QR Code Decoder

Select QR code images and quickly decode content, supporting multiple image formats.

QR Code Decoder - Upload QR Code Image

Upload QR Code Image

Drag image here or click to select

Supported formats: PNG, JPG/JPEG, WebP, AVIF, BMP

Maximum file size: 10MB

QR Code Decoder Tool Guide

QR Code Decoder is a free online tool that can quickly identify and decode content from QR code images, supporting PNG, JPG/JPEG, WebP, AVIF, BMP and other image formats. Supports drag and drop selection or click to select images, simple and intuitive operation. Fast decoding speed, high accuracy, can identify various types of QR code content (text, URL, WiFi, email, phone, SMS, etc.). Decode results can be viewed immediately, supports one-click copy to clipboard for easy use. All decoding processes are completed locally in the browser, images are not uploaded to servers, completely protecting your privacy and data security.

Supports multiple image formats, fast decoding speed
Drag and drop or click to select, simple operation
Local decoding, privacy security, one-click copy results

Tool Features

Multi-Format Image Support and Fast Decoding

Supports multiple common image formats including PNG, JPG/JPEG, WebP, AVIF, BMP, etc., meeting QR code image needs from different sources. Supports drag and drop selection and click selection, flexible and convenient operation. Fast decoding speed, high accuracy, can identify various types of QR code content (text, URL links, WiFi connection information, email information, phone numbers, SMS information, etc.). Supports maximum 10MB image files, suitable for QR code recognition needs in various scenarios.

User-Friendly Interface and Interactive Experience

Provides clear select area, supports highlight feedback when dragging and dropping, convenient for users to know where files can be placed. After selection, displays image preview, can intuitively see the QR code image to be decoded. During decoding, displays processing status (Decoding...), provides clear progress feedback. Decode results displayed in clear format, uses monospace font to maintain content format, supports automatic line wrapping for long text. All operations have Toast notification feedback, smooth user experience.

Convenient Result Management and Privacy Protection

Decode results can be viewed immediately, supports one-click copy to clipboard, convenient for using results in other applications. Supports clearing single result or all content, can select new QR code images. All decoding processes completed locally in browser, image data not uploaded to any server, completely protecting your privacy. Decoded text content only exists in browser memory, automatically cleared after refreshing page or closing browser, leaving no traces. Supports identification of various QR code type content, including text, URL, WiFi, email, phone, SMS and other formats.

How to Use

  1. 1

    Select QR Code Image

    In the select area, can select QR code images in two ways: drag and drop selection (drag image file to select area, release mouse when area highlights) or click to select (click select area or "Select Image" button, select QR code image file in file selection dialog). Supports common image formats like PNG, JPG/JPEG, WebP, AVIF, BMP, maximum file size limit of 10MB. After successful selection, image will display in select area for preview. If selected image format is incorrect or file is too large, error notification will be displayed.

  2. 2

    Decode QR Code Content

    After selecting QR code image, click "Decode QR Code" button to start decoding. During decoding, button will display "Decoding..." status, indicating processing in progress. After decoding completes, results will display in "Decode Result" area below. If QR code image is clear and format is correct, decoding will complete quickly (usually within 1 second). If image has no QR code, poor image quality or damaged QR code, corresponding error notifications will be displayed (such as "No QR code found" or "Decode failed"). Decode results will display in original text format, maintaining integrity of original content.

  3. 3

    View and Copy Results

    After successful decoding, can view QR code content in "Decode Result" area. Results displayed in monospace font, supports automatic line wrapping for long text, convenient for reading. If need to use decode results, can click "Copy Result" button to copy content to clipboard, then paste into other applications. If don't need current result, can click "Clear Result" button to clear displayed content. If need to decode new QR code, can click "Remove Image" or "Reselect" button to replace image, or click "Clear" button to clear all content and start over. All operations completed locally in browser, no data uploaded.

Frequently Asked Questions

What image formats are supported?
Supports common image formats like PNG, JPG/JPEG, WebP, AVIF, BMP, basically covering all mainstream image formats. These formats are all standard image file formats with good compatibility. If your QR code image is in another format, can first use image conversion tool to convert to supported format. Maximum file size limit for uploaded images is 10MB, which is sufficient for most QR code images.
Why does decoding fail?
Decoding failure may have several reasons: 1) No QR code in image, uploaded file is not QR code image; 2) Poor QR code image quality, blurry, damaged or incomplete; 3) Image format not supported or file corrupted; 4) QR code pattern too small or too large, beyond recognition range; 5) QR code blocked or partially missing. Recommend using clear, complete QR code images, ensuring QR code pattern is clearly visible without blur or damage. If still fails, can try using other QR code images or check if image format is correct.
Will my image be uploaded?
No, all decoding processes are completed locally in your browser, images are not saved to any server, and not uploaded to network. Image data only processed in current page memory, recognizes QR codes locally in browser. After decoding completes, images and results only exist in browser, can choose to copy results or clear content, but will not automatically upload. After refreshing page or closing browser, all data automatically cleared, leaving no traces. Completely protecting your privacy and data security.

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