How to Generate QR Codes in Node.js & Express (qrcode npm Guide)

The qrcode npm package is the industry standard for backend Node.js and Express microservices.

1. NPM Installation

npm install qrcode

2. Node.js Code Example

const QRCode = require('qrcode');

QRCode.toFile('my_qr.png', 'https://www.pngqr.com', {
  color: {
    dark: '#000000',
    light: '#ffffff'
  }
}, function (err) {
  if (err) throw err;
  console.log('QR code saved successfully!');
});