Create a QR Code for connecting to Wifi

This should work with iOS 11+ and recent Android versions.

Simply open the phone camera and point at the QR Code. A message should pop up asking if you want to connect to Wifi.

The actual text encoded in the QR code for a Wifi connection is…

WIfI:S:<SSID>;T:<WPA|WEP|>;P:<password>;;

Detailed description at https://github.com/zxing/zxing/wiki/Barcode-Contents#wifi-network-config-android

This can be used by ANY QR code generator, such as in Brother P-Touch label printer.

Examples:

WIFI:S:MyWifi;T:WPA;P:mywifipasscode;;

Online QR Code Generators

• https://qifi.org/
  • Clean and easy to use
  • Doesn’t generate the raw text for you, but does link to the above spec page telling you how to generate the text manually
• http://zxing.appspot.com/generator/
  • Clean and easy to use
  • More features
  • Shows the raw text
• Other generators with different features:
  • https://www.qrstuff.com/
  • http://blog.qr4.nl/QR-Code-WiFi.aspx

Useful info

• https://9to5mac.com/2017/06/12/top-10-qr-codes-supported-by-ios-11/ describes several types of QR code supported by ios 11
• https://9to5mac.com/2017/06/06/ios-11-share-your-wifi/ not about QR codes, but describes another useful Wifi-related feature in iOS 11