The QR code can contain all of your important contact details in one small image that is scan-able by most smart phones. When you hand someone your business card, they may keep it, or like most people they will stick it in their pocket and wash it in their next load of laundry. By adding a QR code, you will encourage this person to scan your QR code on your business card with their phone and instantly be able to add you and all your information to their contacts.
Create QR code of any Website or URL and Save as a Image file.
Create QR Code of Address book very easily.
QR Maker also support Email QR Code. Write Your mail and Address to Create email QR Code.
Share WIFI without disclosing your Password just create a WIFI Encryption QR code and you are good to go.