UPCGen is the simplest barcode generator on the internet. We render and generate valid UPC, EAN, ISBN, GTIN, ITF-14, Code 128, FNSKU, and Data Matrix barcodes — for sellers, warehouses, publishers, and anyone who needs a usable code in seconds.
Why we built it Every existing barcode tool is either bloated software, a confusing checkbox-soup of options, or pretends to issue "free" UPCs that collide with real registered products. We wanted one clean page that generates a valid code, downloads cleanly, and is honest about when you need a real GS1 number.
Who we're for Amazon FBA sellers printing FNSKU labels Shopify and Etsy sellers adding GTINs to listings Warehouses and 3PLs labeling outer cases (ITF-14) Self-publishers generating ISBN barcodes Pharma operators producing Data Matrix codes for DSCSA / FMD compliance Developers integrating barcode generation into their stack via API (Business plan)
About UPCgen
What is UPCgen?
UPCgen is a straightforward, web-based barcode generator that creates valid UPC, EAN, ISBN, GTIN, ITF-14, Code 128, FNSKU, and Data Matrix codes in seconds. Built for speed and simplicity, it strips away the clutter of traditional barcode software — no bloated installs, no confusing options, and no fake "free" UPCs that collide with real registered products. Every code passes GS1 standard validation and includes a correct check digit, ready for immediate download.
Who it's for
- Amazon FBA sellers — printing FNSKU labels and adding GTINs to product listings
- Shopify and Etsy sellers — generating barcodes that meet platform requirements for new listings
- Warehouse and 3PL operators — labeling outer cases with ITF-14 codes for logistics and inventory tracking
Key features
Valid codes with GS1 validation
Every barcode generated by UPCgen includes a valid check digit and passes GS1 standard validation. This ensures your codes are accepted by major platforms like Amazon, Shopify, Etsy, eBay, and Walmart without rejection.
Bulk generation and export
Generate 1 or 10,000 codes at once. Export your batch to CSV, PNG sheets, PDF, SVG, or EPS — giving you professional-grade output for both digital listings and physical print labels.
