
Foldermatch
FolderMatch is a program that compares directories and files, showing the differences clearly. -Easily, quickly, and reliably compare and synchronize two folders, two drives, or two computers.
Duplicate Files Finder is an application which searches for duplicate files (files which have the same content, but not necessarily the same name) and lets the user...
Duplicate Files Finder is an application which searches for duplicate files (files which have the same content, but not necessarily the same name) and lets the user remove duplicate files, either by deleting them or by creating links. The search is very fast compared to other similiar programs which use hashing algorithms (see description of the Duplicate Files Finder algorithm).
portable Discontinued file-deduplication