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About

About freebarcodetools FBA

freebarcodetools FBA is a set of free, browser-based barcode and label tools for Amazon FBA sellers.

Free No login Runs in your browser
What the site does

Free tools for FBA barcodes and labels

FNSKU Barcode GeneratorTurns an FNSKU from Seller Central into a Code 128 barcode label you can download.
2D Box Content BuilderCreates a PDF417 box content label for a carton in your shipment.
Batch CSV LabelsMakes labels in bulk from a CSV file and downloads them as one PDF.
PDF to ThermalConverts Amazon's label PDF for a thermal label printer.
A4 Offset PrintingLets you start printing from any position on a partly used A4 label sheet.
Amazon FBA Barcode CheckerAsks up to 5 questions to show whether an Amazon barcode (FNSKU) or a manufacturer barcode is the likely route for your product.
Who it's for

Sellers, and the people who prep their stock

Resellers

Generate and print FNSKU labels for the units you send to FBA.

Brand owners and private-label sellers

Check whether a manufacturer barcode may be an option for your products, or make FNSKU labels when it is not.

Prep centres and virtual assistants

Make labels for many SKUs at once from a CSV, and print them on thermal rolls or A4 sheets.

Our sources

How the barcode guidance is researched

Amazon's barcode rules change, and much of the detail sits behind a Seller Central login. This is how the site decides what to say.

01
Amazon first, then GS1

Barcode guidance is based on Amazon's own announcements and Amazon staff replies first (most Seller Central help pages need a login), then on GS1, the organisation that issues UPC and EAN barcodes. Seller-forum posts by Amazon staff are named as such in the source list. Other sources, such as industry news, are treated as secondary.

02
Sources and dates you can see

Every rule the FBA Barcode Checker uses lists its sources and the date they were checked. Each result based on a rule shows those sources and the ruleset version. Compliance guides, such as FNSKU vs UPC vs EAN, show a "Last reviewed" date and their sources.

03
Cautious where it can't be verified

Where something cannot be verified, for example because an Amazon help page needs a Seller Central login, the site says so or uses cautious wording such as "Amazon's guidance indicates" rather than guessing.

See it in practice: the FBA Barcode Checker and FNSKU vs UPC vs EAN.

Good to know

Limits and privacy

What the site doesn't do

•It is not affiliated with Amazon.
•Its barcode guidance is guidance, not Amazon policy. Check Seller Central for the requirements on your account.
•It doesn't issue GTINs, UPCs or EANs. GS1 does.
•It can't check your printed labels. Test-scan a printed label before you label your stock.

Privacy

Barcode and label processing runs in your browser, with no product data sent to our servers.

Read the privacy policy →
Who builds it

Who builds freebarcodetools FBA

Built by a UK-based FBA practitioner. The site is built and maintained by one person, Maruf. Corrections and feature requests go to the same place: the contact page.

Spotted something wrong or out of date?

Send a correction through the contact page. Include the page and, if you can, a link to the Amazon source.