Qrcode

Let's develop a QR Code Generator, part IV: placing bits

Let's develop a QR Code Generator, part III: error correction

Let's develop a QR Code Generator, part I: basic concepts

Let's develop a QR Code Generator, part II: sequencing data

Diving into Dynamsoft JavaScript Barcode Scanner

How to Scan QR Code from Desktop Screen in Python

Create a QR Code with Python

How to Decode QR Code from WebP Images in C++ and Python

Building a QR code generator with Ruby on Rails