WiFi QR code generator
A WiFi QR code stores your network name, security type and password. Guests point their phone camera at it and join without typing a single character.
Updated September 24, 2026
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This QR code holds your data directly: it won't be editable or tracked.
What is inside a WiFi QR code
There is no link in a WiFi code. The pattern holds the connection details themselves, written in a format that the iPhone and Android cameras both understand. This is the exact string QRTada encodes for a WPA-protected network:
WIFI:T:WPA;S:Blue Door Guest;P:espresso2026;;| Field | Meaning | Accepted values |
|---|---|---|
T | Security type | WPA (covers WPA2 and WPA3), WEP, or nopass for an open network |
S | Network name (SSID) | Case-sensitive, spaces allowed |
P | Password | Left out for an open network |
H | Hidden network | true, added only when the name is not broadcast |
Five characters have a special meaning in this format: backslash, semicolon, comma, colon and double quote. When one of them appears in your password or network name, it has to be escaped with a backslash. The designer does it for you, so type your password exactly as it is.
Why a WiFi code is always static
To join a network, the phone needs the password before it has any connection, so it cannot fetch a web page first. A WiFi code is therefore always a static code: everything lives in the pattern. That is also its strength. It works in airplane mode, never expires and does not depend on any server, ours included. Static codes are included on every plan, with no cap on how many you make.
The trade-off is simple: change the password and you reprint the sign. Short-term rental hosts and offices avoid this by running a guest network with a stable password, and rotating only the private one. The Airbnb QR code guide shows a full setup.
Phone support
| Device | How | Notes |
|---|---|---|
| iPhone (iOS 11 and later) | Built-in Camera app | A "Join network" banner appears |
| Android 10 and later | Camera app or Google Lens | Depending on the brand, it sits in the camera or in the WiFi settings |
| Samsung Galaxy | Camera, "Scan QR codes" setting | On by default in recent One UI versions |
| Laptops and desktops | No automatic join | Print the password in plain text for them |
If a guest cannot connect, point them to the guides for iPhone and Android, which cover the settings to check.
Three mistakes that break the connection
- An unescaped special character: a semicolon in the password cuts the string short. The phone tries a truncated password and fails without a clear error.
- Wrong capitalization in the network name:
BlueDoorandbluedoorare two different networks to a phone. Copy the name exactly as your router shows it. - A 5 GHz-only network: some older phones cannot see 5 GHz networks. If your router splits the bands, make the code for the 2.4 GHz network or enable a combined guest network.
Sign size and placement
On a counter or a table, people scan from 12 to 20 inches away: a 1.5 to 2 inch code is plenty. On a waiting room wall read from 5 feet, go for 6 inches. The QR code size calculator gives the exact figure for any distance. In a cafe, a table tent is the spot guests look at first.
Your codes keep working, even if you stop paying
Every code you create or edit on a paid plan keeps redirecting to its last destination, forever.
Static codes are included in every plan: they rely on no server and never expire.
Read the lifetime guarantee termsFrequently asked questions
Does a WiFi QR code need internet to work?
No. The phone reads the password straight from the pattern, with no server involved.
What happens if I change my router password?
The code still holds the old password, so you generate a new one and reprint it. A guest network with a stable password avoids that.
Is it risky to display my WiFi password?
Not if it is an isolated guest network. Never post the password of the network your point of sale runs on.
My router already shows a QR code. Why make another one?
Router codes are tiny and plain. Here you choose the size, colors, your logo and a call to action such as "Free WiFi", ready to print.
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