Android: If you want to give a friend access to your Wi-Fi network with her Android phone, you can do it more quickly than sharing your SSID and making her type out your entire WPA passcode. Here’s how to generate a QR code containing your network password, then use the Barcode Scanner app to automatically log onto your network in one snap of the code.
Note: As an alternative to the method detailed here, you could use the previously mentionedWifi Joiner app which generates a QR code for your network, but that requires the other user to have Wifi Joiner installed too.
To create your QR code, head over to ZXing Project’s QR Code Generator site (ZXing are the developers of Barcode Scanner).
In the drop-down, select “Wifi network”, then enter in your SSID (network name), password. and network encryption type (e.g., WPA/WPA2).
Once you click the Generate button, you’ll get a QR code you can save and print out if you like.
Your friend will need to have the free Barcode Scanner app. To connect to your network, all he/she has to do is scan the QR code.
The nice thing about this method is Barcode Scanner has a lot of other uses, such as looking up product prices and sharing apps via QR codes, and your friend might already have the app installed. You get to keep your Wi-Fi network password private and make it much easier for your friends to join your network.
Thanks for the tip, stormgren!
Note: If someone scans your QR code using a different QR code scanner, it’ll simply display your network password as plain text—which is still a quicker way to get your password to a friend’s phone, particularly if you have a long or complicated password. This tip is best for home use, where you wouldn’t mind a friend seeing your network password in plain text, anyway.