How to create a WiFi QR code
- Enter the network name (SSID) and the password exactly as they are, including capital letters and spaces.
- Choose the security type: WPA / WPA2 / WPA3 for almost every router, including WPA2/WPA3 mixed mode; WPA3 only (SAE) if your router admits WPA3 devices only; None for an open network. Tick Hidden network if the name is not broadcast.
- Download or print the code and put it where guests can see it: on the fridge, in a guest room, at the reception or on the table.
What is inside a WiFi QR code
The code contains a short text such as WIFI:T:WPA;S:Home Network;P:my password;;. Phones recognize this format and offer to join the network.
| Field | Meaning | Example |
|---|---|---|
T: | Security type | WPA, SAE (WPA3 only), WEP or nopass |
S: | Network name (SSID) | Home Network |
P: | Password | my password |
H: | Hidden network | true |
Special characters \ ; , : " in the name or password are escaped with a backslash automatically. The camera app of the iPhone (iOS 11 and later) reads these codes, and so do Android phones – through the camera, Google Lens, or the QR code button in the Wi-Fi settings (Android 10 and later).
Tips for sharing Wi-Fi safely
- Use a guest network for visitors if your router offers one: guests get internet access, but not your computers, printers or smart home devices.
- Anyone who scans the code can read the password, just like a password written on a card – show it only where you would share the password anyway.
- Changed the password? The old code stops working, because the password is stored in it. Create and print a new code.
- Print it large enough – about 4 × 4 cm (1.5 in) is easy to scan from arm's length.
Frequently asked questions
How do guests connect with the code?
On an iPhone, they open the Camera app, point it at the code and tap the banner to join the network. On Android, they use the Camera app, Google Lens or the QR code button in the Wi-Fi settings.
Is it safe to put my Wi-Fi password in a QR code?
The password is stored in the code as plain text, so treat the code like the password itself. The code is created in your browser – the password is never sent to us or stored anywhere.
Why can a phone not connect after scanning?
Check that the network name and the password match exactly, including capital letters and spaces, and that the security type is right. For a network without a password, choose None.
Does the WiFi QR code expire?
No. It works as long as the network name and password stay the same.