AllDup v4.0.42 Updated

billon on 15 Dec 2017
  • 8MB (uncompressed)
  • Released on 14 Dec 2017
  • 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 software can also scan ZIP or RAR archives (with an optional file size limit) and filter file types and/or folders.

System Requirements: 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.
What's new?
  • The location of the AllDup application data will be displayed at the options.
  • The French translation of the user interface has been updated.
  • Various optimizations have been introduced in various sections of AllDup. Various bugs have been fixed.

5 comments on AllDup  The Portable Freeware Collection Latest Entries Feed

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.

Lee 2011-01-08 06:42

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

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?

webfork 2013-02-16 20:12

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


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.


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