Skip To Content
BuzzFeed News Home Reporting To You

QR Codes

Two-dimensional barcodes that let you encode secret messages in the form of text, music, voice, logos are becoming increasingly popular in Japan.

Posted on April 21, 2008, at 4:53 p.m. ET

All you need is a camera phone and some QR software to start using them. They're like the 2.0 version of secret decoder rings.

Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.