# QRCode Scanner

> Scan and decode QR Code. Internet is not required.

Canonical page: [https://chrome-stats.com/d/qrcode-scanneroffline](https://chrome-stats.com/d/qrcode-scanneroffline)

## Overview

- **ID:** `qrcode-scanneroffline`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Removed
- **Publisher:** laobubu
- **Daily users:** 7,170
- **Weekly downloads:** 159
- **Rating:** 3.94 / 5 (83 ratings)
- **Version:** 1.2.4resigned1
- **Last updated:** 2024-04-25
- **First published:** 2013-08-17
- **Size:** 46 KB
- **Data as of:** 2025-11-16
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/qrcode-scanneroffline/)

## Description

### QRCode Scanner Chrome Extension

QRCode Scanner allows you to scan and decode QR codes directly from any webpage without requiring internet access. This extension emphasizes user privacy by never tracking your usage and operates fully offline, ensuring your data remains secure.

Key features include:
- Offline decoding of QR codes
- Support for decoding non-image QR codes (optional feature)
- Manual image adjustments such as clipping, contrast enhancement using OTSU method, and color inversion
- Auto-close result window for convenience
- Open source code available on GitHub for transparency and customization

Additionally, it supports PDF viewer integration, enabling you to select text and decode QR codes through a right-click context menu. QRCode Scanner is a lightweight, user-friendly tool ideal for users seeking a privacy-first and efficient QR code scanning solution within their browser.

## Permissions and access

### Permissions

- `contextMenus`
- `storage`
- `tabs`
- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension is not longer available in the store

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Users praise the add-on as a simple, lightweight QR reader that reliably decodes codes via a right‑click context menu. Common complaints are that it needs enabling/initial setup after install and has scanning limitations (local/new‑tab images, cropping issues, and some codes requiring online recognition). Overall: effective and minimal, but with usability and capability caveats.

### Pros

- Reliable QR decoding — multiple users report it successfully reads QR codes.
- Simple, no-frills user experience — uses a right‑click "Decode QR" context menu with no extra toolbar clutter.
- Lightweight/minimal extension that doesn’t add UI clutter and is easy to use once enabled.

### Cons

- Requires initial setup/enabling after installation — a couple of users found it tricky to get working at first.
- Limited scanning capabilities — several users reported problems scanning local images or images opened in a new tab, cropping/recognition failures, and that some codes need online recognition.

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Source: [Chrome-Stats](https://chrome-stats.com/d/qrcode-scanneroffline)