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Definition

What is QR code?

A plain-English definition, and the tools that work with it.

Definition

A QR code is a square barcode that a phone camera can scan to instantly open a link, connect to WiFi, save a contact or show text. It bridges the physical and digital worlds: print one on a poster, menu or card and people reach your content in a tap.

  • A standard (static) QR code encodes the data directly, so it never expires and works as long as the destination exists.
  • Keep good contrast and a clear margin, and don't over-decorate, phones need to read the pattern reliably.
  • You can read a QR code from a saved image or screenshot too, not just with a live camera.

Frequently asked questions

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