Use the details from your router
Enter the exact network name (SSID), select WPA/WPA2 or no password, and provide the password when required. Spaces and capitalization matter. Enable the hidden-network option only if your router does not broadcast the network name.
This form accepts an SSID of up to 32 UTF-8 bytes and a WPA/WPA2 password of 8–63 bytes or a 64-character hexadecimal key. Unicode may use several bytes per character, and non-ASCII passwords need testing with the actual router and phone.
For example, a guest network named Studio Guests can use WPA/WPA2 with its own guest password. After creating the image, try it on a device that is not already connected before printing a sign.
How the Wi-Fi information is encoded
The WIFI: payload stores the network name, security setting, password, and hidden flag directly. The generator escapes format-sensitive punctuation, including semicolons and backslashes, so those characters can remain part of your real network details. Type the original values; do not add escape characters yourself.
A compatible scanner may offer to join the network. Device support varies, and a successful image decode does not prove that the router accepted the password. This tool supports personal WPA/WPA2 networks and networks without a password; enterprise login and captive-portal sign-in are not configured by the QR.
Share access deliberately
Anyone who has the image can recover the encoded password. Hiding the printed password on a Wi-Fi card only removes the visible text; it does not remove it from the QR. A separate guest network is useful when you want to share access without publishing your main network credentials.
If a scan identifies the network but cannot connect, compare the security setting, SSID, password, and hidden flag against the router. Changing the network name or password means the old card needs to be replaced.