Wi-Fi QR code generator
Type your network name and password. Guests scan the code with the phone camera and join the network without typing the password.
Free, with no account, no watermark, and no scan limit. The code is static: what it holds is in the pattern, so it never expires.
What happens when someone scans it?
The camera app on iPhone and Android reads the code and shows a prompt to join the network. One tap connects.
What is in the code?
WIFI:T:WPA;S:<network name>;P:<password>;H:false;;T is the security type (WPA, WEP, or nopass for an open network), S the network name, P the password, and H true for a hidden network. A ; , : or \ in the name or password is escaped with \.
How big should I print it?
Measured with the encoder this page uses, for one example: a WPA network with a 16-character name and a 15-character password (57 characters). Each module needs at least 0.4 mm, and no code should be under 2 cm. A logo raises error correction to level H, which adds modules.
| Design | Modules | Minimum width | Scans from up to |
|---|---|---|---|
| No logo (level M) | 33 × 33 | 2 cm | 20 cm |
| With a logo (level H) | 41 × 41 | 2 cm | 20 cm |
For your own content and scan distance:
Tips
Use a guest network
The code gives the password to anyone who can see it. Put guests on their own network, away from your printers and computers.
Change the password, change the code
The password is in the code. When you change it on the router, make and print a new code.
Choose WPA for WPA2 and WPA3
WPA covers WPA2 and WPA2/WPA3 mixed mode. Some phones do not join a WPA3-only network from a code: use mixed mode for guests.
Print the name and password too
A laptop has no camera app that joins networks. Write the network name and password under the code for it.
Full guide: How to make a Wi-Fi QR code: setup, testing, and placement
Questions
- Do Wi-Fi QR codes work on iPhone and Android?
- Yes. The built-in camera apps on current iPhones and Android phones read Wi-Fi QR codes and offer to join the network. No app is needed.
- Is a Wi-Fi QR code safe?
- The password is in the code in plain text, so anyone who scans it, or photographs it, has the password. Use a guest network and do not put the code where strangers should not join.
- Does the code still work if I change the Wi-Fi password?
- No. The code holds the old password. Make a new code after you change the password or the network name.
- Does a Wi-Fi QR code connect to the internet?
- No. It holds the network name and password only. Pretty QR is not involved when someone scans it, and it works without an internet connection.