This application allows you to generare a QR code for your Wi-Fi network that you can you later use to let other people join by just scanning the code with their devices camera.
When your guest scans the generated QR code using their device it will ask if they would like to join your network.
You can also export the QR Code to a PNG file, which you can send to your friends, save it to your gallery or even print it directly within the app.
There is no limit on how many networks you can create and share using the code.