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.
Category: | |
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: | AntiDupl.net |
What's new? | See: http://alldup.de/alldup_help/alldup_version.php |
Latest comments |
MIKLO
on 2017-10-12 15:04
Working as "freeware" for me :) very nice software does all I want and more thanks for job well done.
Special
on 2018-12-23 20:30
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7›
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. |
Awesome Duplicate Photo Finder is a powerful tool that helps you to find and remove duplicate photos or similar pictures on your PC. It is able to compare pictures that were resized or with corrected colors (e.g. contrast modified, black and white photos etc.).
Category: | |
Runs on: | Win2K / WinXP / Vista / Win7 / Win8 / Win10 |
Writes settings to: | Application folder |
Stealth: ? | Yes |
Unicode support: | Yes |
License: | Freeware |
How to extract: | Download the ZIP package and extract to a folder of your choice. Launch AwesomePhotoFinder.exe. |
Similar/alternative apps: | Dup Detector |
What's new? | See: https://www.duplicate-finder.com/photo-features.html#whatsnew |
Latest comments |
webfork
on 2015-11-29 20:56
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5›
Absolutely excellent program that saved a ton of room on my hard drive, clearing out duplicates as well as several multiple-size images from an earlier effort to compress some really big photos. The best part is how it automatically sees two photos that are already very similar and helps you pick the better one to archive. There were only one or two false-positives in a batch of hundreds (a concert picture somehow got paired with a painting of Mozart). |
AntiDupl.NET is a tool to search for and delete identical or very similar pictures. Includes a customizable difference threshold and can highlight image differences, supporting JPEG, GIF, TIFF, BMP, PNG, EMF, WMF, EXIF, ICON, JP2, PSD, DDS, TGA and WEBP files.
The program can also detect image defects.
Category: | |
Runs on: | Win2K / WinXP / Vista / Win7 / Win8 / Win10 |
Writes settings to: | Application folder |
Dependencies: | Microsoft.NET Framework 2.0 |
Unicode support: | Yes |
License: | MIT License |
How to extract: | Download the self-extracting archive to a folder of your choice. Launch AntiDupl.NET.exe. |
Similar/alternative apps: | ImgSearch |
What's new? |
See: https://ermig1979.github.io/AntiDupl/english/index.html?page=news.html |
Latest comments |
webfork
on 2017-03-21 02:08
I thought my similar image analysis program of choice was more than adequate but this program is remarkably good. The program works really fast on a TON of images and the change detection is very useful.
__philippe
on 2017-03-21 12:12
@webfork
__philippe
on 2018-01-23 07:38
Add comment
3›
Russian users are reporting some issues with AntiDupl v2.3.9 |
CloneSpy can help you free up hard drive space by detecting and removing duplicate files with exactly the same contents regardless of their name, date, time, or location. Also, CloneSpy is able to find files that are not exactly identical, but have the same file name. This can be an issue for example if you have different versions of a file and you want to find and remove the older versions. CloneSpy is able to find zero-byte files.
Note: The installer now allows you to choose between a 32 or 64-bit version of CloneSpy.
Category: | |
Runs on: | WinXP / Vista / Win7 / Win8 / Win10 |
Writes settings to: | Application Folder |
Stealth: ? | Yes |
Unicode support: | Yes |
License: | Freeware |
How to extract: | Download the installer and select 'portable version' at installation type. Launch CloneSpy.exe. |
Similar/alternative apps: | DoubleKiller |
What's new? |
Added:
|
Latest comments |
MarkyMark
on 2015-04-09 15:36
A lot of people here trying to delete multiples of the same image - I just wanted to give a shout out to Dup Detector, which is a great piece of software that does exactly that.
I am Baas
on 2015-04-09 16:44
@MarkyMark Dup Detector is in the database at http://www.portablefreeware.com/index.php?id=225
MarkyMark
on 2015-04-10 02:08
See all
24›
Oh awesome. Well, it's still great software - it does one thing & does it very well. |
Bytessence DuplicateFinder (BDF) detects all the cloned files that you might have on your computer. These files, in addition to taking up valuable space, can increase antivirus scan time, slow defragmentation and searches, and make it more difficult to organize your files.
The program employs optimized detection system and file filters to reduce scanning time. Detected files can be removed in no time with the help of the automatic file selector and the predefined set of actions (copying, moving or recycling).
Note: Website is offline, switched to Archive.org
Category: | |
Runs on: | WinXP / Vista / Win7 / Win8 |
Writes settings to: | Application folder |
Stealth: ? | Yes |
Unicode support: | Yes |
License: | Freeware |
How to extract: | Download the Portable ZIP package and extract to a folder of your choice. Launch BDF.exe. |
Similar/alternative apps: | DoubleKiller |
Latest comments |
bytessence
on 2011-10-08 09:43
Hello! I am the developer behind BDF. I just released a new version of the program (1.3) which fixes some annoying bugs.
webfork
on 2013-02-03 21:32
Might be my new favorite duplicate finding program on the site next to DoubleKiller http://www.portablefreeware.com/index.php?id=136 (and certainly much easier to use).
webfork
on 2013-05-10 01:51
See all
6›
Getting intermittent errors with the website. Softpedia link: http://www.softpedia.com/get/PORTABLE-SOFTWARE/System/File-management/Bytessence-DuplicateFinder-Portable.shtml |
Dup Detector finds duplicate or near-duplicate images by comparing image pixel data. As large image collections can over time pull in duplicates with different file sizes and different names, this program helps track those down and save disk space.
Note: main website down, linking to archive.org
Category: | |
Runs on: | WinXP / Vista / Win7 / Win8 |
Writes settings to: | Windows registry. It was a tough call, but I finally decided to accepted it as portable because it is probably not something that you will run that regularly. And when you run the program on a different machine, a few parameters will need to be adjusted anyway. |
Stealth: ? | No. A yaP configuration file to make Dup Detector portable and stealth is available at http://rolandtoth.hu/yaP/#examples |
License: | Freeware |
How to extract: |
|
Similar/alternative apps: | Awesome Duplicate Photo Finder, ImgSearch |
What's new? |
V3.30 3/2/11
V3.301 4/17/11
V3.302 7/8/11
|
Latest comments |
Andrew Lee
on 2006-07-26 23:55
Since the license says it is freely distributable, I have added a direct download link for those of you who still want it.
AlephX
on 2007-02-04 23:45
See all
4›
I had a DL error... anyway it´s possible to find it even at |
ImgSearch lets you search and delete similar images across multiple folders. The program even allows checking for similarity from previous image analysis. Files are removed to the Recycle Bin and can be restored in case of a mistake.
Supports analysis of JPG, GIF, BMP, ICO, CUR, WMF, EMF, PNG, PCX image formats.
Category: | |
Runs on: | Win98 / WinME / WinNT / Win2K / WinXP / Vista / Win7 / Win8 / Win10 |
Writes settings to: | None |
Stealth: ? | Yes |
Unicode support: | No |
License: | Freeware |
How to extract: | Download the ZIP package and extract to a folder of your choice. Launch ImgSearch.exe. |
Similar/alternative apps: | AntiDupl.NET |
Latest comments |
__philippe
on 2016-03-01 16:35
Worthy alternative to ImgSearch (which has not been updated since March 2007) :
spicydog
on 2018-01-24 02:19
Download link (and apparently website) seem to be broken.
webfork
on 2018-01-24 20:37
See all
8›
@spicydog: thanks for that -- billon pointed it to archive.org (thanks billon) |
Simple Duplicate Finder helps track down similar files either to delete extras and save space or to compare versions. While most duplicate-searching programs are looking for exact copies, SDF uses a Percentage Search, allowing you to adjust the percentage difference required for a file to be considered a duplicate. Once scanned, the program will display the number of bytes which differ as well as the specific percentage match between files.
This is useful for example with metadata: when Windows Image Import tool downloads pictures from your digital camera, additional XML data is inserted into the images and video files, including a timestamp of when the image was downloaded to the computer. Although the image is identical in every way to its original, the file will appear as unique. SDF can detect these files and help remove them.
Note: main site appears to be down, switched to archive.org
Category: | |
Runs on: | WinXP / Vista / Win7 / Win8 |
Writes settings to: | None |
Stealth: ? | Yes |
License: | Freeware |
How to extract: | Download the ZIP package and extract to a folder of your choice. Launch DupFinder.exe. |
What's new? |
----Version 1.0.0.0---- Initial Release ----Version 1.1.0.0---- Added percentage match ability, this superceeds smart jpeg search feature. Added Extension filter to search only for specific file types. Bugfix, empty directory search could cause previous version to hang. Updated program icon to be compatable with olders versions of windows. ----Version 1.2.0.0---- Code optimization for increased speed. Added ability to compare files which sizes are not identical, but within percentage match. Total progress now still displayed during a large file compare. ----Version 1.2.0.1---- Fixed a sort problem where text could be incorrect for an item ----Version 1.2.0.2---- Increased sort speed ----Version 1.2.0.3---- Renamed program to "Simple Duplicate Finder" since someone stole my other program name |
Latest comments |
__philippe
on 2019-01-13 08:29
See all
24›
Simple Duplicate Finder v1.2.0.3 - link date 20-FEB-2012 |
Anti-Twin searches for duplicate or similar files on your hard disk drive. All similar or identical files that were found can either be sent to the recycle bin or directly deleted. Supports comparing the entire binary content of the files, searching for identical or similar file names, and pixel-based image comparison, e.g. search for similar pictures.
Category: | |
Runs on: | Win98 / WinME / WinNT / Win2K / WinXP / Vista / Win7 |
Writes settings to: | Application folder |
Stealth: ? | No. Stores recently used folders in the registry |
Unicode support: | Yes. A non-unicode version is also available. |
License: | Free for personal use |
How to extract: | Download AntiTwin.exe to a folder of your choice and launch. |
What's new? |
|
Latest comments | Add comment 1› |
Easy Duplicate File Finder helps you find and remove duplicate files on your PC. It finds true duplicates by content (instead of file name and size alone). You can scan multiple folders/drives at the same time, and the search can be restricted by using a scan mask and/or specifying a size condition. Lists of duplicates can be exported to HTML.
Note: linking to what appears to be the last free version (2.4).
Category: | |
Runs on: | WinNT / Win2K / WinXP / Vista / Win7 |
Writes settings to: | None |
Stealth: ? | Yes |
Unicode support: | Yes |
License: | Freeware |
How to extract: | Download the portable ZIP package and extract to a folder of your choice. Launch EasyDuplicate.exe. |
What's new? |
|
Latest comments |
alan7654
on 2012-07-06 19:57
I confirm that this link gives good portable version 2.4
lindadorsey
on 2013-07-29 23:50
This tool is no longer free.
__philippe
on 2013-07-30 10:10
See all
46›
Alternative: also consider Nirsoft tiny (130k) file search classic : |
Duplicate Music Files Finder helps you find duplicate music files duplicates and delete them. It offers various options and filters for searching embedded tag information, so it is able to detect duplicates even if the filenames or sizes are not the same. It also comes with a module that can be used to quickly rename corrupted music files.
Category: | |
Runs on: | Win2K / WinXP / Vista |
Writes settings to: | Application folder |
Stealth: ? | Yes |
Unicode support: | No |
License: | Freeware |
How to extract: | Download the ZIP package and extract to a folder of your choice. Launch DMFF.exe. |
Latest comments |
Bonfiglio111
on 2010-04-28 13:58
Take a look at this duplicate finder tool to remove duplicates, from ashisoft.
a
on 2010-12-20 03:00
I never tried AudioComparer (the website screams spam/trojan)
antony09
on 2011-11-04 10:04
See all
8›
Duplicate Finder software will be useful for you. It will help you find duplicate mp3, tracks, music files. Search by mp3 title – you can use this method when you want to get more disk space removing duplicate mp3 files. Free download and try. |
Double Killer searches single or multiple folders/partitions for identical files. Files can be compared by name, size, date and/or CRC32 checksums. Masks like *.mp*g or *.dll are supported and files with certain attributes (e.g. hidden files, may be excluded from the search). When the search is finished a list containing all double files found is displayed and you can select the files which should be deleted or moved.
Although fully functional, a pro version is available for commercial use and has some advanced features.
Note: the main site has had some intermittent issues so we are linking to Softpedia.
Category: | |
Runs on: | Win98 / WinME / Win2K / WinXP |
Writes settings to: | None |
License: | Free for personal/private use |
How to extract: | Download the ZIP package and extract to a folder of your choice. Launch DoubleKiller.exe. |
Similar/alternative apps: | DuplicateFinder |
Latest comments |
Ken C
on 2009-01-18 15:26
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10›
Simple, quick, effective. |