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)
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.
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.
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.
Generate one code every 24 hours without signing up. Register for free to unlock five codes daily. Subscribe for higher volume limits and access to the API for programmatic integration.
Step-by-step guides walk you through adding barcodes to Amazon, Shopify, Etsy, eBay, Walmart, and Amazon KDP listings — removing guesswork from the setup process.
"We wanted one clean page that generates a valid code, downloads cleanly, and is honest about when you need a real GS1 number."
UPCgen's honesty sets it apart from other free tools. It doesn't pretend to issue registered UPCs that could cause collisions with real products. Instead, it clearly separates free generation for testing and low-volume use from the need to purchase legitimate GS1 prefixes for commercial retail. This transparency, combined with a no-signup option and bulk exports, makes it a practical choice for sellers who just need a working code fast.
You're an Amazon FBA seller, Shopify merchant, self-publisher, or warehouse operator who needs valid barcodes quickly — without installing software, navigating endless settings, or risking code collisions. UPCgen is especially useful if you need bulk generation, platform-specific guidance, or a simple API for automated workflows.
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Maker
FADI MAMAR
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upcgen.com
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