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What Are WiFi QR Codes?
A WiFi QR code is a special QR code that contains your wireless network credentials in the WIFI: protocol format. When someone scans it with their phone camera, their device automatically connects to your network without typing the password manually. This standard is supported natively on iOS, Android, and most modern devices.
The encoded data follows the format WIFI:T:;S:;P:;; where T is the encryption type (WPA, WEP, or nopass), S is the network name, and P is the password. The QR code generator handles this formatting automatically so you just enter your network details.
How to Create a WiFi QR Code
Creating a WiFi QR code takes three pieces of information from your network settings.
- Network name (SSID) -- the name of your WiFi network as it appears in available networks lists
- Password -- your WiFi password exactly as configured on your router, including uppercase, lowercase, and special characters
- Encryption type -- select WPA/WPA2 (most common for home and business networks), WEP (legacy networks), or None for open networks
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Generate WiFi QR Code →Where to Use WiFi QR Codes
WiFi QR codes eliminate the awkward process of sharing passwords and reduce support requests from guests trying to connect.
- Restaurants and cafes -- print the QR code on table cards, menus, or wall signs so customers connect instantly without asking staff
- Offices and coworking spaces -- place QR codes at reception desks and meeting rooms for visitor WiFi access without IT involvement
- Short-term rentals and hotels -- include a WiFi QR code in the welcome guide or on a bedside card so guests connect on arrival
- Events and conferences -- display QR codes on event badges, screens, or printed materials for instant attendee connectivity
Frequently Asked Questions
Is sharing WiFi via QR code secure?
The QR code itself contains the password in plain text within the encoded data, so anyone who scans the code or decodes it can see the password. This is equivalent to printing the password on paper. For guest networks this is fine since you are intentionally sharing access. For sensitive networks, use a separate guest network with its own credentials.
Does this work with WPA3 networks?
The WIFI: protocol used in QR codes supports WPA3 through the SAE encryption type. However, device support for WPA3 QR codes varies. Most modern phones running iOS 16+ or Android 12+ can connect to WPA3 networks via QR code. For maximum compatibility, use WPA2 on your guest network.
Can I create a QR code for a hidden network?
Yes. The WIFI: protocol supports a hidden network flag (H:true) that tells the device to connect even if the SSID is not broadcasting. The generator includes a hidden network toggle for this purpose. Note that hidden networks are not more secure since the SSID is still transmitted during connections.
What size should I print the QR code?
For reliable scanning, print the QR code at least 2 cm (0.8 inches) per side for close-range scanning such as table cards. For wall signs or posters scanned from a distance, use at least 10 cm (4 inches) per side. Download the SVG format for print use to ensure crisp edges at any size.