A WiFi QR code is a matrix barcode that encodes your network credentials in the format WIFI:S:[SSID];T:[WPA|WEP|];P:[password];H:[true|false];;. When a smartphone camera reads this code, the operating system parses it and presents an option to join the network immediately — no typing required.

Which devices can scan WiFi QR codes natively?

• iPhone / iPad: iOS 11+ and iPadOS 13+ — use the built-in Camera app
• Android: Android 10+ — use the default Camera app or Google Lens
• Older Android: Download a QR scanner app (e.g. Google Lens, QR & Barcode Scanner)
• Windows / macOS: Connect manually, or use phone camera first

How to share WiFi password on iPhone

The easiest method for iPhone-to-iPhone sharing is Apple's built-in AirDrop password share. But for sharing with any guest on any device, a WiFi QR code is the universal solution: generate it once, print it, and every guest can use it — regardless of their device or OS.

Create a separate guest network

Most modern routers support a guest network that isolates visitors from your main network. Share the QR code for the guest network — not your primary one. This protects your personal devices and data.

How often to rotate the password

For home networks: annually is fine. For businesses with high guest turnover: monthly or quarterly. When you update, simply regenerate your QR code here — it takes under 10 seconds.

Physical placement matters

• Print at least 5 × 5 cm (2 × 2 inches) for reliable scanning
• Use high-contrast colors — dark QR on white background scans best
• Laminate prints to protect from moisture in cafés and restaurants
• Keep it away from direct sunlight to prevent glare

What if my password changes?

QR codes are static. If you change your WiFi password, return here and generate a new code with the updated password. Replace the printed version immediately to avoid guests scanning the old one.