Quick Start

zxing-js/library runs on Node.js and is available as an NPM package. You can install zxing-js/library in your project's directory as usual:

npm i @zxing/library --save

or using yarn

yarn add @zxing/library

Example of a simple QRCodeReader in an ES6 environment.

import { BinaryBitmap, HybridBinarizer, QRCodeReader, RGBLuminanceSource } from '@zxing/library';

const reader = new QRCodeReader();

// Extracted image byte array and dimensions
const luminanceSource = new RGBLuminanceSource(imgByteArray, imgWidth, imgHeight);
const binaryBitmap = new BinaryBitmap(new HybridBinarizer(luminanceSource));

try {
  reader.decode(binaryBitmap);
} catch (err) {
  console.error(err);
}