GNU-Barcode - GNU Barcode is a tool to convert text strings to printed bars.
Splitter - Splitter enables big brands like CNN, Carlsberg, and hundreds of others to effectively manage, track and split all their links and QR codes from one place.
ZXing Project QR Code Generator - Generate QR Codes.
Kaywa QR Code - Kaywa QR Code is a QR-Code Generator.
Offline QR Code Generator - A browser add-on that allows you to quickly generate a QR code offline with the URL of the open tab...
qurify - Online QR Code generator with some advanced settings and print queue.