UPCgen

UPCgen is the simplest and most trusted barcode generator on the internet, designed to get you a valid, usable barcode in seconds! We took the frustration out of barcode creation by building a single, clean page that generates valid UPC, EAN, ISBN, GTIN, ITF-14, Code 128, FNSKU, and Data Matrix barcodes without any bloated software or confusing options. Whether you are an Amazon FBA seller printing FNSKU labels, a Shopify seller adding GTINs to product listings, a warehouse operator labeling outer cases with ITF-14, a self-publisher generating ISBN barcodes for KDP, or a pharma operator producing Data Matrix codes for DSCSA compliance, UPCgen has you covered. Every code we generate includes a valid check digit and passes GS1 standard validation, so you can be confident your barcodes will work on Amazon, Shopify, Etsy, eBay, and Walmart supplier portals. We are honest about when you need a real GS1 number versus when a generated code is sufficient, and we offer bulk generation for up to 10,000 codes at once with exports to CSV, PNG sheets, PDF, SVG, or EPS. Best of all, you can generate your first code completely anonymously with no signup required, and registration is free for more daily codes. UPCgen is the barcode tool that finally gets it right!

Valid and Platform-Approved Barcodes

Every barcode generated by UPCgen includes a perfectly calculated check digit and passes rigorous GS1 standard validation. This means your codes are immediately compatible with major ecommerce platforms like Amazon, Shopify, Etsy, eBay, and Walmart supplier portals. No more rejected listings or barcode errors that slow down your business! We handle the complex validation math behind the scenes, so you get a reliable, scannable code every single time.

Bulk Generation with Professional Export Options

Need one barcode or ten thousand? UPCgen handles it all with ease! Generate up to 10,000 valid barcodes in a single batch and export them in multiple professional formats including CSV for inventory management, PNG sheets for easy printing, PDF for labels, SVG for scalable graphics, and EPS for high-resolution print production. This feature is a game-changer for warehouses, 3PLs, and sellers managing large product catalogs.

Anonymous and Free Tier for Quick Access

You can generate your first barcode completely anonymously with no signup required, and you get one free code every 24 hours. If you need more, registration is free and unlocks five codes every 24 hours. This low-friction access means you can test the tool, generate a single label for a new product, or evaluate the quality of our barcodes before committing to a subscription. No credit card, no hassle, just instant barcode generation!

Dedicated Generators for Every Barcode Type

UPCgen provides specialized generators for every major barcode format including UPC-A, UPC-E, EAN-13, EAN-8, ISBN, ITF-14, Code 128, FNSKU, and Data Matrix. Each generator is optimized for its specific use case, ensuring correct formatting, proper digit placement, and platform-specific requirements. Whether you need a standard retail barcode or a complex pharmaceutical Data Matrix code, the right tool is just a click away.

Amazon FBA Sellers Printing FNSKU Labels

Amazon FBA sellers can generate compliant FNSKU barcodes instantly using UPCgen, eliminating the need for expensive software or confusing third-party tools. Simply select the FNSKU generator, enter your identifier, and download a clean, scannable label ready for printing and application to your products. This streamlined workflow saves hours of time and ensures your inventory is properly labeled for Amazon's fulfillment centers, reducing the risk of receiving errors or storage issues.

Shopify and Etsy Sellers Adding GTINs to Listings

Online sellers on Shopify, Etsy, and eBay can use UPCgen to generate valid GTINs and UPC barcodes that meet platform requirements for product listings. Adding a correct barcode to your product pages improves search visibility, enables Google Shopping integration, and builds customer trust. With UPCgen, you can generate the exact barcode format your marketplace requires and add it to your listings in minutes, helping you sell more products with less friction.

Warehouses and 3PLs Labeling Outer Cases with ITF-14

Warehouse operators and third-party logistics providers can generate ITF-14 barcodes for outer case labels using UPCgen's dedicated generator. These barcodes are essential for tracking pallets and shipping containers through the supply chain, and they must be formatted correctly to scan with industrial barcode readers. UPCgen makes it easy to produce professional ITF-14 labels in bulk, ensuring your logistics operations run smoothly and your inventory is always traceable.

Self-Publishers Generating ISBN Barcodes for KDP

Self-publishers using Amazon KDP, IngramSpark, or other print-on-demand services can generate compliant ISBN barcodes with UPCgen. Simply enter your ISBN number, and the tool automatically calculates the correct check digit and formats the barcode for book covers. This eliminates the need for expensive graphic design software or specialized barcode tools, allowing authors to publish their books faster and with professional-quality barcodes that meet retailer requirements.

UPCgen offers a transparent and flexible pricing structure to fit different needs. The free tier allows anonymous generation of one barcode every 24 hours with no signup required. Registering for a free account unlocks five codes every 24 hours. For users who need more, subscription plans provide unlimited barcode generation, bulk exports to CSV, PNG, PDF, SVG, and EPS, and API access for developers integrating barcode generation into their stack. Visit our pricing page for current subscription rates and plan details. We also offer bespoke services for clients with custom barcode workflows.

Is UPCgen really free to use?

Yes! UPCgen offers a genuinely free tier that requires no signup. You can generate one barcode every 24 hours completely anonymously. If you register for a free account, you unlock five codes every 24 hours. For higher volume needs, we offer subscription plans that provide unlimited generation and additional features like bulk exports and API access. There are no hidden fees or surprise charges.

Are the barcodes generated by UPCgen valid for Amazon and Shopify?

Absolutely! Every barcode generated by UPCgen includes a valid check digit and passes GS1 standard validation. Our codes are designed to meet the requirements of Amazon, Shopify, Etsy, eBay, and Walmart supplier portals. However, we are transparent about the fact that for products that need a globally unique, registered UPC number from GS1, you must purchase a real GS1 prefix. Our tool is perfect for internal tracking, FNSKU labels, and scenarios where a generated code is acceptable.

What barcode formats does UPCgen support?

UPCgen supports the most commonly used barcode formats including UPC-A, UPC-E, EAN-13, EAN-8, ISBN, ITF-14, Code 128, FNSKU, and Data Matrix. Each format has its own dedicated generator to ensure correct formatting and compliance with industry standards. Whether you need a standard retail barcode, a warehouse logistics label, or a pharmaceutical Data Matrix code, we have the right tool for you.

Can I generate barcodes in bulk and export them?

Yes! UPCgen supports bulk generation of up to 10,000 barcodes in a single batch. You can export your generated barcodes in multiple professional formats including CSV for spreadsheet management, PNG sheets for easy printing, PDF for label production, SVG for scalable vector graphics, and EPS for high-resolution commercial printing. This makes UPCgen ideal for warehouses, 3PLs, and sellers managing large product catalogs.