# LazarSoft/jsqrcode

Javascript QRCode scanner

Repository: https://github.com/LazarSoft/jsqrcode
Canonical: https://ross.abutalabs.com/products/jsqrcode
Homepage: http://www.webqr.com
Language: JavaScript
License: Apache-2.0
License Family: permissive
Last push: 2023-08-17T14:32:46+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5466, "days_push": 1112, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4012, forks 1146 (observed 2026-08-28T04:08:32.336739+00:00)

## What it is
A JavaScript port of the ZXing QR code scanner that decodes QR codes from images or canvas in HTML5-enabled browsers. It supports webcam-based decoding via getUserMedia/WebRTC.

## Use cases
- scan qr codes in the browser
- decode qr code from an image in javascript
- read qr codes with webcam using webrtc
- parse qr code from canvas element
- add qr code scanning to a web app without a server

## When to choose
- you need pure client-side QR decoding in JavaScript
- you want to decode QR codes from images, data URLs, or canvas
- you need webcam-based QR scanning in the browser

## When to avoid
- you need to scan other barcode formats like 1D barcodes or Data Matrix
- you need a maintained library with active development and modern packaging
- you need high-performance scanning of low-quality or damaged codes

## Facets
- artifact type: library
- maturity: maintenance
- function: computer-vision, image-processing, parser
- domain: computer-vision, web-development, browser-extensions
- platform: browser
- tags: qr-code, barcode-scanning, zxing-port, html5, webrtc, camera, javascript, nodejs

## Member repositories
- LazarSoft/jsqrcode (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:32.336739+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:24:00.638553+00:00, confidence not recorded.
  - readme: https://github.com/LazarSoft/jsqrcode (fetched 2026-08-28T04:08:32.336739+00:00, sha 1a5cd9578a3a)
  - homepage: http://www.webqr.com (fetched 2026-08-29T09:17:17.550259+00:00, sha 19e4c79bdd39)
  - site_page: https://webqr.com/about.html (fetched 2026-08-29T09:17:17.559157+00:00, sha ae74a9a1c650)
- Data as of 2026-08-30T08:39:29.467469+00:00.