%.
It is important to adhere to UPC guidelines to ensure that barcodes can be easily read by digital scanners. Resizing barcodes can affect their scannability, so it is crucial to follow the specified dimensions.
In Australia, if you are in retail, you will need a licensed barcode number using the EAN or UPC symbology. The standards body, GS1 Australia, provides licensed barcode numbers. However, if you are not in retail, you can use any symbology except EAN and UPC codes without purchasing licensed numbers.
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GS1 Australia membership
GS1 is a neutral, not-for-profit organisation that develops and maintains the most widely used global standards for efficient business communication. They are best known for the barcode, which has been named by the BBC as one of the "50 things that made the world economy". GS1 standards and services improve the efficiency, safety and visibility of supply chains across physical and digital channels in 25 sectors. With local member organisations in 112 countries, 1.5 million user companies and 6 billion transactions every day, GS1 standards create a common language that supports systems and processes across the globe.
GS1 Australia is the only officially licensed barcode provider with the authority to supply GTINs for the Amazon marketplace in Australia. They work with companies from many industries, associations, regulatory agencies and government bodies to identify challenges and implement solutions to help businesses create efficient value chains. GS1 Australia has a strategic partnership with the Drinks Association to drive industry standards development and adoption to improve business and supply chain efficiency in the drinks industry.
GS1 Australia's membership includes small businesses and large global brands. Their standards can power businesses to trade seamlessly, efficiently and safely, both digitally and physically. Whether selling products in-store or online, a barcode or GTIN is necessary. GS1 is the only authorised provider of authentic and unique numbers. Next-generation barcodes are reducing food waste and driving sustainability to empower businesses and consumers to make informed choices for a healthier planet.
GS1 Australia offers a dynamic barcode with almost limitless potential, providing brands with the power to connect directly to the hearts and minds of consumers. Information on barcode dimensions is available on the GS1 website. EAN and UPC are international standards and will work anywhere these codes are used, including Australia, the UK, Europe, Asia, South America, the Middle East, Canada, Mexico and the US.
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UPCs and GTINs
If you are in retail in Australia, you will need a licensed barcode number, using the EAN (or UPC) symbology. The standards body for Australia is GS1 – they will license you with a set of numbers. GS1 will assign a manufacturer ID number, which is the first number of the 12-digit UPC. The remaining numbers are uniquely assigned product numbers. GS1 assigns these numbers to your products once you upload criteria for certain fields, like name, quantity, and description. Amazon has confirmed it checks to ensure that all GTINs (UPCs) loaded into its system are authentic barcodes from GS1. UPCs that do not match the GS1 database will be considered invalid.
UPCs come in different variations, each designed for specific uses. The standard UPC system encodes 12 numeric characters, but there are several variations, including UPC-E, UPC-2, and UPC-5. One perk of using UPC codes is the ability to track products across different stores and online channels. UPC is a general term for the barcode symbol used to track items in stores.
If you are not in retail, you do not need to purchase licensed numbers and you are free to use any symbology except EAN and UPC codes.
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Barcode generators
If you are in retail in Australia, you will need a licensed barcode number, using the EAN (or UPC) symbology. The standards body for Australia is GS1 – they will license you with a set of numbers. Major Australian retailers like Woolworths, Coles, and Super Retail Group will not accept barcodes from other organisations that resell barcodes.
There are free barcode generators available online, but these are not suitable for retail use. The barcode numbers generated by these websites are not legitimate and are basically made up. They are only suitable for personal use. These barcode generators often do not let you change the size of the barcode and produce low-quality images that can be difficult to scan.
If you are looking to purchase barcodes in Australia, Oz Barcodes provides high-quality retail barcode numbers (EAN-13 and UPC-A) to individuals, sole traders, and businesses. Barcodes start at $32.95, and you will receive your barcode immediately upon checkout.
Barcode Direct is another option for purchasing barcodes in Australia. They are Australia's leading experts in barcoding for healthcare, government, NGOs, education, and retail.
There are also free online barcode generators available, such as the one provided by TEC-IT. This generator can be used as part of a non-commercial web application or website to create barcodes, QR codes, and other 2D codes with your own data. However, in return for using the generator, TEC-IT asks that you implement a backlink to their website on your website.
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Frequently asked questions
If you are in retail, you will need a licensed barcode number using the EAN (European Article Number) or UPC (Universal Product Code) symbology. Barcodes in Australia can be purchased from companies such as Oz Barcodes, GS1 Australia, and Australian Barcodes.
The cost of barcodes in Australia varies depending on the provider and the type of barcode. Oz Barcodes offers barcodes starting at $32.95, while Australian Barcodes provides EAN13 barcodes with free electronic barcode images in TIF and EPS formats. GS1 Australia offers membership with access to member pricing on barcode services.
If you are not in retail, you can use any symbology except EAN and UPC codes without purchasing a license. You can generate custom barcodes for free using barcode generators like Shopify's barcode generator, which allows you to download PNG versions of your barcode. Additionally, if you only need barcodes for internal purposes, you can create them using a free barcode font in Excel and print them on A4 label paper.


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