README.md

Javascript-Barcode-Reader

Simple & Fast Barcode decoder for Browsers and Node.js capapable of reading Code128 (UCC/EAN-128), Code93, Code39, Standard/Industrial 2 of 5, Interleaved 2 of 5, Codabar and EAN-13 barcodes.

Try now

https://codesandbox.io/s/javascript-barcode-reader-liium

Available decoders

• EAN-13
• EAN-8
• Code-39
• Code-93
• Code-2of5
  • standard
  • Interleaved
• Codabar
• Code-128 (UCC/EAN-128)

How to use

Install

Recommended way to install is by using package manager (npm, yarn etc):

npm i javascript-barcode-reader

or use cdn:

<script src="//unpkg.com/javascript-barcode-reader"></script>

or download manually:

javascript-barcode-reader

Node.js

import javascriptBarcodeReader from 'javascript-barcode-reader'

javascriptBarcodeReader({
  /* Image file Path || {data: Uint8ClampedArray, width, height} || HTML5 Canvas ImageData */
  image: source,
  barcode: 'code-2of5',
  // barcodeType: 'industrial',
  options: {    
    // useAdaptiveThreshold: true // for images with shaded/ gradient portions
    // singlePass: true
  }
})
  .then(code => {
    console.log(code)
  })
  .catch(err => {
    console.log(err)
  })

Browser

javascriptBarcodeReader will be available as global in Browsers.

javascriptBarcodeReader({
  /* Image ID || HTML5 Image || HTML5 Canvas || HTML5 Canvas ImageData || Image URL */
  image: source,
  barcode: 'code-2of5',
  // barcodeType: 'industrial',
  options: {
    // useAdaptiveThreshold: true // for images with shaded/ gradient portions
    // singlePass: true
  }
})
  .then(code => {
    console.log(code)
  })
  .catch(err => {
    console.log(err)
  })

Note

• This script does not implement logic to locate/rotate barcode in the given image.
• Make sure the barcode image is the only thing in the image. Otherwise this script will most probably fail.

Contributing

• Each decoder is defined in src directory as a module.
• Tests are defined in the tests directory using Jest.

Contributors

Thanks goes to these wonderful people (emoji key):

Cristian Nitescu 💻

This project follows the all-contributors specification. Contributions of any kind welcome!