Recuva - Accidentally deleted an important file? Lost files after a computer crash?
JpegDigger - JpegDigger is designed for recovering deleted photos from memory cards but it works on hard drives...
PhotoRec - Jun 4, 2016 - PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from hard disks, CD-ROMs, and lost pictures (thus the Photo Recovery name) from digital camera memory.
myPhoto Recovery - myPhoto Recovery is a utility for recovery of lost and deleted photos.
recoverjpeg - Utility to recover errors from digital camera memory cards and other devices. Command line only.
AppleXsoft CF Card Recovery - CF Card Recovery is easy to use data recovery software to rescue photos, pictures, video and other files from CF Card on Mac and Windows.