Wi-Fi QR codes: the right way to share guest network access

A Wi-Fi QR code is one of those tiny upgrades that punches way above its weight. Guests, customers and visitors connect instantly — you never have to read your password out loud again.

The format

Wi-Fi QR codes follow a standard string format that iOS and Android both understand natively:

WIFI:T:WPA;S:NetworkName;P:Password;;

• T — encryption type (WPA, WEP, or nopass)
• S — SSID (network name)
• P — password
• A trailing double semicolon closes the payload

LinkToQR.co’s Wi-Fi tool builds this string for you — just enter SSID:Password and we encode the rest.

Security best practices

• Use a guest network. Don’t share your primary Wi-Fi credentials. Most routers support a separate guest SSID with no LAN access.
• Rotate periodically. If the QR is in a public spot (a café table, an Airbnb), change the password every few months.
• Avoid printing it on outdoor signage. Anyone within camera range can scan it.

Best placements

• Reception desks and waiting rooms
• Café tabletops (laminated)
• Airbnb welcome packets
• Office visitor kiosks
• Conference badges

Quick design checklist

• High-contrast (dark on light) for reliable scanning
• At least 2.5 cm × 2.5 cm in print
• Pair with a “Scan to connect to Wi-Fi” label
• Test the scan from across the room before you print 200 copies

Generate yours here.