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Fast Duplicate File Finder

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  • Date Added:
    Feb. 25, 2015
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Editors' Review


Fast Duplicate File Finder is a free version of a shareware tool. If you've tried duplicate finders before and are still recovering, not to worry: Fast Duplicate File Finder uses advanced algorithms that compare the actual binary content of a wide range of file types, not just name, size, and other attributes that may or may not be accurate indicators of duplicate files. It can search not only for 100 percent duplicates but also for similar files based on a variable level of similarity. As with all duplicate file finders, we recommend checking carefully before you delete anything it finds.

Fast Duplicate File Finder's interface has a familiar layout, with a main window and panels with draggable borders. We clicked Add Folder on the toolbar and selected a folder of digital snapshots, opting to scan subfolders as well. Our selections appeared in the Folders panel, including, surprisingly, the parent folder. We didn't want to scan the parent folder (it's large) so we clicked Remove Folder just below in the Scan options. We selected a 100 percent similar scan, though we also tried the feature that lets you scan for similar files based on a variable percentage of similarity that we selected from a rotary button, a useful feature that takes longer but finds resized and lower-quality copies. We clicked Start Scan, and the program quickly displayed all pairs and groups of duplicates in the main display, including size, directory, and other information, with the duplicates all checked for removal or deletion sorted by date and size of the file. The Preview pane let us see each file for visual verification. We simply checked those files we wanted to remove, unchecked those we didn't, selected a destination folder for the duplicates, and clicked Move Checked Files, though we could just as easily have deleted them. We opened the original and duplicate folders and verified that only duplicates had been moved. Fast Duplicate File Finder also lets users create, save, and return to Projects for regular checks.

The Free version of this program disables some of the Pro version's features, such as the Filters button, and limits some of its capabilities. It did a good job of finding duplicates, though, which is all we were hoping for.

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Publisher's Description

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User Reviews

Results 1–2 of 2

5 stars

"Finally cleaned up a decade of duplicates"

September 16, 2015  |  By g10746445

 |  Version: Fast Duplicate File Finder


When it does the processing, the interface puts all your dupes into groups of duplicates and numbers them, AND THEN LEAVES ONE FILE UNCHECKED based on your filter rules. Then you can move the other files somewhere else, left only with the single ones you want. brilliant. Also, Its very fast. Can handle massive file sets/sizes (mine was well over 50 gigs). I have a very fast machine, so not sure how much the speed is about my machine or the software, but I am pleased. I had over 300K of images so could not do any manual comparison, but if you needed to manually look, there is a visual compare option. You can also select the % of similarity you want as a threshold. I picked 100%.


Maybe could have been clearer about the step by step. the system completes the scan, but then it isn't super obvious that the next step is to press MOVE. Also, that click box called "keep file structure" is confusing, and you might not realize where all your dupes were sent if you have it clicked.


This program is a lifesaver. I bought the pro version after I screwed around with severall cheap and freeware things...this one it is worth every penny.

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5 stars

"So cool that they provide this flawless tool for free"

April 05, 2015  |  By xyeaxl

 |  Version: Fast Duplicate File Finder


Very professional and accurate as all their duplicate finders.


Similar content search is only in PRO version, but search for similar file names if free.


More than a nice tool for its price - FREE ;)

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Results 1–2 of 2

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Full Specifications

What's new in version


  • Extended date options in Auto Check, Filter, Quick Check and Exclude from Auto Check, so that created, modified or last accessed file date can now be used.
  • Added separate columns Created, Modified and Accessed to show each individual file date.
  • Created, Modified and Accessed file dates are saved to the exported projects.
  • Fixed - similarity slider can be now increased to 100% using the mouse.
  • Fixed order of duplicate groups - preserved on load/save
  • Fixed loading projects where decimal separator is different from the current locale decimal separator.
  • Fixed moving files from UNC paths like \\Server\Path\
Publisher MindGems
Publisher web site
Release Date February 26, 2015
Date Added February 25, 2015
Category Utilities & Operating Systems
Subcategory File Management
Operating Systems
Operating Systems Windows 98/Me/NT/2000/XP/2003/Vista/Server 2008/7/8
Additional Requirements None
Download Information
File Size 2.63MB
File Name FastDuplicateFileFinder.exe
Total Downloads 66,990
Downloads Last Week 300
License Model Free
Limitations Not available
Price Free

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