Unfortunately the algorithm Decloner uses doesn't seem to be very reliable. I tried with some variants of different audio samples that had been worked on and saved under new names and it tended to erroneously lump these together even though they are distinctly different in content. They do have same size and dates because they share the same origin, so maybe Decloner puts too much emphasis on meta-data.

Some of my duplicate mp3 tracks in iTunes it identified correctly, but I already have a specific itunes duplicate app for that.

I can't use this as my duplicates are in the thousands and looking trough and verifying them all after Decloner have selected these simply takes too much time.

How do I remove a folder at the top of the app? I accidentally selected the Pictures folder instead of the iPhoto library. Also, will this work to find duplicate email messages?

Wonderful little app! I downloaded Decloner for fun as it was 50% off on MUPromo to see how many duplicated files it could find on my hard drive. I knew I had severals but nothing alarming.

Well, Decloner found for about 15GB of duplicates! Sometimes, I could have 5 times the same file in different project folders. Lots of MP3s already in iTunes but still wandering around in various folders. Buying it was a no brainer!

It’s easy to use and pretty fast. You have Trash, Reveal in Finder and QuickLook buttons next to each file names, which is very handy.

It would be nice to be able to see the date of the files on the main interface (with size, count and total) instead of having to select each file to see it.

Being able to slide the size, count and total all the way to the right to see really long file names would be my second request.

But be aware: it fragmented my hard drive severly after I deleted much of those duplicated files. The drive was spinning constantly and everything was dead slow. TechTool Pro 5 arranged that perfectly tough.

So maybe get yourself TechTool or iDefrag if you have gigabytes of useless duplicates like me.

This is a great little app. It doesn't have all the ten thousand options like some of the other duplicate file finders do, but it seems to be more accurate with what it DOES find. Very simple, fast, and helps unclutter my computer. Thanks. :)

Nice little app that does what it says on the can. Scanning is quite quick - took less than 30 seconds to scan a folder containing 43,500 photos (about 80Gb of data). Nice intuitive interface and easy to see what you're doing. The preview of the selected file at the bottom is a nice touch, plus you can see a larger preview if you want. Also I like the fact that you can move duplicates to a specific folder rather than delete them, just in case.

The website says it uses a cryptographic algorithm to compare files and it certainly found duplicates which had different names/dates.

Would be nice if it had the ability to compare two user specified folders, rather than just scanning a single location for duplicates, but that's easy enough to work around. Couple of bugs - the 'safe mode' setting seems to be reversed (when I tick Safe Mode it moves files to the Trash, but when I uncheck it, it then moves files to the safe folder??). Also, if you mistakenly delete a file outside of DeCloner (e.g. in Finder) and then try deleting it in DeCloner it hangs rather than just tell you the file is no longer there. However, on the whole I like it and will be buying it.