WiFi QR code
Let guests join your WiFi without asking for the password.
Type your network name and password, print the code, and any modern phone connects from the camera app. Nothing you enter here leaves your browser.
The password is encoded into the image itself. Print it only where you’re happy for guests to scan it.
Start from a template
Design & quality
Error correction raised to H so the logo doesn’t break the code.
This logo covers a lot of the code. Switch error correction to H and test the printed result before you order a run.
Your code appears here as you type
Generated in your browser. Nothing you type is uploaded.
Getting it right
Use a guest network, not your main one
A WiFi QR code is readable by anyone who can see it. That is the point — but it means the code should only ever carry a guest network password. Keep your EFTPOS terminal, office machines and NAS on a separate SSID that never gets printed.
How big to print it
Use the 10:1 rule: minimum width equals scanning distance divided by ten.
| Where it goes | Read from | Print at least |
|---|---|---|
| Table tent card | 30 cm | 3 cm wide |
| Counter sign | 60 cm | 6 cm wide |
| Wall poster | 2 m | 20 cm wide |
| A-frame outside | 3 m | 30 cm wide |
Settings that survive real venues
- Download the SVG, not the PNG, for anything going to a printer. Vector stays sharp at any size.
- Set error correction to H for laminated cards and outdoor signs — it still scans with up to 30% of the code scuffed or covered.
- Keep the quiet zone at 4 modules or more. Cropping the white border is the single most common reason a printed code stops working.
- Keep strong contrast. Dark code on a light background scans; light-on-dark fails on many older Android cameras.
Test before you print a hundred of them
Print one, then scan it with an iPhone and an Android phone, in the actual lighting of the room, from the distance a customer will really stand at. Two minutes here saves a reprint.
Straight answers
WiFi QR code questions
Is it safe to put my WiFi password in a QR code?
The password is encoded into the pattern itself, so anyone who can photograph the code can read it. That is exactly what makes it convenient for a guest network — and why you should never use one for the network your point-of-sale or office computers sit on. Run a separate guest SSID and print the code for that.
Does this work on both iPhone and Android?
Yes. iOS 11 and later, and Android 10 and later, both join a network straight from the camera app with no extra software. Older Android phones may need a QR reader app, and some will show the password rather than connecting automatically.
Which security type should I pick?
Almost every modern Australian router uses WPA — that option covers WPA, WPA2 and WPA3. Choose WEP only for very old hardware, and Open network when there is no password at all.
My network name has a semicolon or comma in it. Will that break?
No. Characters with special meaning in the WiFi format — backslash, semicolon, comma, colon and double quote — are escaped automatically before the code is built.
Can I change the WiFi password later and keep the same code?
No. The password is baked into the pattern, so changing it means printing a new code. If your venue rotates its guest password, print the code on something cheap to replace, or point a code at a landing page instead.