How to Create a Barcode Online

Creating a barcode image is easy with online tools, but there is an important distinction between generating a barcode graphic and owning a valid, registered product code. Understanding this difference helps businesses avoid producing codes that will not be recognised in retail.

Generating a barcode image

Many free online generators can turn a number into a barcode picture. The typical process is:

Choose the barcode format, such as EAN-13 for retail products.
Enter the numeric code you want to encode.
Let the tool calculate the check digit and produce an image.
Download the image and place it on your packaging or label.

Why a registered code is different

An online generator only draws the bars for whatever number you provide. It does not make that number unique or officially assigned to you. For a product barcode to be globally unique and accepted by retailers, the underlying number must come from a GS1 company prefix registered to your business. Using a random or borrowed number can cause conflicts with other companies' products.

Recommended approach

Businesses selling through retailers should first register a GS1 company prefix, then create individual product numbers within that prefix, and only afterwards use a generator to produce the printable image. This ensures each code is both valid and unique.

Frequently asked questions

Can I make a barcode for free online?

You can generate a barcode image for free, but the image is only valid for retail if the number behind it comes from a registered GS1 prefix.

Do I need to register to sell in shops?

Generally yes. Retailers expect products to carry unique GS1 codes, which requires registering a company prefix.

What happens if I invent a random number?

It may clash with another company's product and be rejected, because it is not officially assigned to you.

How LTV Law helps

LTV Law helps businesses register a GS1 company prefix so the barcodes they generate are unique and retail-ready; to start, contact our team.

This article is for general information only and does not constitute legal advice.