\n\tWinMerge is an open source package for Windows that can find duplicate files and perform merge and comparison of various text file types. (The upcoming version 3 will work on both Windows and Linux platforms)
\n\tDoubleKiller offers powerful comparison features, including hash comparison. It also lets you compare a small number of “fresh” files against a collection of “known” files — a big help in a team or collaborative environment.
\n\tDoubleKiller is available as both a free version and a paid version. The paid version is substantially more useful than the free version.
\n\tEasy Duplicate Finder is indeed easy to use, but it also includes some advanced duplicate detection options, like MP3 tag and JPEG EXIF comparison. It can even hook into Outlook to detect duplicate emails.
\n\tEasy Duplicate Finder is free with a restricted license (which can be upgraded). But beware: It will look to add browser toolbars when you install it.
\n\tDespite its name, dupeGuru Music Edition is not just for comparing music files. It adds the music functionality on top of a robust duplicate finding application. Using a smart filename comparison algorithm, dupeGuru Music Edition finds duplicates even when the files have different names.
\n\tdupeGuru runs on Windows, OS X, and Linux, and it follows a “fairware” pricing model.
\n\tDuplicate Images Finder is an open source tool that compares image files and detects duplicates based on image similarity. The matching can take quite some time, but the comparisons are much more difficult than those performed by the other apps on this list. This is an excellent app for someone who takes a ton of pictures and wants an easy way to zero in on specific images.
I am an all purpose IT person. If there's a generic job title in IT, I've probably had it, most likely more than once. Programmer, systems administrator, DBA, PC tech/repair, Help Desk, webmaster, web designer, web developer, applications developer, network engineering. Somehow I have managed to get my thumb stuck in each one of those pies!
