How to use it
Type the exact network name (it is case sensitive) and the password, choose the security type your router uses (WPA covers WPA2 and WPA3 personal, which is almost every modern router) and tick Hidden network if the name is not broadcast. The tool writes these details in the standard WIFI text format, in which special characters such as semicolons and colons are escaped, and draws the QR code instantly as you type.
When a guest scans the code with a recent Android or iPhone camera, the phone offers to join the network without anyone typing the password. Download the code as a PNG to print or as an SVG that stays sharp at any size, keep the quiet margin around it, and use dark squares on a light background for the most reliable scanning. Anyone who can see the code can join the network, so treat it like the password itself and print it only where you are happy for people to use the Wi-Fi.
The password is used only to build the code in your browser and is not sent or saved anywhere. Enterprise networks that need a username and certificate cannot be shared this way. For a general-purpose code with links, text and contacts use the QR Code Generator, to take payments by scan use the UPI QR Code Generator, and for strong router passwords see the Password Generator.
Supported formats and limits
| Format | The standard WIFI: text format read by the camera apps on current Android and iPhone devices. |
|---|---|
| Security | WPA/WPA2/WPA3 personal, WEP, or no password. Hidden networks are supported. |
| Downloads | PNG (whole pixels per square, 128–2048 px) and SVG (any size). Transparent background optional. |
| Scan reliability | Error-correction levels L to H, adjustable margin, and warnings for low contrast or inverted colours. |
| Not supported | Enterprise (802.1X) networks, which need more than a password. |
| Privacy | The network name and password are used only to build the code in this tab; nothing is sent or stored. |
Practical examples
A home guest network
- Situation
- Enter the network name, choose WPA and type the password.
- What to expect
- A QR code appears as you type. Guests open their camera, scan it and tap the prompt to join. Test it with your own phone before printing.
A café with an open network
- Situation
- Choose “No password (open network)”.
- What to expect
- The code contains only the network name, so scanning joins the network directly. Open networks are unencrypted, so avoid them for private use.
A password with special characters
- Situation
- A password containing a semicolon or a colon.
- What to expect
- Those characters are escaped automatically so the code still joins correctly; the preview and a test scan confirm it.
The numbers behind it
WIFI:T:<security>;S:<network name>;P:<password>;H:<true if hidden>;;modules per side = 17 + 4 × version
- T is WPA (covers WPA2 and WPA3 personal), WEP, or nopass for an open network
- The characters \ ; , : and " in the name or password are escaped with a backslash
The code stores your network details as text in a standard format that phone cameras understand.
Honest limits
- Works with the camera apps on current Android and iPhone devices; very old phones may need a separate scanner app.
- Anyone who sees the code can join the network; treat it like the password.
- Enterprise (802.1X) networks are not supported.