QR Code Generator

Generate URL string for Google QR code and render HTML img string

Ruby Gem to generate PNG files with QR codes in them

A library for generating QR Codes for the e-invoice standard by ZATCA in Saudi Arabia.

A simple ruby QR Code generator with C backing for speed

Ruby prompt pay QR-code generator

Generates PNG images of barcodes. Currently supports EAN8, EAN13, QR-Code, ISBN, CODE39, CODE128, UPCA, UPCE, ITF

Generates QR codes on the command line using ANSI terminal colors

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

Generate an artistic QR codes.

jQuery plugin to dynamically generate QR codes.

Generate QR code

Process to generate and read data EMV QRCode

This gem generates QR-Codes.

A ruby library for generating one time passwords and QR Codes

Encrypt, decrypt and generate QR code information for einvoice(Taiwan)

Generate pretty QR code

Uses a google web service to generate QR codes

TOTP stands for Time-Based One-Time Password. Many websites and services require two-factor authentication (2FA) or multi-factor authentication (MFA) where the user is required to present two or more pieces of evidence: Something only the user knows, e.g., password, passphrase, etc. Something only the user has, e.g., hardware token, mobile phone, etc. Something only the user is, e.g., biometrics. TOTP stands for Time-Based One-Time Password. Many websites and services require two-factor authentication (2FA) or multi-factor authentication (MFA) where the user is required to present two or more pieces of evidence. A TOTP value serves as the second factor, i.e., it proves that the user is in possession of a device (e.g., mobile phone) that contains a TOTP secret key from which the TOTP value is generated. Usually the service provider that provides a user's account also issues a secret key encoded either as a Base32 string or as a QR code. This secret key is added to an authenticator app (e.g., Google Authenticator) on a mobile device. The app can then generate TOTP values based on the current time. By default, it generates a new TOTP value every 30 seconds.

Generates QR codes that you may use in the rest of your workflow.

This gem generates UPI QR codes for payments. It can be used in e-commerce applications to generate QR codes for payments. The QR codes can be scanned by UPI apps to make payments. The gem uses the rqrcode gem to generate the QR codes.

A library for generating QR Codes for the e-invoice standard by ZATCA in Saudi Arabia.

Gem to generate QR code from text