QR Code Architecture & Versions
A Quick Response (QR) code is a matrix two-dimensional barcode consisting of black modules arranged in a square grid on a white background. The data capacity of a QR code depends on its Version (ranging from 1 to 40, which specifies the grid size from 21×21 to 177×177 modules) and its selected Error Correction Level.
To ensure local scan recovery if a code is smudged, damaged, or partially covered, we implement the **Reed-Solomon Error Correction Code** standard client-side. The mathematical parameters are divided as:
Frequently Asked Questions
As you encode more text (like long URLs or paragraphs), the QR version must increase to fit the higher data bit stream. This leads to a denser grid of smaller modules. Keep your URLs short (or use short links) to generate simple, fast-scanning QR grids.
Yes. The client-side matrix algorithm generates globally standard ISO/IEC 18004 compliant QR grids that are recognized instantly by standard iOS Camera and Android Lens scanners.