The Most Useful Site in the World⚡ The short version
Enter your Wi-Fi network name (SSID) and password. The tool generates a standard Wi-Fi QR code that any modern phone camera can scan to connect instantly. Your credentials are processed entirely in your browser — nothing is sent to a server.
The calculator
How to use it
- Network name (SSID) — exactly as it appears in your Wi-Fi settings, including capitalisation and spaces.
- Password — the current Wi-Fi password. Special characters are encoded correctly.
- Security type — WPA/WPA2 is the default and covers most home networks. WEP and open networks are also supported but WEP is rare and insecure.
- Hidden network — tick this if your network does not broadcast its SSID. The QR code will include the H: flag so the phone knows to look for it.
- Print or share the QR code. Guests scan it with their phone camera and connect without typing anything.
Worked example
Network: MyHomeWiFi, password: correcthorse99, security: WPA/WPA2. The tool encodes this into the standard Wi-Fi QR format: WIFI:T:WPA;S:MyHomeWiFi;P:correcthorse99;;
That string becomes a QR code. Any iPhone (iOS 11+) or Android phone (10+) with a camera app that reads QR codes will recognise the WIFI: prefix and offer to connect — no app installation, no typing. The password is embedded in the QR code itself, which is why you should only display this code where you trust the visitors.
A hidden network adds H:true to the string. Without it, a phone will try to connect to a visible network of that name and fail silently if the network is hidden.
What to know before you print
- Security of the QR code itself. The QR code is a plain encoding of your SSID and password. If you photograph or share the code image, you are sharing your password. Treat it like a written password.
- Special characters in SSID or password. If your network name or password contains a semicolon, comma, backslash, double quote or colon, the tool encodes them with a backslash escape as the Wi-Fi QR specification requires. Most phone cameras handle this correctly; a few older models do not.
- Enterprise networks (WPA2-Enterprise / 802.1X). These use a username and password or certificate, not a shared passphrase. The standard Wi-Fi QR format does not support enterprise authentication — this tool is for home and small-office WPA2-Personal networks.
- Router compatibility. Some ISPs lock the SSID or password; if you change either, the QR code needs regenerating. The tool does not store previous codes.
🛠️ Related tools
❓ Frequently asked questions
How does a Wi-Fi QR code work?
The QR code encodes a string in the format WIFI:T:WPA;S:networkname;P:password;;. When a phone camera scans it, the operating system recognises the WIFI: prefix and offers to connect to that network with the stored credentials — no app installation or manual entry needed.
Is my Wi-Fi password safe when I generate a QR code?
In this tool, yes — the QR code is generated entirely in your browser. Your password is never sent to a server. However, the QR code itself contains the password in readable form, so anyone who scans it (or photographs the printed code) can read it. Display the code only where you trust the audience.
Which phones can scan Wi-Fi QR codes?
iPhones running iOS 11 or later (using the built-in Camera app) and most Android phones running Android 10 or later (using the camera or Google Lens). On older phones, a dedicated QR scanner app may be needed.
Can I use this for a guest network?
Yes, and it is one of the best uses. Generate a separate QR code for your guest network and print it near the door. Guests connect without you spelling out the password, and you can change the guest password whenever you like — just regenerate the code.