Author: Sajjad Hassan | Grow SEO Agency

Barcodes are everywhere. From grocery stores and warehouses to eCommerce websites and mobile apps, they power the modern retail and logistics ecosystem. Yet many businesses and developers still don’t fully understand how UPC and EAN barcodes work — or how to use them efficiently. If you are building an application, managing inventory, running an online store, or developing a barcode scanning solution, understanding UPC and EAN systems can save time, reduce errors, and improve data accuracy. In this guide, you’ll learn: What UPC and EAN barcodes are How they work Why they matter for businesses and developers How to look…