How to Use Offline OCR Scanner to Extract Text from Scanned Docs
Category: Productivity
How to Use Offline OCR Scanner to Extract Text from Scanned Docs
Need to digitize a printed receipt, extract text from a screenshot, or copy notes from a photo? Doing this manually takes too long, but standard online OCR platforms present huge privacy leaks by processing your images in cloud databases.
In this guide, we will show you how to perform high-accuracy Optical Character Recognition (OCR) completely offline in your browser.
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The Tech Behind Offline OCR: Tesseract.js
DomoDomo's OCR Scanner uses Tesseract.js, a pure JavaScript port of the famous Tesseract OCR engine.
- Local Web Workers: Tesseract.js loads the language models directly into your browser's Web Workers.
- Local Computation: Your CPU executes the character recognition matrices locally. No pixels are ever uploaded over the web.
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🛠️ Step-by-Step OCR Guide
1. Open the [OCR Scanner Tool](https://domodomo.site/tool/ocr-scanner).
2. Choose your document language (English is loaded by default, but 100+ languages are supported).
3. Drag and drop your image file (PNG, JPG, or PDF page).
4. Click Run OCR.
5. Watch the real-time progress indicator. Once complete, your extracted text is loaded into an editable layout container.
6. Click Copy Text or download as a text file.