granite-qrcode-scanner | Vaadin

A webcomponent to scan a QR Code

[ This description is mirrored from at on 2019-05-22 ]

Published on


A webcomponent to scan a QR Codes, using a modified version of Lazersoft's jsqrcode library, to allow jsqrcode to deal with ShadowDOM

Built on lit-element

The old Polymer 2.x-1.x version is available on the polymer-hybrid branch.

Doc & demo

Usage example

<granite-qrcode-scanner active continuous></granite-qrcode-scanner>


Install the component using npm:

$ npm i @granite-elements/granite-qrcode-scanner

Once installed, import it in your application:

import '@granite-elements/granite-qrcode-scanner/granite-qrcode-scanner.js';

Running demos and tests in browser

  1. Fork the granite-qrcode-scanner repository and clone it locally.

  2. Make sure you have npm and the Polymer CLI installed.

  3. When in the granite-qrcode-scanner directory, run npm install to install dependencies.

  4. Serve the project using Polyumer CLI:

    polymer serve --npm

  5. Open the demo in the browser


  1. Fork it!
  2. Create your feature branch: git checkout -b my-new-feature
  3. Commit your changes: git commit -m 'Add some feature'
  4. Push to the branch: git push origin my-new-feature
  5. Submit a pull request :D


MIT License


Link to this version
ImportedReleased 07 March 2018Other
Framework Support
Polymer 2.0+
Also supported:
Polymer 1 (1.3.5)
Browser Compatibility
Install with
Release notes - Version 2.0.1



  • LostInBrittany/granite-qrcode-decoder#^1.0.2
  • LostInBrittany/granite-app-media-periodic-image-capture#^1.0.1
  • PolymerElements/paper-fab#^2.0.0
  • PolymerElements/iron-iconset-svg#^2.2.0
  • PolymerElements/paper-ripple#^2.1.0