QR Code play online

Today, QR code is used commonly and widely. Differ from 1D barcode, its content can't be seen directly.
So, you need a QR code reader, QR code scanner to see the content of it.

It has too many applications about QR code reader, QR code scanner to read, scan QR code, but this is one of the best with special features:
- support many barcode types: QRcode, EAN, UPC, Code128, ITF-14, Code39, ...
- scan barcode in image file with hight speed (support 90 degree rotated image).
- auto decode content received, support many formats: calendar, wifi, location, message, ... Show metadata of scanned QR code: version, error correction level, encode mode.
- generate QR code with variarity contents: text, calendar, wifi, location, ... Allow setting metadata of generated QR code: version, error correction level