Technology
June 22, 2026
QR Codes: What They Are and How They Work
Everything you need to know about QR codes - from how they work to how to create your own safely.
What is a QR Code?
QR (Quick Response) codes are two-dimensional barcodes that can store a large amount of data. They were first created in Japan in 1994 for the automotive industry but have since become widely used for all kinds of purposes.
How QR Codes Work
QR codes consist of black modules (square dots) arranged on a white background. The pattern of these modules contains information that can be read by a QR code scanner or smartphone camera.
Common Uses of QR Codes
- Website links
- Contact information
- Product information
- Payment information
- WiFi network login details
Advantages
- • Enhanced security through advanced cryptographic implementations
- • Improved performance and optimized resource utilization
- • Scalable architecture suitable for enterprise deployments
- • Comprehensive documentation and community support
Considerations
- • Initial learning curve for implementation
- • Requires regular maintenance and updates
- • Resource-intensive operations may require optimization
- • Compatibility considerations for legacy systems