QR (Quick Response) codes are two-dimensional barcodes that can store various types of information. They were invented in 1994 by Denso Wave, a Japanese automotive company, to track vehicles during the manufacturing process. The name QR comes from the codes ability to be read quickly by a scanning device.
Unlike traditional barcodes, QR codes can store much more information and can be read from any angle, making them more versatile and user-friendly.
QR codes work by encoding information in a grid of black and white squares. The pattern of these squares represents binary data that can be interpreted by a QR code reader. The code contains:
These QR codes contain website URLs. When scanned, they open the specified webpage in the users browser. Perfect for sharing websites, landing pages, or online resources.
vCard QR codes contain contact information in a standardized format. When scanned, they allow users to quickly save contact details to their phones address book. Ideal for business cards and networking.
These QR codes contain Wi-Fi network credentials. When scanned, they automatically connect the users device to the specified Wi-Fi network. Great for home, office, or public networks.
Text QR codes contain plain text information. When scanned, they display the text directly on the users device. Useful for sharing short messages, instructions, or any text-based information.