OCR - Image Reader
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Item media 2 screenshot
Item video thumbnail
Item video thumbnail
Item media 2 screenshot


A powerful optical character recognition (OCR) extension to capture and convert images to text

This extension adds a toolbar button to your browser to perform OCR. When this action button is pressed, it allows the user to select a region in the currently active window. The extension captures the area and tries to recognize text inside this region using the internal powerful OCR engine (Tesseract engine). This extension uses the "tesseract.js" library that supports more than 100 languages, automatic text orientation, and script detection. This extension loads the JS library on the page and removes it when you are done. This way, there is no long-term resource usage. Notes: 1. On the first run, the extension might take a few minutes to fetch the training data from the internet. Since this resource is cached, all subsequent calls are going to be fast. 2. Optical character recognition (OCR) is slow, so this extension displays a progress bar for each detection module. 3. This extension does the OCR process offline. There is no server-side interaction. It only fetches the language training database once. 4. This tool can be used to extract the text content out of images, PDF documents, Powerpoint slides, or extract the content of a web page when user-section is forbidden. 5. If the text extraction confidence is low, the extension inverts the image and retries (particularly useful on the dark theme) 6. If the text extraction is not accurate, you can modify the image and drop it into the interface to retry. Change Logs: Version 0.2.4: Supports browser-level page zooming and OS-level screen zooming Adds image language detection (still beta) (slow operation)

3.9 out of 5177 ratings

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Ronald BremerJun 9, 2024

Does great work on webpages I wonder if it could be adapted to do OCR on pdfs that open in the browser

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alaa MahmoudJun 3, 2024


1 person found this review to be helpful
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Huỳnh LamMay 8, 2024

works perfectly! detect Chinese characters very well even some English words when choosing Chinese language. Convenient <3


  • Version
  • Updated
    March 7, 2024
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  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes


For help with questions, suggestions, or problems, visit the developer's support site

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