📖 Understanding QR Codes

QR Code (Quick Response Code) is a two-dimensional barcode that can store various types of information. Invented in 1994 in Japan, QR codes are now used worldwide for contactless payments, sharing links, product tracking, and more.

QR codes can store URLs, plain text, WiFi credentials, contact information (vCard), phone numbers, email addresses, and more. When scanned with a smartphone camera or QR reader app, the embedded information is automatically processed.

For businesses, QR codes on product packaging, menus, and marketing materials make it easy for customers to access digital content. For personal use, you can share WiFi passwords, contact details, or event invitations without typing.

Our free QR code generator uses Google's Chart API to create high-quality QR codes instantly. No sign-up required, no watermarks, and completely free. You can download the generated QR code as an image for printing or sharing.