Guest WiFi without spelling out the password
A WiFi QR code joins a network in one tap. Guests point their camera at it and their phone connects. Nobody reads out “capital H, the number 4” ever again.
Works with the phones people already have
The built-in camera reads WiFi codes on iPhone (iOS 11 and later) and on most Android phones from Android 10. On older Android phones, Google Lens or the camera’s scan mode does the same job. No app is needed.
Where to put it
At home, tape it inside a kitchen cupboard or frame it in the guest room. In a café, print it on table tents and by the register. In a rental or hotel room, add it to the welcome card next to the checkout time. In an office, keep it at reception for visitors, away from windows that face the street.
Keep your main network private
Anyone who sees the code can join, and they can pass it on. Most routers let you create a separate guest network. Put that one on the code, so visitors never reach your printers, cameras or shared files.
If you change the password
The password is stored inside the code, so a new password needs a new code. It takes a minute, and the old code simply stops connecting. That’s also the upside: nobody can redirect your code, because it doesn’t point anywhere except your network.
Your password stays on your device
Many WiFi code sites send your network name and password to their servers. This one doesn’t. The code is made in your browser and nothing is uploaded.