How to make a Wi-Fi QR code
- Type the network name (SSID) exactly as it appears in Wi-Fi settings, including capitals and spaces.
- Type the password, and choose the security: WPA / WPA2 / WPA3 for almost every home and office router, WEP for very old ones, None for an open network.
- Tick Hidden network only if your router doesn't broadcast its name.
- Download it as PNG or SVG and print it, or show it on a screen. Test it with a phone first.
Good uses
- A card on the fridge or the guest room for visitors
- Holiday lets, Airbnbs and guest houses
- Café, restaurant and shop tables
- Meeting rooms and reception desks
- Setting up your own new phones and tablets quickly
What goes in the code
WIFI:T:WPA;S:Cafe Guest;P:espresso-2026;;This is the standard Wi-Fi format that iPhone and Android cameras read: T is the security type, S the network name, P the password, and H:true is added for hidden networks. Special characters (\ ; , : and ") in the name or password are escaped automatically, so they still work.
Good to know
- If you change the Wi-Fi password, the old code stops working: make a new one.
- The password is readable by anyone who scans the code, so put the code where only people you'd give the password to can see it. A separate guest network is a good idea.
- iPhones (iOS 11 and later) join from the Camera app, and Android phones (Android 10 and later) from the camera or the Wi-Fi settings screen. Older phones may need a scanner app.
Static codes: no expiry, no tracking
Codes made here are static: the network name and password are written into the code itself, not kept on a server. So the code never expires, works without an account or subscription, and nobody, Yuzool included, sees who scans it or when.
The trade-off is that a static code can't be edited after it's printed: make a new one instead. Dynamic codes from other services point to a short link they control, so they can count scans and change the destination, but they stop working if the service or your subscription ends.
Printing, size and error correction
- Size: at least 2 cm (about 0.8 in) square for anything held in the hand. For posters and windows, make it about a tenth of the scanning distance: 20 cm across to scan from 2 m away.
- Contrast and border: a dark code on a light background, with the plain border (the quiet zone) kept clear of text and pictures. The app warns you about low contrast and light-on-dark codes.
- Error correction (in Style and size) lets a code still scan when part of it is dirty, scratched or covered: Low recovers about 7%, Medium 15% (the default), Quartile 25% and High 30%. Higher levels make the code denser, so keep Low or Medium for small prints with a lot in them, and choose Quartile or High for stickers, outdoor signs and things that get handled.
- File: SVG stays sharp at any size, so use it for print. PNG (up to 2048 pixels) suits screens, documents and slides.
- Test with two different phones before you print a batch.
Questions
Is my Wi-Fi password sent anywhere?
No. The code is generated in your browser and nothing you type leaves this device. The password ends up only in the code you download.
Does a Wi-Fi QR code work on iPhone?
Yes. Open the Camera app, point it at the code and tap the Join network prompt. Android phones do the same from the camera or the Wi-Fi settings screen.
What if I change my Wi-Fi password?
Make a new code. A static code holds the old password, so it stops connecting once the password changes.