GUIs and Other Projects using Tesseract OCR

1. GUIs

Name Linux Mac Windows License Description
gImageReader X   X GPL v3 A graphical GTK frontend to tesseract-ocr
TesseractStudio.Net     X Proprietary A graphical interface to tesseract 4.0
VietOCR X X X Apache 2.0 A GUI frontend for Tesseract OCR engine. Supports optical character recognition for Vietnamese and other languages supported by Tesseract
NeOCR     X Freeware A GUI frontend for Tesseract 4.0 OCR engine.
Free-Ocr-Windows-Desktop     X GNU AGPL v3 Free OCR application for the Windows Desktop - Essentially a graphical user interface (GUI) for the Tesseract OCR engine. The application also includes support for reading and scanned PDF files
YAGF X     GPL v3 A graphical front-end for cuneiform and tesseract
OCR2Text X X X MIT CLI tool for batch-processing PDF to TXT
OCRFeeder X     GPL v3 OCRFeeder is a document layout analysis and optical character recognition system
Lector X   X GPL v2 A graphical ocr solution for GNU/Linux based on Python, Qt4 and Tesseract OCR
Tesseract-OCR QT4 gui X     Apache 2.0 Tesseract-OCR QT4 gui is a simple GUI for tesseract
Lime OCR     X GPL v3 A simple, free OCR software for Windows using tesseract-ocr engine
Ocrivist X     GPL v3 Ocrivist is a utility which makes it possible to scan and OCR books and other printed documents to PDF or Djvu format
Tesseract-GUI X     GPL v2 Tessract-GUI is not a front-end for tesseract-ocr, it is just a graphical way to use it with simple image manipulation through ImageMagick
QTesseract X     LGPL v3 QT GUI for the Tesseract OCR
dpScreenOCR X   X zlib Program to recognize text on screen
pmOCR X     BSD Batch OCR tool, also file monitor event OCR with tesseract
tesseract4java X X X GPLv3 A cross-platform GUI for training and running Tesseract with advanced features like batch recognition and accuracy evaluation
Linux-Intelligent-OCR-Solution(lios) X     GPLv3 A GUI for scanning, running and training Tesseract with total accessibility for visually impaired and advanced features like Scanner Brightness optimizer, Text-Cleaner, etc
SunnyPage OCR     X Proprietary A GUI frontend for Tesseract OCR engine with automatic adjustment of image brightness, image processing and PDF support.
PDF OCR X   X X Proprietary PDF OCR is a simple drag-and-drop utility for Mac OS X and Windows, that converts your PDFs and images into text documents or searchable PDF files
TaxWorkFlow     X Proprietary TaxWorkFlow is an accounting practice management application that includes GUI frontend for Tesseract OCR engine. The app supports AVX and allows to create OCR’ed PDF files of selected resolution and compression from PDF files and 100+ image file formats.
AmhOCR     X GPLv3 Tesseract Powered Windows Desktop OCR Application With Multiple Pre/Post Processing GUI

2. Online OCR services

3. Mobile

4. Others (Utilities, Tools, Command-Line Interfaces [CLI], etc)

A. PDF to Searchable PDF tools

(ie: any tool which can also handle a non-searchable PDF as an input):

  1. OCRmyPDF - Adds OCR text layer to scanned PDF files and images, allowing them to be searched. Processes pages in parallel on multi-core CPUs. Keeps exact resolution of original embedded images without recompressing JPEGs, when possible. Includes image several preprocessing options, detailed documentation, and support for many exotic PDFs.
  2. pdf2pdfocr is a tool to OCR a PDF (or supported images) and add a text layer in the original file making it a searchable PDF. It is a python script that uses tesseract and other open source tools. Linux, macOS and Windows supported.
  3. pdf2searchablepdf - a tool which allows converting any non-searchable PDF, OR any entire directory of images, to a searchable PDF

B. Others:

  1. ocr-fileformat - Validate and transform between OCR file formats (hOCR, ALTO, PAGE, FineReader)
  2. Tess4J - A Java JNA wrapper for Tesseract OCR API.
  3. Traineddata inspector - to inspect some of the internals of traineddata files
  4. TopOCR - high Quality OCR for Cameras with tesseract-ocr support (paid product)
  5. Simple OCR Web Server using python, flask, tesseract-ocr, and leptonica
  6. Display OCR is OpenCV-Python + python-tesseract real-time image preprocess and OCR of 7 segments font.
  7. OpenOCR makes it simple to host your own OCR REST API.
  8. is An implementation of RESTful web service for tesseract-OCR using tornado
  9. RasterEdge .NET Image SDK - OCR Recognition is robust, high-performance recognition application of royalty-free distribution for desktop or server applications.
  10. DevScope OCR SDK is an Optical Character Recognition toolkit engine based on Tesseract OCR v3 that allows to develop applications using Microsoft .NET framework
  11. Paperwork - using OCR to grep dead trees the easy way (requires pyocr)
  12. Aletheia - An Advanced Document Layout and Text Ground-Truthing System for Production Environments
  13. gscan2pdf a GUI to produce PDFs or DjVus from scanned documents
  14. Audiveris is an open-source Optical Music Recognition software which processes the image of a music sheet to automatically provide symbolic music information in MusicXML standard.
  15. Ocrivist is a utility which makes it possible to scan and OCR books and other printed documents to PDF or Djvu format.
  16. thu-ipv6-login a python script for IPv6 authentication in Tsinghua University with support for OCR of authcode
  17. Wolfram Mathematica 9.0 use tesseract for recognizing text
  18. node-dv is a node.js library for processing and understanding scanned documents
  19. hocr-tools - python tools for manipulating and evaluating the hOCR format for representing multi-lingual OCR results by embedding them into HTML. They include hocr-pdf tool for creating searchable pdf.
  20. PyPDFOCR - Tesseract-OCR based PDF filing
  21. ChronoScan is a complete suite for document Scanning & Data Entry
  22. speedy-ocr utility to simplify scanning and OCR focus to help blind and visually impaired community. It is part of Vinux project.
  23. Project VIRAL Varico Invoice Recognition with Assisted Learning
  24. Bindery: A simple GUI for binding post processed scanned pages into digital documents
  25. Clarify: Clarify helps you OCR ‘image-only’ PDFs. Your input is a PDF that you normally cannot extract text from. The output is text. Clarify is a python module that wraps up tesseract-ocr, xpdf and netpbm. Requirements: python, tesseract-ocr, xpdf, netpbm
  26. hOcr2Pdf.NET: hOcr2Pdf.NET is a library that programmers can use to create highly compressed, searchable pdf’s for applications. Requirements: .NET 2.0 or higher, Tesseract 3.0, JBig2.exe
  27. PDFBeads: convert scanned images to a single searchable PDF file based on hOCR files. Requirements: ruby, RMagick, hpricot
  28. ExactImage/hocr2pdf: creates a Searchable PDF from hOCR input. Requirements: libagg
  29. HocrConverter: creates PDFs and plain text from hOCR documents. Requirements: python, reportlab
  30. java source for very basic hOCR to PDF converter. Compiled version can be found at project modi2hocr. Requirements: java, jericho, iText2
  31. hOcr2Pdf.NET: is a .NET library to convert .hocr html produced by Tesseract or Cuneiform into searchable pdfs using HtmlAgilityPack and iTextSharp. Requirements: C#.
  32. Tally-Ho: Tally-Ho is a screen reader intended for sites like google books
  33. Mayan EDMS: Document management system with tesseract as its base
  34. Olena: a generic and efficient image processing platform (tesseract is used in its part called scribo)
  35. ocrodjvu is a wrapper for OCR systems, that allows you to perform OCR on DjVu files
  36. PaRADIIT (Pattern Redundancy Analysis for Document Image Indexation & Transcription) is a project initiated and sponsored by 2 successive Google DH awards. It aims to turn ancient books, especially from the Renaissance, into accessible digital libraries.
  37. The ISRI Analytic Tools consist of 17 tools for measuring the performance of and experimenting with OCR output.
  38. Indic Messenger A Facebook chat bot which can OCR images containing Indian/English text and transliterate it to other Indian scripts.
  39. LibreOCR A LibreOffice extension which can convert an image to OCT and open in the Writer application.

For more information about IMPACT project see discussion in tesseract forum.