Tesseract.js is a javascript library that gets words in almost any language out of images.

The best OCR Engine alternative to PDF OCR is Tesseract, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to PDF OCR and ten of them are OCR Engines so hopefully you can find a suitable replacement. Other interesting OCR Engine alternatives to PDF OCR are ABBYY FineReader PDF, Adobe Scan, (a9t9) Free OCR Software and Nanonets.
Tesseract.js is a javascript library that gets words in almost any language out of images.

Optical recognition software boasting unmatched text accuracy converts scanned documents to editable Word, Excel, or searchable PDFs while preserving layout. Supports 190 languages, simplifies processes with automated tasks, and includes PDF editing tools.




The Adobe Scan scanner app turns your device into a powerful portable scanner that recognizes text automatically (OCR) and allows you to save to multiple file formats including PDF and JPEG.




OCR software and web service to extract text from image files and PDF. The application is available as online OCR web app, OCR API, or simple to install Windows store application.



Nanonets is an LLM based OCR solution that that automates document processing and data extraction workflows. With models that do not rely on pre-defined document templates, Nanonets helps companies automate document-heavy business processes like accounts payable, order...




OwlOCR offers simple optical character recognition of text in PDF files, images or on-screen and converts that to plain text.




GOCR is an OCR (Optical Character Recognition) program, developed under the GNU Public License. It converts scanned images of text back to text files. Joerg Schulenburg started the program, and now leads a team of developers.


SimpleOCR is the popular freeware OCR software with hundreds of thousands of users worldwide. SimpleOCR is also a royalty-free OCR SDK for developers to use in their custom applications.



CuneiForm (OpenOCR) is a text recognition software for printed templates. Manuscripts or PDF-files, the program can not recognize, however, but table structures. The language-model is applicable for 20 languages, and the results can be used as HTML, RTF or ASCII text to save, or...


OCRopus(tm) is a state-of-the-art document analysis and OCR system, featuring pluggable layout analysis, pluggable character recognition, statistical natural language modeling, and multilingual capabilities.
