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cNet Editors Review...

Once upon a time, duplicate files were so evil that no expense and effort was spared to hunt them down, terminate them, and erase every trace of their existence. Hard drives grew, and duplicate files became less of a problem. Then came digital cameras, MP3s, and video, and suddenly duplicate files are once again threatening to take over the world, but today's duplicates are sometimes bigger than entire hard drives were back when dupes were space-sucking villains.

Fortunately, the duplicate file finders have kept pace, and today's tools are far better than yesterday's at identifying and filtering duplicates without removing the wrong files. Duplicate File Finder from AshiSoft not only does its job well, but it's also easy to use. It works with 32-bit and 64-bit Windows versions and requires Microsoft .NET Framework 4.

When Duplicate File Finder's installer finished, the program's quick start Web page opened in our browser. This page offers step-by-step instructions illustrated by clear, annotated screenshots. Duplicate File Finder's interface is attractive, with lots of Aero touches, but all business, too. We started with the Search Options tab, specifying how we wanted to configure our search. Next we added a Path on the Location tab and then added those folders we wanted the tool to skip to the Exclusions tab. A Protected Folders tab let us protect specific folders from accidental deletion--a good idea, especially if you use a system cleaner or other tools that delete files. Our search finished quickly, and the results appeared in the Results List with location, date added, size, and other file information. We could also view duplicates in a preview pane to make sure they were in fact duplicates and not just similar in some way. Once we'd selected all our duplicates, we could take several kinds of action, including marking, moving, copying, and deleting files.

Duplicate File Finder searched not only our hard drives but also removable drives, so it can find duplicates on a memory stick or thumbdrive before you transfer them to your PC. It also searches networked PCs. It's easy to use, fast, flexible, and offers lots of help.

If you have a large collection of any type of digital media, whether it be photos or music, odds are you'll end up with duplicates. Hard drives are so big nowadays, it's not so much a matter of saving space as it is having a neat and organized library of digital data. I posted about this exact problem earlier and Filip suggested I try Duplicate Finder 2.0. The user interface isn't very polished, but all in all the program works quite well - it's very fast, chewing through 13,000 or so MP3/WMA files in about ten seconds on my AMD 3500+ machine. It sorts the results in a list that shows the folder location, file size, and other data, and lists the duplicates in clusters. This makes it fast and easy to press the space bar to tag the duplicate you want to remove, then at the end of the process you can delete all the tagged files at once. You can also chose to move the duplicates to another folder instead of deleting them if you're extra paranoid about data loss.

It can also be used for finding duplicate photos. Using it on 9500 or so photos and set to find duplicates based on byte size, I was surprised at the number of duplicates I had! I pride myself on my well-organized photo collection, so this was a rather rude surprise. There's a pop-up picture viewer, but it doesn't resize based on aspect ratio so you end up with distorted pictures. All in all this is a fairly useful tool, If you have a messy digital media collection with a lot of duplicates, this is a useful tool.

Duplicate Finder helps you maintain your system health and life by cleaning it of duplicate files which take up hard disk space. Duplicate files can be created for various reasons and it has detrimental effects on your system performance. This reliable tool can identify duplicate files byte by byte for accurate and faster results. It has the ability to show the files versions and properties. The results can be derived in HTML and CSV formats. The interface of the tool is very user friendly even for novice users. It supports all network connections as well works with removable media devices like floppies and other tools. Duplicate files which are created at the time of installation of some application and running of some programs can be identified very easily with this tool. It successfully removes true duplicate files saving your disk space and enabling smooth running of your systems.

As you might expect, Duplicate Finder finds duplicate files on your computer and lets you erase, move or re-name them. As dupe tools go, it's a good one. The interface isn't particularly impressive, but the program has some nice filtering and exclusion features that make it very easy to search for exactly the type of file you want to check.

Duplicate Finder has four different search modes that will give you varying levels of power. Same Name Files and Zero Size File will give you a superficial search that's good for getting rid of major clutter, while Byte to Byte and CRC32 are more complex methods that find files identical in content but not in name. Once found, Duplicate Finder displays the results in an easy-to-read table that shows you exactly where the duplicates are located.

Customer Reviews

We have received great feedback from thousands of users, here is a small sample of what some of them say about Duplicate Finder:

Great program that does a superb job of finding real duplicates with no false positives and doesn't miss anything. Ability to search across multiple drives and directories at the same time is very helpful in reducing redundancy on USB thumb drives that are used as a shuttle between machines.

"I purchased this program to pull duplicates from my IncrediMail LETTER, E-CARDS, NOTIFIERS, ANIMATIONS and SOUNDS. Why??? "I have the tendency to just CLICK download all for each category WITHOUT checking to see 'IF' I have already downloaded those items all ready. This helps me remove any duplicates that "I" may have 'jammed' into my IncrediMail program."

'In addition, I use it to pull 'duplicates' out of my 'GENEALOGY' Media file for Family Tree Maker 2009. Occasionally, I rescan a document or photograph, when I did NOT have to, as it is already on the FILE, 'somewhere'!!!"

Lady Customer This program saved me days spent deleting a ton of duplicate files when I upgraded to Windows 7. I had backed up all my personal files onto a portable hard drive where my backup was also stored, bad mistake. Duplicate Finder saved the day.

Just can't think of anything that jumps out on me. it would be magic if it could offer to keep the duplicates that you had given meaningful names to (such as "John's New Car"), and highlighted the duplicate (such as "DSC2482") for deletion.

I like the straightforwardness of Duplicate-Finder. When you need to use an application it's not the time to sit down and scratch your head about how to use it. Duplicate-Finder must gets on with the job of highlighting the unnecessary junk in your folders.

I had pst files in 6 hds and the program cleaned it up. It is easy to use and customer service is great. I bought the program over a year ago and used for a few weeks. Now I need it again. But the HD was dead. after I reinstalled the OS I went to the web page for duplicate finder put my email address and they send me all the info I needed it to reinstal a newer version of the program within 15 seconds and for free. YES. FREE.

I used and tested Duplicate Finder fairly extensively now and find it a great program. It really can sniff out those duplicate files that just take up space on your storage media and generate a clutter in your file system.The feature that I find most useful is the capability to find those duplicates that have nothing in common (e.g. filename, date, etc.) except being identical in content.

... this is the most thorough and fastest duplicate finder I could find - and I have tried quite a few!"

Lady Customer This is an intuition-driven software product - only occasionally did I need to refer to the Help Manual. 125,000+ files double and triple-saved in different locations. A manual sort would have taken me a couple of weeks. The only hiccup I had was telling the software to look in two major (and separate) file locations - I didn't know how to add the second location. No problems otherwise. It would have taken me a couple of weeks to manually sort the 25,000+ files. Duplicate Finder just motored along in the background for a few hours, and without any setbacks whatsoever, told me what was duplicated. Then I thought that I would have a labour-intensive time ticking the boxes of the ones I wanted removed, but I found another option within Duplicate Finder that allowed me to remove the older files. That worked a treat. It was such a relief to have all of this sorted - highly recommended software from my point of view!!!

The ease of use and the ability that it locates duplicate files even if they are slightly different in name...For example me.jpg and meagain was easily located on my comp using this software .......the are both the same picture! Nice job on this one!

This the pros of this product far outway the cons and even though I did list a couple of cons, this software is absolutely worth trying out!

Duplicate Finder 3.5.3 uses very little space on my computer, downloaded fast, has a USER-FRIENDLY interface, hallelujah, and actually outperformed every other duplicate file finder I have used - purchased or free. A+++++!

I used this on a Vista system,and I was able to easily locate the files that were listed.I checked a number of files to assure they passed te duplicate test which they did.It was of interest that a large majority of the duplicates were found within two programs Yahoo messenger and Acer.A program that every pc user could make use of .

Has good funtionality without being too complex and difficult to use. I've tried and had on trial - dozens of recommended duplicate removal and identification software programs and this is the one that I prefer - but I think that it could still be improved on. In other words Duplicate Finder is the best value for money duplicate finder and manager that is currently available for a personal licence. I have not yet found a duplicate finding utility program that desreves 5 stars.

Duplicate finder has proven itself to be a real workhorse for me. I had a huge number of document image files with duplicate file names on files with differing content and files with the same content but different names. Times and dates did not match and because they were imaged documents the contents could not be compared except bit by bit.

Duplicate Finder has been up to the task and it has even saved me from deleting all copies of a file by issuing a warning and allowing me to recover. I have complete confidence when I issue the delete command on thousands of files that they are the right files (even though the names, dates and times may differ for a given duplicate) and I know that I'm not erasing all copies of a file because the program won't let me unless I tell it I want to. The developer has been very responsive whenever I have made a suggestion or comment to him and a pleasure to deal with.

I wholeheartedly recommend Duplicate Finder to anyone who wants to tackle their duplicate files.

As a Computer Forensic Examiner, I have a great need to maintain multiple copies of electronic artifacts for extended periods of time. This, however, can become a burden in terms of disk storage consumption and needless redundancy by error. I just purchased Duplicate Finder in order to support my non-business needs and, in the process of using it for the non-business purposes, I pleasantly discovered the tremendous advantages it could bring to the business activities.

In a very short period of time, I was able to eliminate previously undiscovered duplicate files, which reclaimed just over 491 GB of a total of 2.2 TB storage space. The interface is tremendously easy to use and intuitive in every way. What an excellent solution for someone who over duplicates in order to be on the safe side, or just every day accumulation that tends to build over the normal course of time and file/folder management.

Thank very much to the Ashisoft Team, I will be purchasing additional tools very soon.

I've been looking at threads here about dupe finders. Most are OK but don't allow much automatic operation. I've found one called, strangely enough, Duplicate Finder that I think is pretty good. Does CRC and byte/byte comparisons and allows you to batch mark and batch delete or move the dupes. Has a tiny image display, so it's not much good that way, but the main view shows all file details so you can combine that with a quick review to be sure you're not moving or deleting anything you don't want to. Anyway, I have no investment in the program, just though there might be others in search of a tool to easily clean up those photo directories. I managed to move about 3500 of 19000 files that were duplicates to a new directory where I'll let them sit a while. Eventually I'll delete.

I have used Duplicate Finder to eliminate thousands of duplicate emails on my hard drive. Duplicate Finder is easy to use and very fast. I especially like the fact that you can search any one folder or the entire drive. It has saved me days of hand labor. I tested the program by making small changes in identical files and found no errors. A great program and response to questions by the author was quick and concise. I would recommend this program to anyone looking for duplicate files.

I have been using duplicate finder v2.0 and then v2.5 for over two years now and have had no problems with either version! I run your program a minimum of five times a day with all types of files, and with folders that have as many as 200,000 files to be compared for duplication! I also run a weekly check on a 75 GB stored database to ensure there are no copies duplicated. I look forward to seeing what the new v2.8 can do!