About Free Online OCR Text Scanner
Extract editable, copyable text from scanned PDF documents, photographs, book pages, receipts, and screenshots with high-accuracy Optical Character Recognition (OCR). Looking for a free iLovePDF OCR alternative that works without cloud uploads? Powered by Tesseract.js running inside a WebAssembly browser worker, PDFDock performs deep neural network character recognition directly on your machine. You can copy extracted text to your clipboard with a single click or download it as a plain text (.txt) file. Because OCR execution runs entirely in your local browser sandbox, confidential legal discovery papers, receipts, medical records, and ID cards are never uploaded to any remote server.
How to Free Online OCR Text Scanner
- Upload a scanned PDF document or an image file (PNG, JPG, WebP).
- The browser-based WebAssembly OCR engine processes document pages locally.
- View real-time recognition progress as the neural network decodes text glyphs.
- Copy the recognized text to your clipboard or click 'Download' to save as a .txt document.
Frequently Asked Questions
Q.What document and image formats does the OCR scanner support?▼
PDFDock supports multi-page PDF documents as well as PNG, JPG, JPEG, and WebP image formats.
Q.How accurate is the browser-based OCR?▼
PDFDock uses Tesseract OCR compiled to WebAssembly, one of the most mature and accurate open-source OCR engines in the world. Accuracy exceeds 98% on clean 200–300 DPI scans.
Q.Can I copy the recognized text directly?▼
Yes. Extracted text is presented in an interactive preview box where you can copy the entire content or specific paragraphs with one click.
OCR Text Scanner — PDFDock Advantages
Extract text locally with zero privacy compromise.
| Feature | PDFDock | Others |
|---|---|---|
| Local WASM Neural Network | Tesseract.js in WebAssembly | Third-party cloud OCR APIs |
| Privacy & Identity Safety | Zero data transmitted | Images stored in cloud databases |
| Multi-Format Support | PDF, PNG, JPG, WebP | Often image-only |
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Optical character recognition runs entirely in your browser via Tesseract.js WebAssembly.PDFDock operates 100% offline after the initial page load. We have no backend servers, no database, and no file storage. Your documents are processed entirely in your browser's memory and are never transmitted over the network. This makes PDFDock inherently compliant with GDPR, CCPA, HIPAA, and other global privacy regulations.