QR Codes
⭐ MasteredA QR code is a square pattern that stores information such as a web address. A phone camera can scan it to open a link.
QR stands for Quick Response.
All about QR Codes
A QR code is a square pattern of black and white blocks that stores information, such as a web address, text or contact details. QR stands for "quick response" because the code can be read quickly by a camera.
To use a QR code, point your phone camera at it. The phone reads the pattern and offers to open the link or show the information. QR codes are used on menus, tickets, adverts and product packaging.
🎮 Try it yourself!
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Real-life uses of QR Codes
- Opening a restaurant menu without touching a shared card
- Checking in to an event with a ticket
- Scanning a product to find out more about it
Frequently asked questions about QR Codes
Are QR codes safe to scan?
Usually, but a code can link to a harmful website. Check the link before you open it, especially if it came from a stranger.
Who invented the QR code?
It was invented in 1994 by Denso Wave, a Japanese company, to track vehicle parts.
Can a QR code store a lot of information?
Yes, a QR code can hold thousands of characters, although very dense codes can be harder to scan.