Wi-Fi QR code generator
Let guests join your network by pointing a camera at a code, with no password to read out.
Type a web address, a message, a Wi-Fi name or a phone number, and download a QR code as a picture or as SVG.
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Reading out a long Wi-Fi password is slow, and guests often mistype it. A Wi-Fi QR code does the typing for them. They open the camera, point it at the code and the phone offers to join the network.
Enter the network name and the password, choose the type of security your router uses, and the code appears at once. Print it, frame it and put it in the hall, the guest room or the waiting area of your shop.
The code is built in your browser. For a PNG, JPEG or WebP file only the picture of the grid is drawn on our server, and the password is not in the words we receive.
Finding the right settings
The network name must be written exactly as it appears on the phone, with the same capital letters and spaces. A code with a wrong name makes a phone look for a network that does not exist.
Most routers use WPA or WPA2, which is the first choice in the list. Choose WEP only for an old router that offers nothing better. Choose no password for an open network, such as a guest network that asks for nothing.
Tick the hidden option if your router does not announce the network name. The phone will then ask for the network directly instead of waiting to see it.
Where to put the code
Put it where guests wait or arrive, at eye height and out of direct light. A glossy print under glass can reflect a lamp and hide the squares, so a matt finish is safer.
Add a line of text next to it that says what it is, such as the name of the network. People are wary of codes that come with no explanation.
Test the printed code on two different phones, one with an Android system and one with an iPhone, before you put it up.
Keeping the network safe
Anyone who scans the code can join, and a person who reads the code with a scanner app can see the password it holds. Share it only where you would be happy to say the password aloud.
If you want to cut access later, change the password on the router and make a new code. Old printed codes then stop working, which is also the way to retire a code that was put up in the wrong place.
It also helps not to give visitors the network your own devices use. Most routers can run a separate guest network. Put the code on that one, and keep the password of the main network to yourself.
Frequently asked questions
Will it work on every phone?
Current iPhones and Android phones read Wi-Fi codes from the camera app. Some older phones need a free scanner app that understands the Wi-Fi format.
Can the code show the password to others?
Yes. A scanner app can show the text inside the code, and that text includes the password. Use it on a guest network that has its own password.
What if the password has odd characters?
Characters such as a semicolon, a colon, a comma, a quote mark and a backslash get a special mark in front of them. The tool adds those marks for you, so type the password the way it is on the router.
Do I need to print it large?
A code five centimetres wide scans well from half a metre away. Make it larger if it will be read from across a room.
Can I change colours?
Yes, but keep a dark code on a light background. A code that is hard for a person to see is also hard for a camera.
How long does the code stay valid?
For as long as the network name and password stay the same. When you change them on the router, the code stops working and you need to make a new one.
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