Prawn-qr is a prawn extension for creating QR Codes inside of a prawn document

Generate pretty QR code

putqr displays a QR code in your terminal.

Simple QR interface to pws gem. Helps to use your passwords on a smartphone.

This is a very simple framework to create small frontends in a webserver

Generates QR codes on the command line using ANSI terminal colors

Add qrcode support to your activerecord model.

二维码批量生成工具，支持内嵌Logo

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

QRCode to Waze or GoogleMaps

Rails Engine that handles authentication, admin, 2fa, audit tracking, with insane configuration abilites

RailsMFA is a provider-agnostic, plug-and-play gem that adds secure multi-factor authentication (MFA/2FA) to any Rails app. Supports SMS, email, and authenticator apps (TOTP) with customizable providers.

微信集成一揽子解决方案

Rhet Butler is a presentation assistant. Build a slide deck in simple YAML, design it in CSS, run the presentation with your smartphone over Websockets.

An extremely narrow in scope, convention-over-configuration TOTP integration for Rails

command line interface for rqrcode

Glues rQRCode together with chunky_png

Render QR codes with Rails.

Render QR codes from Rails as images or SVG.

Combined with RQRCode, this gem allows you to generate QR codes as SVG documents.