A QR code is a square barcode that stores a link or short text. Your phone can read it in a second, with no extra app on most phones.

On iPhone

Open the Camera app, point it at the code and wait. A banner appears at the top. Tap it to open the link.

On Android

• Open the Camera app and point it at the code. A link or button appears, and you tap it.
• If that does not work, look in Quick Settings for Scan QR code, or use Google Lens (in the Google app).
• Some phones have a built-in scanner in the camera’s modes or settings.

If it will not scan

Hold the phone steady, make sure there is enough light, clean the lens and move a little closer or further away. Do not scan it at an angle.

Link WhatsApp Web

In WhatsApp, look for Linked devices, tap Link a device and scan the QR code shown on the computer screen. Only do this for your own computer. See how to protect your WhatsApp account.

How to spot a risky QR code

• A sticker on top of another QR code, for example on a parking meter or a table.
• A code that takes you to a page asking for your password, card number or OTP.
• A web address that looks wrong: check the preview before you tap.
• A code sent by someone you do not know, or in an unexpected message.

Stay safe

1. Read the link preview before you open it.
2. Do not enter passwords or card details on a page you reached from a code you do not trust.
3. For payments, make sure the name shown matches who you mean to pay.
4. If something feels off, close it. More in how to spot phone scams.

Make your own

Many phones and sites can create a QR code for a link. Test it by scanning it with a different phone before you print it.