Does a Wi-Fi QR code work without internet?

Yes. The network details are inside the pattern, so scanning works entirely offline — which is the point, since the scanner is not online yet.

Is my Wi-Fi password uploaded anywhere?

In the Snipp builder the code is drawn in your browser, so the password never leaves your device.

Can I make a Wi-Fi QR code for a hidden network?

Yes — set the hidden flag when generating, and the phone will search for the non-broadcast SSID.

What if I change the Wi-Fi password?

The old code stops working. Generate a new one with the new password and reprint it; it takes under a minute.

How-to

How to Make a Wi-Fi QR Code for Guests

A Wi-Fi QR code turns a 20-character password into a one-second scan. Cafés, clinics, offices and Airbnbs all benefit.

Updated 3 September 2026 · 5 min read

A Wi-Fi QR code encodes your network name, security type and password in a standard format that iOS and Android both understand natively. Scanning it shows a "Join network?" prompt — no app, no typing.

Because everything is encoded in the pattern, the code keeps working with no internet connection and no service behind it.

What goes inside a Wi-Fi QR code

The payload is a single text string in the format WIFI:T:WPA;S:NetworkName;P:YourPassword;H:false;; — where T is the security type, S the SSID, P the password and H whether the network is hidden.

Special characters such as ; , : and \ must be escaped with a backslash. A builder handles that for you, which is the main reason not to type the string by hand.

Create it in four steps

1Open the Wi-Fi QR code generator and enter the network name exactly as it appears — SSIDs are case sensitive.
2Pick the security type: WPA/WPA2/WPA3 for almost every modern router, WEP only for legacy hardware, or None for an open network.
3Enter the password and tick "hidden network" only if the SSID is not broadcast.
4Scan the preview with a phone that is not already on the network, then download the SVG for printing.

Device support

iPhone: iOS 11 and later, straight from the camera app.
Android: Android 10 and later natively; earlier versions need a scanner app.
Laptops: most do not support Wi-Fi QR joining — always print the password in small text as a fallback.

Security tips before you print it

Use the guest network, not your main one, so scanners cannot reach printers, NAS drives or cameras.
Enable client isolation on the guest SSID so scanners cannot see each other.
Treat the printed code like the password itself — anyone who photographs it keeps access.
Rotate the guest password periodically and reprint; generating a new code takes seconds.
Never post a Wi-Fi QR code publicly online.

Where to place it

Table tents and menus in cafés and restaurants.
Reception desks, waiting rooms and meeting rooms.
Inside an Airbnb welcome book or on the fridge.
Next to the router itself, for the people who maintain it.

Frequently asked questions

Does a Wi-Fi QR code work without internet?: Yes. The network details are inside the pattern, so scanning works entirely offline — which is the point, since the scanner is not online yet.
Is my Wi-Fi password uploaded anywhere?: In the Snipp builder the code is drawn in your browser, so the password never leaves your device.
Can I make a Wi-Fi QR code for a hidden network?: Yes — set the hidden flag when generating, and the phone will search for the non-broadcast SSID.
What if I change the Wi-Fi password?: The old code stops working. Generate a new one with the new password and reprint it; it takes under a minute.

Try it yourself

Build a QR code free, or create a short link so you can count every scan.

Free QR code builder