QR Code Generator (2D Matrix)
High-Capacity Two-Dimensional Optical Matrix (ISO/IEC 18004) (Standard: ISO/IEC 18004:2024)
What is QR Code Generator (2D Matrix)?
A QR Code (Quick Response Code) is a two-dimensional matrix symbology capable of storing up to 7,089 numeric or 4,296 alphanumeric characters. It features Reed-Solomon error correction across four selectable tiers (L, M, Q, H), allowing codes to be scanned accurately even when partially damaged, stained, or overlaid with a brand logo.
Technical Specifications
| Classification | 2D Matrix Symbology |
|---|---|
| Capacité | Numeric: 7,089, Alphanumeric: 4,296, Binary: 2,953 bytes |
| Contrôle Checksum | Reed-Solomon Error Correction (7% L, 15% M, 25% Q, 30% H) |
| Zones de Silence | Minimum 4 modules (quiet zone) around the perimeter |
| Applications | Mobile URL scanning, electronic payments, digital business cards, interactive labels |
Frequently Asked Questions
- Which QR error correction level is best for embedding a center logo?
- Level H (High, 30% error recovery) is recommended when overlaying logos or graphics in the center of the QR matrix.