How to make a Wi-Fi QR code
- Network name. Type it exactly as it appears in your phone's Wi-Fi list, including capital letters and spaces.
- Password. Also case-sensitive. Leave it empty for an open network.
- Security. Almost every router made in the last decade uses WPA, WPA2 or WPA3, so keep the default. Pick WEP only for very old equipment, and None for open networks.
- Test, then download. Scan the preview with your own phone and check that it joins. Download SVG for print or PNG for screens.
How guests use it
On an iPhone, guests open the Camera app, point it at the code and tap the Join network prompt. On Android, the Camera app or Google Lens does the same, and on Android 10 and later the Wi-Fi settings screen has its own QR scanner under Add network. Nobody needs to install an app.
What is inside the code
A Wi-Fi QR code is a short line of text in a format phones recognize:
WIFI:T:WPA;S:Cafe Guest;P:espresso2026;;T is the security type, S the network name and P the password. Semicolons, colons, commas, quotes and backslashes have a special meaning in this format, so they must be escaped with a backslash. The generator does that for you, so a password like pa;ss:word works as typed.
Because the code is built in your browser, your network name and password are never sent to qrfun.app or anywhere else.
Tips before you print
- Share a guest network, not your main one. Anyone who scans the code can read the password, so keep your main network private. Most routers can set up a separate guest network in a few minutes.
- Print the details underneath. Laptops and some older phones cannot scan codes, so add the network name and password as text for them.
- Make it big enough. On a table card, 3 to 4 cm (about 1.5 in) wide is plenty. On a wall across the room it needs to be much larger: see how big to print a QR code.
- Broadcast the network name. This generator does not mark networks as hidden, so it works best with a network whose name shows up in the Wi-Fi list.
- Add a label. A line such as "Scan to join our Wi-Fi" tells people what the code is for.
Why Wi-Fi codes are always static
A dynamic QR code holds a short link that redirects to a web page. Joining Wi-Fi is different: the phone has to read the network name and password from the code itself, before it is even online. So Wi-Fi codes are always static, and changing your password means printing a new code. The upside is that the code never depends on this site. It keeps working for as long as your network does.