AllDup v4.5.60 Updated

Andrew Lee on 28 Feb 2024
  • 8MB (uncompressed)
  • Released on 19 Feb 2024
  • Suggested by guinness

AllDup removes duplicate files from one or multiple directories and includes a preview function using Windows own tools (IE, MediaPlayer and WordPad). Can find duplicates by file name, file extension, file content, file dates, file attributes. The program can also help identify and remove music and or image files that are not only slightly different.

Multiple files, directories, and drives can all be scanned, as well as ZIP or RAR archives (with an optional file size limit), along with filters for file types and/or folders.

Runs on:WinXP / Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes
License: Freeware
How to extract: Download the "Portable Edition" ZIP package and extract to a folder of your choice. Launch AllDupPortable.exe.

Optionally, delete unnecessary language files.
Similar/alternative apps:
What's new? See:

7 comments on AllDup  The Portable Freeware Collection Latest Entries Feed

dmiranda 2024-03-03 16:46

To my understanding, the last compatible version for XP is


Special 2018-12-23 20:30

It seems that with v4.2.0 it now phone home no matter what on every startup, 4.1.8 didn't do this and yes, the option "Check for updates on startup" is disabled.


MIKLO 2017-10-12 15:04

Working as "freeware" for me :) very nice software does all I want and more thanks for job well done.


webfork 2013-02-16 20:12

@Prime: Unknown. Anyway, just rechecked the status and the current license info is correct.


Onesimus Prime 2011-01-09 02:18

At least three places on their site, they call it freeware, including the phrase "Freeware for private and commercial use" (
On the other hand AllSync, from the same company, is time-limited shareware--perhaps Lee got the two confused?

Lee 2011-01-08 06:42

It's not freeware. It's a time-limited demo.

webfork 2010-08-28 19:42

Not as simple and clean as other duplicate checkers so I was a little intimidated. But the file preview option really grabbed me: this is a powerful way to track down duplicate files.

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