- ImageMagick
C - kraken
Python - ocrobin
Python - ocrodeg
Python - ocropy
Python - ocropy2
Python - ocrorot
Python - prima-image-lib
C++ - unpaper
C
- clstm
C++ - jochre
Java - kraken
Python - ocroline
Python - ocropy
Python - ocropy2
Python - ocular
Java - tesseract
C++
- ochre
Python - ocrd-postcorrection
Java - Profiler
C++ - ticcltools
C++
- alto-editor
Ruby - archiscribe
Go - hocr-proofreader
JavaScript - ocr-gt-tools
Perl - PoCoTo
Java
- core
Python - interoperability-framework
Java - ocropus3
PyTorch
- gamera
C++ - glyph-miner
C++ - GroundTruthAligner
D - inventory-extraction
C++ - ocr-fileformat
Bash - ocromore
Python
- archiscribe
TXT - CIS OCR
TXT - DIVA-HisDB
PAGE - EarlyPrintedBooks
TXT - EEBO-TCP
XML - ECCO-TCP
XML - eMOP-TCP
TXT - Evans-TCP
XML - IMPACT-KB
PAGE - IMPACT-PSNC
PAGE - OCR-D
PAGE