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.

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

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

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

super fast qrcode generator

A library to encode QR Codes

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

make qrcode for the kingblade III.

login with wechat account by scanning qrcode with phone

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.

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

An rqrcode wrapper for adding a website, a contact, wi-fi settings, location, event, cryptocurrency and more

QRcode decoder based on quirc

An image file generator for QRCodes using RMagick

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

Go ZXing QR Code Encoder Ruby wrapper.