Dev

Founder and editor

Dev is the founder and editor of Free Barcode Generator. He builds free web tools and works in search engine optimisation, and he reviews every page on this site before it is published.

What he builds

The site has 13 free tools, from the barcode generator to the check digit calculator. They run in your browser, so the data you type is not sent to a server.

How each tool is checked

• Barcodes are drawn with bwip-js, an open-source library that follows the ISO/IEC and GS1 symbology rules.
• Check digits are tested against worked examples published by GS1 UK and GS1 member organisations.
• Every barcode type, the bulk list reader and the label sheet layouts are covered by 99 automated checks that run before each release.
• Each page is opened on a phone-sized and a desktop-sized screen before it is published.
• Sizes and rules on the pages come from GS1 and ISO/IEC documents, named in the text where they are used.

Contact

Email contact@freebarcodegenerator.online to report a barcode that does not scan or to suggest a barcode type. Last reviewed 2026-11-13.