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Stop dictating your 20-character WiFi password letter by letter. One scan connects guests instantly. Here is how to make a WiFi QR code, and how to avoid the common failures that stop it working.
The problem with sharing WiFi passwords
Every host knows the ritual: a guest asks for the WiFi, you recite a password full of capitals and symbols, they mistype it twice, and you both stare at a "could not join" message. Cafés tape passwords to the counter where everyone photographs them; Airbnb hosts print them in the welcome book, where they go stale.
A WiFi QR code ends the ritual. The network name, security type, and password are encoded in the pattern — the guest points their camera at it and the phone offers to join. No typing, no misheard characters, and no password lingering in the group chat.
Make one in under a minute
Open the QR Code Generator and switch to the WiFi tab. Then:
- Type your network name (SSID) exactly as it appears — capitals, spaces, and all.
- Choose the security type (WPA/WPA2 for most home routers, or none for open networks).
- Enter the password.
The live preview shows the code as you type. Download the PNG when it looks right, print it, and put it where guests actually look: the fridge, the café counter, or the Airbnb welcome binder. One code, permanent fix.
The gotchas that break WiFi QR codes
Most failed WiFi codes fail for boring reasons:
- The SSID is case-sensitive. "HomeWiFi" and "homewifi" are different networks. Copy the exact spelling from your router's admin panel or sticker.
- The security type must match the router's setting. Pick WPA/WPA2 unless you know yours is different.
- Special characters are fine, but copy the password from the router sticker rather than retyping it from memory.
- Hidden networks are unreliable. Some phones will not auto-join a hidden SSID from a QR scan, or they join but drop. If your network is hidden, consider unhiding it or keeping a printed password as backup.
- Separate 2.4 GHz and 5 GHz names need separate codes. Generate the code for the network you want guests on.
- Always test-scan with a second phone before printing.
Do guests need an app to scan it?
Almost certainly not. iPhones have scanned QR codes straight from the Camera app since iOS 11, and Android phones since Android 10 — that covers the overwhelming majority of phones in pockets today. The guest opens the camera, points it at the code, and taps the join prompt.
For a rare older phone, any free QR scanner app from the app store works. If you run a business with foot traffic, add one line under the code: "Point your camera at this code to join."
Security note: put guests on a guest network
Be clear-eyed about one thing: a WiFi password inside a QR code is plaintext to anyone who photographs the printout. For home use that is usually fine — it is the same exposure as telling someone the password. But the code is only as private as the paper it is printed on.
The clean solution is a guest network, which nearly all modern routers support. Guests get internet without seeing your shared folders, printers, or smart-home devices, and you can change the guest password — and reprint one code — without touching your own devices. Treat the printed QR like a house key: convenient, but do not leave it where strangers wander.
Make your WiFi QR code free
Enter your network name and password, download the code, and never dictate a password again — free, no signup. Try the QR Code Generator now.
Originally published on the All Done blog.
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