Quality · Free tool

Free GS1 barcode verifier, online

Check a barcode against GS1 standards before plates are made: magnification, bar width reduction, quiet zones, colour contrast and minimum height.

Open the Barcode Verifier → Free 7-day trial · no card needed · start free trial

What it does

The Barcode Verifier reads a barcode straight out of your artwork PDF and checks it against GS1 standards before you commit to plates: check digit, magnification, bar width reduction (BWR), quiet zones, colour contrast and minimum bar height. It measures the X-dimension directly from the file rather than trusting a label, and it models red-light reflectance so a barcode printed in a low-contrast colour is caught on screen instead of at the retailer's distribution centre. A barcode can scan perfectly on an office scanner and still fail the DC's verifier, this tool catches those failures in thirty seconds, free for 7 days in your browser.

How it works

1

Upload artwork

Drop in the PDF containing your barcode.

2

Read the GS1 report

See pass, warn and fail on every parameter.

3

Fix before you plate

Adjust magnification, BWR or colour, then re-check.

Frequently asked questions

Which barcode types can it verify?

Common retail and logistics symbologies including EAN/UPC, ITF-14 and GS1-128.

Does it check colour and contrast?

Yes. It models red-light reflectance so low-contrast colour combinations are flagged before printing.

Is it free to use?

Yes, start with a free 7-day trial, no card needed. After the trial it is R899/mo (Pro) or R2,499/mo (Studio); see the pricing page for details.

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