WiFi QR Code — Complete Guide
Definition: A WiFi QR code encodes network credentials (SSID, password, encryption type) so devices can connect to a WiFi network automatically by scanning.
WiFi QR codes use a special format: WIFI:T:WPA;S:NetworkName;P:Password;;. When scanned, the phone automatically joins the network without manual password entry. Supported on iPhone (iOS 11+) and all modern Android devices. Common security types: WPA/WPA2 (most common), WEP (legacy), and nopass (open networks).
Key points
- Format: WIFI:T:security;S:ssid;P:password;;
- Works on iPhone (iOS 11+) and Android
- Supports WPA, WPA2, WEP, and open networks
- Guest network recommended for public sharing
- Hidden networks supported with H:true parameter
- Print and frame near router or entrance
Frequently asked questions
Is it safe to share WiFi via QR code?
As safe as sharing the password verbally. For public spaces, always use a guest network with internet-only access, separated from your private network.
Do WiFi QR codes work on iPhone?
Yes! iPhones running iOS 11 or later can scan WiFi QR codes with the built-in Camera app and connect automatically with one tap.
What if my WiFi password changes?
You'll need to generate and print a new QR code with the updated password. Static QR codes can't be updated after creation.
Related terms
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