Prawn/QRCode simplifies the generation and rendering of QRCodes in Prawn PDF documents.

QRCode to Waze or GoogleMaps

A gem to generate working QRCodes with images in their background

二维码批量生成工具，支持内嵌Logo

Add qrcode support to your activerecord model.

Ruby gem for Qrcode generation of Pix (Pagamento Instantâneo Brasileiro - Banco Central do Brasil)

super fast qrcode generator

upload ipa/apk to aliyun oos server, and scan QRcode to install app on mobile phone.

QRCode and Barcode generator for rails

simple text for qrcode

Creates QR code files in png, bmp, png, jpg, tif and svg file format. This is fork of sam vincent rqrcode-rails3

An image file generator for QRCodes using RMagick

Process to generate and read data EMV QRCode

login with wechat account by scanning qrcode with phone

QRcode decoder based on quirc

rQRCode is a library for encoding QR Codes. The simple interface allows you to create QR Code data structures ready to be displayed in the way you choose.

Go ZXing QR Code Encoder Ruby wrapper.

Generate QR code

Generate pretty QR code

make qrcode for the kingblade III.