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QRCode.js is javascript library for making QRCode. QRCode.js supports Cross-browser with HTML5 Canvas and table tag in DOM. QRCode.js has no dependencies.

This component provides services for barcode encoding and decoding in different formats: CODE 39, CODE 128, QR, EAN13, EAN8, AZTEC, DATA MATRIX, etc. through ZXing library (http://code.google.com/p/zxing/)

Implements qrcode.js Cross-browser QRCode generator for javascript

QR Code Generator

jquery.qrcode.js is jquery plugin for a pure browser QR code generation. It allow you to easily generate QR code based on an input string or on the basis of automatic random string value.

Enabled you to use Camera on reactive to scan Barcode and QRcode.
Based on https://atandrastoth.co.uk/main/pages/plugins/webcodecamjs/

QRCode generator for outsystems mobile applications.
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Has QRCodeGenerator reusable block which return the Image URL of the generated QRCode.

Server side creation of QR codes in PNG, SVG image or PDF file format.

Read QrCode and other Codes from WebCam

Generate Qr Codes on client side.
Functions Offline

A QR code generator that provides a variety of options including adding custom logo (Traditional Web)

A JavaScript library that generates customizable QR codes using plain JavaScript and HTML5 canvas. It is completely written in JavaScript with no third-party libraries like jQuery. It is lightweight, it has a flexible API, and it can be easily customized to your needs.

Allows to scan multiple types of barcordes and QRCodes using Cordova ScandIt SDK version 6.X

Example of
https://docs.scandit.com/data-capture-sdk/cordova/get-started-barcode.html

PDF with Barcode samples available here:
https://websdk-lookup.demos.scandit.com/assets/barcodes.pdf

A QR code generator that provides a variety of options including adding custom logo, change of background colour, size and title

https://www.npmjs.com/package/easyqrcodejs#options

This is a cross-platform JavaScript library to integrate QR code, bar codes & a few other types of code scanning capabilities to your applications running on HTML5 compatible browser.

Supports all mobile browsers and web browsers which supports HTML 5.

Supports:

Querying camera on the device (with user permissions)
Rendering live camera feed, with easy to use user interface for scanning
Supports scanning a different kind of QR codes, bar codes and other formats
Supports selecting image files from the device for scanning codes

Derived from this GitHub Code,
https://github.com/mebjas/html5-qrcode

QR Code svg generator

Widget to generate Qr Code with formatting options.

QrCode generator allow Outsystems users to create a Qrcode with Logo inside

This component parses a Medicine Verification QR Code to its components.

A wrapper for the SimpleQRCode extension by Miguel Meireles.

QR code API
You can generate QR code graphics with QR code generator web API at api.qrserver.com.

http://goqr.me/api/doc/create-qr-code/