QR Code is a type of two dimensional (2D) matrix barcode.
Compare to standard UPC barcodes, QR Code has better ability such as easy & fast readibility, and large storage capacity.
Because of its readibility & capicity, this barcode becomes popular especially on smartphones.
Almost today's smartphones has capability to read this barcode.
You can use below tool to generate up to 50 QR Codes in one time!
Bulk QR Code Generator