
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
GOCR
Tesseract
Prizmo
Onlineocr.net
ABBYY FineReader
TextGrabber
CopyFish
Kofax Omnipage
kdiff3
GOCRBeyond Compare - Beyond Compare allows you to compare files and folders.
Tesseract - Tesseract is an optical character recognition engine for various operating systems
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Prizmo - Prizmo is a scanning application for Mac with Optical Character Recognition (OCR) in over 40 languages with powerful editing capability, text-to-speech, and iCloud support.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Onlineocr.net - Free Online OCR service allows you to convert PDF document to MS Word file, scanned images to editable text formats and extract text from JPEG/TIFF/BMP files