* araxis
* bc
* bc3
* codecompare
* deltawalker
* diffmerge
* diffuse
* ecmerge
* emerge
* examdiff
* guiffy
* gvimdiff
* gvimdiff2
* gvimdiff3
* kdiff3
* kompare
* meld
* opendiff
* p4merge
* tkdiff
* vimdiff
* vimdiff2
* vimdiff3
* winmerge
* xxdiff