Bring order to file chaos on your Mac today, use Singlemizer to remove unnecessary file duplicates.

• Minimalist UI
Simple and lightweight UI doesn't distract with inappropriate animations and visual noise.

• External Drives Support
Scan internal and external HDDs, removable USB drives and even network directories on a remote Macs.

• Folders Priorities
Priorities help to determine which file from the group of found duplicates should be considered original.

• Efficient Scan Algorithm
Fast and precise detection of duplicates utilizing file's contents via cryptographic digest function.

• Progressive Results
Duplicates are listed as soon as they are identified. All copies of a particular file arrive simultaneously.

• Duplicate Folders Detection
Detecting duplicate folders makes a list of scan results much more compact.

• Duplicates' Filtering
Filter duplicates' list by filename and switch file type metagroups.

• Duplicates' Sorting
Sort duplicates' list by numerous criterias, such as wasted space or redundant copies count.

• Instant Quick Look Preview
Files from the results' list can be instantly previewed via Finder-like Quick Look function.

• One Click Duplicates' Selection
Select a couple of duplicates and click on the checkbox in front of any file to check all entries in the selection.

• Safe Duplicates' Removal
Original files are always left untouched. You can't remove the most important, last copies of data.

• Linking Duplicates to the Original Item
Power user?! Replace duplicates with aliases, symbolic links or hardlinks. All kinds at your service.

What’s New

Version 4.7.0

• complete redesign to the new Yosemite visual style
• a new built-in Quick Look preview of a duplicate items
• display of a scan progress information in a popover window
• the app now calculates the amount of a total freed storage
• numerous internal improvements
• all known bugs are caught, new bugs put in

Ratings and Reviews

4.0 out of 5
5 Ratings

5 Ratings

Shortonnyc ,

Best Dupe app

I have spent months trying all kinds of duoe finding apps and have been unbelievably frustrated as my music library becamae more and more out of control and these other apps are getting rid of everything including things ssngs that didn’t have any duplicates. Finally I came across this one and it has done the best job yet. It does have the tendancy to crash with large projects. Thaty needs to be looked into. Great program!

RyanRN ,

Does the job - watch out for hard links

Upon first running it I thought it wasn't working. I first ran this on two folders containing 15 identical jpegs. "diff -srq" reported them as identical.

However, they were already hard links! Checking the preference option re: hard links caused Singlemizer to detect them as duplicates.

Singlemizer did its job as expected.

The support link hits a 404, so alas it does seem like this app has fallen out of maintenance.

mhogg57 ,

I love this app!

This app is so useful! I’ve been using it for several years, and it makes organizing and cleaning up old files so much more simple!


Konstantin Pavlikhin
3.3 MB

OS X 10.9 or later, 64-bit processor


English, Russian

Age Rating
Rated 4+
© 2014 Konstantin Pavlikhin


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer