UPCGen
Free barcode generator for UPC, EAN, ISBN and more
About UPCGen
UPCGen is a free online barcode generator aimed at sellers and publishers who need barcodes that work on marketplace listings. It creates UPC-A, EAN-13, ISBN, ITF-14, Code 128, FNSKU and Data Matrix codes, and the site says each code has a valid check digit and follows GS1 standard validation.
The tool is built around common selling channels such as Amazon FBA, Walmart, Shopify, Etsy, eBay and Amazon KDP. A short question flow helps users pick the right barcode type for their platform before generating it, which suits sellers who are unsure which format a marketplace expects.
Registration is free and allows a small number of codes each day. Paid plans add bulk CSV uploads, SVG, PDF and EPS exports, Avery and FBA label sheets, and a REST API for larger workflows.
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