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Wi-Fi QR code: guests scan and join your network
Type the network name and password once. Visitors point a phone camera at the code and connect, with no spelling out of long passwords. While you make it, the password never leaves your device.
- Works with phone cameras
- WPA, WEP or open networks
- Print-ready PNG, SVG and PDF
Design and error correction
More QR and barcode tools
How to make a Wi-Fi QR code
Find the name and password
They are usually on a sticker on the router, or in the router’s settings page. Use the guest network if you have one.
Type them exactly
Capitals, spaces and symbols all count. A single wrong character and phones will fail to join.
Pick the security type
Most home and office routers use WPA2 or WPA3, so leave the first choice. Tick Hidden network if the name is not broadcast.
Test, then print
Forget the network on your phone, scan the code and check that it joins. Then print it or add it to your welcome sheet.
What is inside a Wi-Fi QR code
Phone cameras recognize a short text format that starts with WIFI:. Ours for the example network reads WIFI:T:WPA;S:Cafe Guest;P:welcome-2026;;. Each field has a letter. The format is documented by the open-source ZXing barcode project, and phone cameras follow it.
Semicolons, colons, commas, quotes and backslashes have a meaning inside that text, so when they appear in a network name or password they must be escaped with a backslash. The generator does this for you, which is the usual reason hand-made Wi-Fi codes fail for passwords such as p@ss;word.
| Field | Holds | Example |
|---|---|---|
| T | Security type: WPA, WEP, or nopass for an open network | T:WPA |
| S | Network name (SSID), exactly as broadcast | S:Cafe Guest |
| P | Password, left out for open networks | P:welcome-2026 |
| H | true when the network is hidden | H:true |
Who can see the password
A Wi-Fi code is not encrypted. Anyone who scans it, or photographs it, can read the password with a QR reader, including ours. Treat the printed code exactly like the password written on a card.
That is fine for a café or a holiday rental, and it is why a separate guest network is the better choice in offices and homes: guests get online without reaching your printers, cameras or shared drives. If you change the password later, make a new code; the old one stops working the moment the password changes.
Where people put Wi-Fi codes
A few placements that work well, with the print size we suggest so a phone held at a natural distance reads the code first time:
| Place | Print width | Tip |
|---|---|---|
| Café table or counter card | 5 cm | Laminate it; add the network name as text for people without a camera app |
| Holiday rental welcome book | 4 cm | Use a frame with the caption "Wi-Fi" so guests know what it is |
| Office reception | 5 to 8 cm | Point it at the guest network, never the staff one |
| Meeting room screen | Half the screen height | Dark code on a white slide, not on a photo |
Questions
How do I join Wi-Fi with a QR code on an iPhone?
Open the Camera app and hold it so the code is in view, as Apple’s guide describes, then tap the prompt that appears to join the network. There is nothing to install.
How do I scan a Wi-Fi QR code on Android?
Open the camera or Google Lens and point it at the code, or use the scan icon in the Wi-Fi settings. Android can also make a code for the network you are on: Settings, Network and internet, Internet, your network, then Share.
Will the code still work if I change my Wi-Fi password?
No. The password is stored inside the code, so a new password needs a new code. The same goes for renaming the network.
Can someone get my Wi-Fi password from the QR code?
Yes. The code holds the password as readable text, and any QR reader can show it. Only display it where you would be happy to write the password itself.
Does it work for hidden networks?
Yes. Tick Hidden network and the code tells phones to look for it even though the router does not announce its name.
My password has symbols like ; or :. Will that break the code?
No. The generator escapes those characters with a backslash, the way phone cameras expect, and the scan check confirms the result reads back exactly.
Is my Wi-Fi password sent to you?
No. The code is made in your browser and nothing you type is uploaded or stored by uncrop.si.
Sources
Checked on 13 October 2026.
- Barcode Contents: Wi-Fi, contact, SMS and event formats (ZXing project wiki)
- Scan a QR code with your iPhone or iPad (Apple Support)
- Connect to Wi-Fi networks on your Android device (Android Help)
- Generating QR Code: margins and module size (DENSO WAVE)
QR Code is a registered trademark of DENSO WAVE INCORPORATED.
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