What happens when someone scans
A Wi-Fi QR code stores your network name and password in the pattern itself. When a guest points the camera on a current iPhone or Android phone at the code, the phone offers to join the network. They tap the prompt and connect, and you do not have to read out the password.
Nothing sits between the scan and the network, so the code keeps working even if 77-3.com disappears. The trade-off is that anyone who scans the code can read the password, so print it only where guests should see it.
How to make a Wi-Fi QR code here
- Use the Wi-Fi form on this page. The code is made in your browser, and no sign-up or account is needed.
- Type the network name exactly as it appears in your Wi-Fi settings, including capital letters and spaces.
- Choose the security type. For WPA, WPA2 or WPA3 networks, choose the "WPA" option. Choose "WEP" for a WEP network, or "none" for a network with no password.
- Enter the Wi-Fi password.
- Tick "hidden" only if the network is hidden. If the network shows up in the Wi-Fi list on phones, leave it unticked.
- Check the scan result. Every design is test-scanned in the browser before download. If it will not scan, the page says so and suggests a fix, usually more contrast.
- Download the PNG for screens, or the SVG for print.
Your password stays in your browser
The code is generated in your browser. Wi-Fi passwords are never sent to our servers or stored on them. The printed code does hold the network name and password, though, so treat the printed code the way you would treat the password itself.
Where to put the code
Good spots include a guest room, a front desk, a café table, or a page in a rental welcome book. Put it where a guest can reach it with a phone camera. A short line such as "Scan to join Wi-Fi" next to the code tells guests what it does.
Tip: use a separate guest network
If your router offers a guest network, make the code for that network. Guests can then connect without learning the password for your main network, and your main network stays private.
Changing the password means a new code
Important: static codes cannot be edited. If you change the Wi-Fi password or the network name, the printed code will no longer join the network, and you need to make and print a new one. Static vs dynamic QR codes explains the trade-off between the two types.
Size, color and printing
Print the code at least 2 cm (about 0.8 inch) wide. The scanning distance can be about 10 times the code's width, so a larger code can be scanned from farther away. A long network name or password makes a denser code, so give it more room. The full guide is in the QR code size guide.
- Leave a blank margin around the code. The standard calls for 4 modules (the small squares that make up the pattern). Many codes still scan with less, but do not go below 2.
- Use dark dots on a light background. Light-on-dark codes do not scan on some older scanner apps.
- Higher error correction levels recover more damaged data, but they make the code denser.
- For print, download the SVG, which is vector. PNG downloads come in 512, 1024, 2048 or 4096 pixels.
Test before you print
Always test-scan the code with a phone before you print a large run. Stand where a guest would stand, in the room where the code will hang, and check the result at that distance.