A QR code is a two-dimensional barcode that a phone camera can read in seconds. It turns printed or displayed information into a direct digital action, such as opening a website, joining Wi-Fi, saving a contact or starting a payment.
How does a QR code work?
The black and light modules form a machine-readable pattern. The three larger squares help a scanner recognise the code’s orientation, while error correction allows many codes to remain readable even when a small area is damaged or covered by a logo.
When a camera recognises the pattern, it decodes the stored information and asks the user to open or complete the relevant action.
What can a QR code contain?
- A website or landing-page URL.
- Contact information or a digital business card.
- Wi-Fi network details.
- Email, SMS, phone and messaging actions.
- Menus, catalogues, bookings, reviews and lead forms.
- Payment or donation details.
How do you scan one?
- Open the camera on your phone.
- Point it steadily at the complete QR code.
- Tap the notification that appears.
- Check the destination before continuing.
Static and dynamic codes
A static code permanently stores the destination. A dynamic code can be updated after printing and can report useful scan activity. Businesses generally choose dynamic codes for campaigns, packaging, signage and any experience likely to change.
Why businesses use QR codes
QR codes remove typing and shorten the journey between interest and action. They can make printed material measurable, reduce reprinting, support contactless service and help customers reach the right information immediately.
Safety and trust
Place a clear description beside the code and use a recognisable branded destination. Customers should know what they will receive before scanning. Users should also check unfamiliar links and avoid entering sensitive information on an unexpected page.
Create your first QR experience
Choose from links, menus, forms, reviews, contact cards and many more useful QR types.