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

QRCode to Waze or GoogleMaps

Add qrcode support to your activerecord model.

二维码批量生成工具，支持内嵌Logo

API client for qrcodefyi.com. Look up QR code types, versions, encoding modes, error correction levels, and standards. Zero dependencies.

A gem to generate working QRCodes with images in their background

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

super fast qrcode generator

A library to encode QR Codes

Generate pretty QR code

Generate QR code

login with wechat account by scanning qrcode with phone

An image file generator for QRCodes using RMagick

Creates an SVG graphic of a QR Code. Adds a to_svg method to the RQRCode::QRCode class provided by the 'rqrcode' gem.

A ruby library to create qrcode. Output: PS, JPEG, PNG, EPS, TIFF.

QRCode and Barcode generator for rails

A ruby library to create qrcode. Output: PS, JPEG, PNG, EPS, TIFF.

Simple wrapper for Google's QRCode generator

jQuery plugin to dynamically generate QR codes.

Go ZXing QR Code Encoder Ruby wrapper.