UPCgen

UPCgen is the internet's most straightforward, no-BS barcode generator. 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. Forget the bloated software, the confusing checkbox-soup of options, or the shady sites that pretend to issue "free" UPCs that collide with real registered products. We built one clean, honest page that generates a valid code, downloads cleanly, and tells you straight up when you need a real GS1 number. Our mission is to be the most trusted free barcode generator for Amazon FBA, Shopify, KDP, and over 50 other platforms. Every code we produce has a valid check digit and passes GS1 standard validation, ensuring it meets the strict requirements of Amazon, Shopify, Etsy, eBay, and Walmart supplier portals. Whether you are a solo seller printing FNSKU labels or a massive warehouse needing ITF-14 codes for outer cases, UPCgen handles it all. We offer anonymous generation without signing up for a free code every 24 hours, or you can register for free to get five codes daily. For power users, our subscription plans unlock bulk generation of up to 10,000 codes at once, with exports to CSV, PNG sheets, PDF, SVG, or EPS for professional print. We also provide a developer-friendly API for those integrating barcode generation into their stack. UPCgen is built for the modern hustler who needs speed, accuracy, and zero nonsense.

Valid and Platform-Approved Codes

Every single barcode generated on UPCgen is mathematically valid with a correct check digit, passing GS1 standard validation. This is not some random image generator; our codes are engineered to be accepted by major platforms like Amazon, Shopify, Etsy, eBay, and Walmart. You can slap them on your products with confidence, knowing they won't get rejected during listing or fulfillment. No more wasting time on codes that fail at the last minute.

Bulk Generation and Professional Export

Need one code for a test run or ten thousand for a massive inventory launch? UPCgen has you covered. Our bulk mode lets you generate up to 10,000 codes in a single batch, saving you hours of manual work. Once generated, you can export your codes as CSV files for inventory management, PNG sheets for easy printing, or high-resolution PDF, SVG, and EPS files for professional label production. Your workflow stays smooth and fast.

Anonymous and Free Tier

We believe in transparency and accessibility. You can generate a valid barcode completely anonymously without creating an account, getting one free code every 24 hours. This is perfect for testing a new product idea or verifying a code format. If you need more, registration is free and unlocks five codes daily. No credit card required, no hidden fees, no data mining. Just pure, honest barcode generation.

Developer-Friendly API

For teams and developers who need to integrate barcode generation directly into their software stack, UPCgen offers a powerful API (available with the Business plan). This allows you to automate the creation of UPC, EAN, ISBN, and other barcodes right from your own apps, websites, or warehouse management systems. Say goodbye to manual copy-pasting and hello to seamless, programmatic barcode generation that scales with your business.

Amazon FBA and FNSKU Labeling

Amazon FBA sellers are the backbone of UPCgen. You need FNSKU labels for your inventory, and our generator creates them instantly and accurately. No more wrestling with complicated software or worrying about barcode rejection at the warehouse. Just generate, print, and ship. Our codes are platform-approved, so your products get received and stocked without a hitch, keeping your business moving at full speed.

Shopify and Etsy GTIN Requirements

Shopify and Etsy both require GTINs (Global Trade Item Numbers) for many product listings. UPCgen makes it dead simple to generate valid UPCs and EANs that meet these platform standards. Whether you are launching a new handmade item or scaling a dropshipping empire, you can generate the exact code you need in seconds. Stop losing sales because your listing lacks a proper barcode.

Warehouse and 3PL Outer Case Labeling

Warehouses and third-party logistics providers (3PLs) need robust ITF-14 barcodes for labeling outer cases and pallets. UPCgen generates these codes with precision, ensuring they scan correctly in high-speed logistics environments. Our bulk export options let you produce hundreds of labels at once, keeping your operations efficient and your inventory tracking flawless. No more mis-scans or lost shipments.

Self-Publishing ISBN Barcodes for KDP

Self-publishers on Amazon KDP and other platforms need ISBN barcodes for their book covers. UPCgen provides a dedicated ISBN generator that creates a valid, print-ready barcode in seconds. You can download it as a high-resolution PNG or vector EPS file, ready to drop into your cover design software. Skip the expensive design services and generate your own professional barcode for free.

Are the barcodes generated by UPCgen valid and recognized by retailers?

Yes, absolutely. Every barcode generated on UPCgen has a mathematically correct check digit and passes GS1 standard validation. Our codes are designed to meet the requirements of major platforms like Amazon, Shopify, Etsy, eBay, and Walmart. However, it is important to understand that a valid barcode number is different from a registered GS1 company prefix. If you are selling a product that requires a unique, globally registered UPC, you must purchase a legitimate GS1 prefix. UPCgen generates codes that are structurally valid for internal use, testing, or for use with a valid GS1 prefix you already own.

Can I use UPCgen for free, and what are the limits?

Yes, you can use UPCgen for free. You can generate one barcode every 24 hours completely anonymously without creating an account. If you register for a free account, you unlock the ability to generate up to five codes every 24 hours. For users who need more codes, such as for a large product launch or bulk inventory management, we offer subscription plans that allow for higher daily limits and bulk generation of up to 10,000 codes at once.

What barcode types can I generate with UPCgen?

UPCgen supports a wide range of the most common barcode symbologies. You can generate UPC-A, UPC-E, EAN-13, EAN-8, ISBN, ITF-14, Code 128, FNSKU, and Data Matrix codes. We also offer a dedicated QR code generator for links, WiFi, vCard, and more. This makes us a one-stop shop for all your barcode and QR code needs, whether you are a seller, publisher, warehouse operator, or developer.

How do I export the barcodes I generate?

UPCgen offers multiple export options to fit your workflow. For a single barcode, you can download it as a high-resolution PNG, SVG, or EPS file. For bulk generation, you can export your codes as a CSV file for inventory management, a PNG sheet for easy printing, or as a multi-page PDF. These formats ensure your barcodes are print-ready for labels, packaging, or digital listings, saving you time and hassle.