QR Code Generator - Create free QR codes online.
Easily generate QR codes for websites, contact information, Wi-Fi access and other applications with our free online QR Code Generator. Perfect for personal use and business purposes.
Easily generate QR codes for websites, contact information, Wi-Fi access and other applications with our free online QR Code Generator. Perfect for personal use and business purposes.
A QR (Quick Response) code is a type of two-dimensional matrix barcode invented in 1994 by the Japanese company Denso Wave. [15] It is a machine-readable optical label that contains information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier or tracker pointing to a website or application. [16]
The error correction mechanism (Error Correction) allows damaged QR codes to still be read correctly. There are four levels: Low (L) can recover ~7% of the data, Medium (M) 15%, Quartile (Q) 25%, and High (H) can reconstruct up to 30% of the corrupted data. [17]