To show your wifi password as a QR code on the TV, put the network's name and password on a free board: it draws the code beside them, large, and a guest joins by pointing their phone's camera at the screen. There is no password to type across the room and nothing to install.
It is the one question every guest asks, and the one a screen answers better than a person. The code takes about thirty seconds to set up, and from then on nobody has to read a password off the back of a router again.
How a phone joins from the code
The code holds the network's name, its kind of security and its password, written the way phones expect a wifi code to be. On an iPhone, open the Camera and point it at the TV: Apple's own iPhone guide describes a network's code as something friends scan to join. On Android, Google's help describes joining a network the same way, and where a phone's camera app doesn't read codes, the QR code scanner in Quick Settings does. We checked both makers' pages on October 17, 2026.
The code grows with its tile, so a bigger tile is easier to scan from the sofa, and on a tile with room for them the name and password are printed beside it in large type, for the guest whose phone won't play along.
A network with no password
Set security to "Open, no password" and the code joins without one. The board says no password is needed, so nobody goes looking for it.
The code without the password printed
For a room people walk through, switch off "Show the password" and the board shows the network's name and the code, and no password to read off the wall. The code still carries the password, so anyone who scans it can join: it just isn't printed for a passer-by to copy.
Off the screen when the event ends
The wifi starts with "Hide after the event" switched on. Give the board's event a start and an end, and the network comes off the screen by itself when it is over, without you remembering to do it at midnight. Set the hours the board shows as well, and the screen is dark overnight.
A viewer password, for a screen anyone can see
The board is a page at a long, unguessable address that is never indexed and never linked from anywhere public. For a screen in a shared building, or one visible from the street, you can put a viewer password on the board as well. A TV you paired yourself with a short code skips it, so the screen is never stuck behind a login nobody can type into.
Changing the password between guests
Type the new password into the board from your phone. The code is made from it, so the TV shows a code for the new password within a minute, and the old one stops getting anyone on once the network itself has changed. If you think the board's own address has got out, its settings make it a new one, and the old address stops working.
Is it safe?
As safe as a card on the fridge with the password on it, which is what it replaces: anyone who can see the screen can join. So put your guest network on it, not the one your own computers use. The password is stored encrypted, and you choose whether it is printed, when it comes off the screen and who can open the board at all.
A board worth copying
If all the TV needs to say is the wifi, pick "Just the wifi" when you make the board. The code takes as much of the screen as it can, with the time beside it. That is two tiles. On a screen turned on its side the code fills the top and the time sits under it.
Every other starting layout has the wifi on it too, most of them in the top row: the layouts guide has one for a party, a stay and a place of work, and the setup guide walks through getting the board onto the TV.