The complete guide to Wi-Fi QR codes (free templates)
There's no good reason to ask guests to type your Wi-Fi password anymore. A Wi-Fi QR code on every table or in every room solves it in one scan.
How Wi-Fi QRs work. A Wi-Fi QR encodes a special string: `WIFI:T:WPA;S:NetworkName;P:Password;;`. When scanned, iOS 11+ and recent Android devices recognize the prefix and offer "Join NetworkName" with one tap. No app, no browser, no settings menu.
Encryption types you can encode:
WPA / WPA2 — by far the most common. Pick this for almost every modern router.
WEP — ancient, insecure. Only for very old routers. Replace your router if you're still on WEP.
None — open networks. Encodes no password.
WPA3 — current best. Encoded the same as WPA in the QR (the upgrade is transparent on the device side).
Hidden networks: add the "Hidden" flag. The QR can still auto-join, but the device needs to know it should look for a hidden SSID.
Hotel deployment tips:
One QR per room — print a small card or place it on the desk.
Rotate guest passwords monthly; reprint cards.
For larger properties, segment by floor/wing with different SSIDs to balance the AP load.
Restaurant deployment tips:
One QR on every table tent.
Make the Wi-Fi password something memorable (in case the QR is damaged), but not your phone number.
If you want to require email opt-in before granting Wi-Fi, you need a captive portal — Wi-Fi QRs alone can't do that.
Common questions:
*Can someone reverse-engineer the password from the QR image?* — Yes, but they'd need the QR image and a decoder. Anyone who can see the QR can already auto-join, so the threat model is the same as a printed password sticker.
*Will my password leak if I post the QR on social media?* — Yes. Anyone who can read the QR can read the password. Don't post it.
*Does it expire?* — Static Wi-Fi QRs don't expire. They work as long as the network exists with the same password.
Make one for free in 30 seconds on the QRQuick homepage — pick "Wi-Fi" from the type bar, fill in your SSID + password, download, print.