You receive a flyer with a small square pattern printed on it. The pattern looks like a jumbled maze. Tiny black and white squares arranged in a grid. You pull out your phone, open the camera app, and point it at the pattern. Within seconds, your phone opens a website. That square pattern is a QR code. A QR code generator created it. QR codes are everywhere now: product packaging, restaurant menus, event tickets, business cards, advertisements. They are a simple way to encode information into a format that phones can instantly read. But how do these codes work? What information can they store? How do generators create them? And when should you use QR codes instead of other methods? In this comprehensive guide, we will explore the mechanics of QR codes, how generators work, and how to use them effectively. 1. What is a QR Code? A QR code is a two-dimensional barcode that stores information in a pattern of black and white squares. The Basic Concept Input: Information (text, URL, contact ...