How to share your Wi-Fi with a QR code

By INTRVL · Updated 21 Oct 2026 · 3 min read

Put your network name, password and security type into a Wi-Fi QR code. Guests point their phone camera at it and tap to join, with nothing to type. iPhone's Camera reads QR codes, and so do most Android phones (Camera or Google Lens).

Make one in a minute

1. Open the QR maker and choose Wi-Fi.
2. Type the network name exactly as phones show it. Capitals, spaces and symbols all count: Kopi House Guest is not the same as kopi house guest.
3. Type the password.
4. Pick the security. For almost every home, office and shop router that's WPA / WPA2. Choose "None" only if the network has no password.
5. Wait for "Scans fine", then save it as an image or print it.
6. Test it with a real phone before it goes on the wall: the phone should offer to join your network.

Already on the network with Android?

You may not need to make one at all. On Android, open Settings → Network & internet → Internet, tap your Wi-Fi network, then Share. The phone shows a QR code your friend can scan with their device. Menu names vary a little between phone makers.

What's inside the code

A Wi-Fi QR code is a short line of text in a format phones understand, first written up by the open-source ZXing barcode project:

WIFI:T:WPA;S:Kopi House Guest;P:your-password;;

• T is the security type (WPA, WEP or nopass), S the network name and P the password. H:true marks a hidden network.
• If the name or password contains \ ; , : or ", each needs a backslash in front so phones don't misread it. The QR maker adds those for you.

Anyone who scans it can read the password. It's stored as plain text, so treat the printed code like the password itself. For codes in public places, use a guest network and change its password now and then.

WPA3 networks

The ZXing format has no separate value for WPA3. T:WPA is the widely supported choice and is what most generators use, including ours. If your router is set to WPA3 only, test the code on a couple of different phones before you print it.

If it doesn't work

• The phone sees the code but won't join: a typo in the name or password, or the wrong security type. Check the name letter by letter.
• Nothing happens when you point the camera: print it bigger, keep it dark on a light background, and leave a plain margin around it.
• You changed the password: the old code stops working. Make a new one.
• It's a hidden network: tick "Hidden network" so phones know to look for it.