What you need
- Network name (SSID), typed exactly as it appears in your phone's Wi-Fi list, including capitals and spaces.
- Security type. Most home and business routers use WPA2 or WPA3; choose “WPA / WPA2 / WPA3” for both.
- Password, again exactly as set on the router.
Special characters such as ;, : and quotes are escaped automatically, which is one of the most common reasons home-made Wi-Fi codes fail.
Does it work on iPhone and Android?
Yes. The code uses the widely supported WIFI: format that the camera apps on current iPhones and Android phones recognise. The phone shows a prompt to join the network; nothing connects without the user tapping it.
Good practice for guest Wi-Fi
- Put the code on a separate guest network, not the one your tills, cameras or office computers use.
- Anyone who can see the code can join. Display it where you'd be comfortable reading the password aloud.
- When you change the password, the old code stops working. Print a new one and replace every copy.
- Add a short line of text such as “Scan to join the guest Wi-Fi” so people know what to expect.
Our full Wi-Fi QR code guide covers hidden networks, enterprise Wi-Fi and printing tips.
