How to create a WiFi QR code step by step
Type your network name (SSID) exactly as it appears on your phone, including capital letters and spaces. Enter the password, choose the security type and tick Hidden network only if your router does not broadcast its name. Most modern routers use WPA, WPA2 or WPA3, which all use the WPA setting; WEP is only for very old equipment, and No password is for open networks.
The finished code holds the network name, security type and password in the standard WIFI: format that phone cameras understand. Use the scan test to check it, then try it with a real phone that has forgotten the network before printing a stack of cards.
Where to put a WiFi QR code
In a café, place the code on the counter, the menu or a small card on each table so customers stop asking staff for the password. In a hotel or holiday rental, put it inside the welcome folder, on the back of the room door or in a frame by the TV. In offices, a code in each meeting room saves visitors from reading out long passwords.
Print size matters less here than for posters because guests scan up close, but give the code at least 3 cm square and keep a white margin around it. Download the PDF or SVG for crisp printing and test the printed card with both an iPhone and an Android phone.
A frame with text such as Scan to join WiFi makes the purpose obvious, and adding your logo helps guests trust that the code is genuinely yours rather than a stranger’s sticker.
Security and password changes
Anyone who can photograph the code can join the network, so treat it like the password itself. For guests, create a separate guest network on your router and share that one, keeping your main network private.
The password is written into the code, so if you change it, the old code stops connecting and you need to generate and print a new one. That is also an easy way to cut off access: change the guest password and reprint. The code itself never expires while the password stays the same.