How to Create a Wi-Fi QR Code for Guests

Why use a Wi-Fi QR code

Typing a long Wi-Fi password on a phone keyboard is error-prone, especially for guests and in cafés or offices. A Wi-Fi QR code encodes the network name and password so a single scan connects the device.

Generate one free with the Wi-Fi QR code generator.

How it works

The QR code contains a standard string:

WIFI:T:WPA;S:MyNetwork;P:MyPassword;H:false;;

• T — security type (WPA/WEP/nopass)
• S — network name (SSID)
• P — password
• H — hidden network (true/false)

iOS and Android camera apps recognise this format and offer to join.

Step by step

1. Choose the network — ideally a guest network, not your main one.
2. Enter the SSID exactly, including case.
3. Enter the password exactly — one wrong character and it fails.
4. Set the security type (usually WPA/WPA2).
5. Generate and test it on a real phone.
6. Print and place it where guests can scan comfortably.

Security considerations

• The code contains your password in plain form. Anyone who scans it can read it.
• Use a guest network with a separate password and, if possible, client isolation.
• Rotate the password periodically and reprint the code.
• Never post a Wi-Fi QR code for a network holding sensitive systems.

Placement and size

• Put it at comfortable eye level where people wait.
• Size it for the distance: a scan from 1 m needs a code around 10 cm wide.
• High contrast and a clean quiet zone around the code.
• Laminate it so wear does not break the pattern.

Test before you print a batch

Scan with several phones, log in, and only then print. A failed Wi-Fi code is worse than none — guests will just give up.

Make one now

Use the free Wi-Fi QR code generator, or the general QR code generator for everything else.