Barcode Lookup: How to Identify Any Barcode
If you have a barcode and want to know what product it belongs to, you need a barcode lookup tool. Here is a complete guide on how barcode databases work, what you can (and cannot) look up, and the best tools to use.
What is Barcode Lookup?
A barcode lookup (or barcode checker) is the process of scanning or typing the numbers beneath a barcode into a database to retrieve the associated product information.
It is a common misconception that barcodes inherently contain product names, prices, or descriptions. They do not. A standard retail barcode is simply a unique string of numbers (like a license plate). To know what the "license plate" belongs to, you must look it up in a database.
How Barcode Databases Work
When a company creates a product intended for retail sale, they purchase a block of unique barcode numbers from GS1 (the global barcode standards organization). GS1 maintains the central registry of all authentic retail barcodes in the world.
When you use a barcode lookup tool, the software is cross-referencing your barcode number against GS1's registry or a crowdsourced product database to find:
- The Product Name
- The Manufacturer or Brand Owner
- Product Category
- Occasionally, pricing data (if the database aggregates retailer information)
Types of Barcodes You Can Look Up
Not all barcodes can be looked up globally. You can only perform a global lookup on standardized retail barcodes. Internal logistics barcodes will not return results on public databases.
Can Be Looked Up
- ✅ UPC-A & UPC-E: North American retail.
- ✅ EAN-13 & EAN-8: Global retail products.
- ✅ ISBN: Books and publications.
- ✅ GTIN-14: Outer carton trade items.
Cannot Be Looked Up Globally
- ❌ Code 128: Used for internal inventory.
- ❌ Code 39: Used for asset tracking.
- ❌ FNSKU: Amazon's proprietary internal barcodes.
- ❌ Custom QR Codes: Unless they encode a specific web URL.
Free Barcode Checker Tools
At BarcodX, we specialize in generating barcodes. Because we don't maintain a product database, we do not currently offer a barcode lookup service. However, if you need to check a product, we recommend the following external services:
- GS1 GEPIR / Verified by GS1: The official, most authoritative database. It will tell you the exact company that legally registered the barcode.
- BarcodeLookup.com: A massive crowdsourced database that often provides product images, descriptions, and store links.
- UPCitemdb: Another free tool for checking UPC and EAN codes against millions of products.
Note: Always verify high-stakes authenticity (like Amazon seller requirements) directly through the GS1 database.