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This package was approved as a trusted package on 2/22/2018.

AllDup is a freeware tool for searching and removing file duplicates on your computer. The fast search algorithm find duplicates of any file type, e. g. text, pictures, music or movies. The powerful search engine enables you to find duplicates with a combination of the following criteria: File Name, File Extension, File Size, File Content, Last Modified Date, Create Date, File Attributes and Hard Links


  • Entire folders or individual files can be excluded from the search by masks or size conditions
  • Save and restore the search result for continue working later
  • Search for duplicates of digital photo files
  • Search for hard links
  • Many flexible options helps you to select unnecessary duplicates automatically
  • Search is performed in multiple specified folders, drives, media storages, CD/DVDs...
  • Create shortcuts or hardlinks to the last original file
  • Ignore the ID3 tags of MP3 files
  • Search for duplicates of music and video files
  • Find duplicates with a combination of the following criteria: file content, file name, file extension, file dates and file attributes!
  • For your safety all files that have to be deleted can be moved to the Recycle Bin or a separate backup folder
  • Search for duplicates of executable and any other files
  • List non-duplicate files
  • Export the search result to TXT or CSV file
  • Detailed log file about all actions
  • The built-in file viewer allows you to preview many different file formats and analyze the content of the file before deciding what to do with it
  • The unnecessary duplicates can be deleted permanently or copied/moved to a folder of your choice
  • Search through an unlimited number of files and folders
  • Convenient search result list
  • Fast search algorithm

To install AllDup, run the following command from the command line or from PowerShell:

C:\> choco install alldup

To upgrade AllDup, run the following command from the command line or from PowerShell:

C:\> choco upgrade alldup


  • tools\chocolateyInstall.ps1 Show
    $packageName  = 'alldup'
    $url          = ''
    $checksum     = 'e68286cb809d5c09dbbe7cc367c27948914e3d8f94af49a62a0a62aba8907ffa'
    $checksumType = 'sha256'
    $packageArgs  = @{
      packageName    = $packageName
      fileType       = 'exe'
      softwareName   = 'AllDup*'
      checksum       = $checksum
      checksumType   = $checksumType
      url            = $url
      silentArgs     = '/VERYSILENT'
      validExitCodes = @(0)
    Install-ChocolateyPackage @packageArgs

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.


This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • Michael Thummerer Software Design


Michael Thummerer Software Design


Release Notes

Version History

Version Downloads Last updated Status
AllDup 4.0.44 819 Tuesday, December 26, 2017 approved
AllDup 4.0.42 144 Thursday, December 14, 2017 approved
AllDup 4.0.40 268 Wednesday, October 11, 2017 approved
AllDup 4.0.35 152 Thursday, September 28, 2017 approved
AllDup 4.0.32 271 Saturday, July 1, 2017 approved
AllDup 4.0.28 167 Thursday, June 15, 2017 approved
AllDup 4.0.23 209 Thursday, May 11, 2017 approved
AllDup 4.0.20 206 Monday, April 10, 2017 approved
AllDup 4.0.18 202 Sunday, February 26, 2017 approved
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Discussion for the AllDup Package

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  • This discussion is only about AllDup and the AllDup package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
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  • Tell us what you love about the package or AllDup, or tell us what needs improvement.
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