9 Best Duplicate File Finders for Mac of 2022: Paid and Free

Megan Charles
time April 14, 2022 Preview 124.2K
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The bad news is that duplicate files are eating up space on your Mac, potentially causing your Mac to slow down and perform poorly. The good news is that you can easily get rid of duplicate files with just a couple of clicks using a duplicate file finder for Mac.

There are a number of Mac apps to find and delete duplicate photos, videos, music files, documents and other types of duplicate files. They vary in performance, ease of use, cost, etc. In this article, you will find a list of top rated duplicate finders for Mac and a review of each.

 

The best duplicate file finder for Mac

#1 Cisdem Duplicate Finder

Compatibility: macOS 10.10 or later, including macOS 12 Monterey

Cisdem Duplicate Finder is the best of its kind due to its high performance, reliability and ease of use etc.

Using advanced algorithms, the app accurately identifies duplicate files by content, regardless of filename. It finds duplicate photos, audios, videos, Word documents, PDFs, presentations, archives and all other types of duplicate files. It finds similar photos too.

Supporting Mac and external storage devices, Cisdem Duplicate Finder can scan folders and drives for duplicate files. It can also find duplicates in Photos, iPhoto, Music and iTunes on Mac.

Cisdem Duplicate Finder scanning three folders for duplicate files

The app decides for you which duplicate files to delete. It displays the found duplicate files and automatically selects duplicates for you to mass remove. It also lets you decide. You can choose a selection rule or select by hand.

Cisdem Duplicate Finder displaying the found duplicate files

The app quickly and safely removes duplicate files from your folders, photo library and music library, helping you free up storage space and better manage your files.

Free Download

Pros

  1. Find exactly identical files
  2. Find near identical photos
  3. Find duplicate files in one folder/drive/library, or in and across multiple locations
  4. Allow you to exclude folders and files from scan
  5. Let you preview, sort and examine duplicate files
  6. Let you delete all duplicate files at once
  7. Offer 3 deletion options and a Restore from Trash feature
  8. Easy to use and powerful
  9. Customizable, letting you have control

Cons

  1. Incompatible with macOS 10.9 or earlier

Free Download

#2 Gemini 2

Compatibility: macOS 10.10 or later

In addition to the best duplicate file finder for Mac described above, there are other great apps to rid your Mac of duplicate files. Gemini 2 is one of them.

People are often impressed by how good looking the app is. But a beautiful interface can only be the cherry on top. What’s important is the ability to find duplicate files.

The app is capable of detecting duplicate photos, duplicate audios, duplicate documents, etc. in folders, Music and Photos. It does a good job of scanning folders (even large folders) for duplicate files. But it occasionally fails to find any duplicate in Photos. In such a case, try re-scanning.

You can manually select unwanted duplicates for removal or let Gemini 2 do that for you. The removed files will go to Trash.

There is also a Duplicates Monitor feature, which detects new duplicate files in real time and notifies users of them. But the feature uses lots of CPU and may slow down your Mac.

Gemini 2 showing four groups of duplicate files

Pros

  1. Come with a beautiful interface
  2. Scan for duplicate files and certain similar files
  3. Support Photos and Music
  4. Provide a built-in preview feature
  5. Provide an option to remove empty folders
  6. Detect newly created duplicate files

Cons

  1. Incompatible with macOS 10.9 or earlier
  2. A bit expensive

#3 Tidy Up 5

Compatibility: macOS 10.12 or later

Designed by Hyperbolic for “pro users”, Tidy Up 5 is a good duplicate file finder for Mac for experienced users. There can be a learning curve for inexperienced users.

Tidy Up 5 focuses on detecting duplicate image files and duplicate music files and also finds some other types of duplicate files. It can scan Mac’s Photos, Music and folders for duplicates. In the test, it didn’t do a good job of scanning Music.

The app provides two modes: Simple mode and Advanced mode. Beginners can start with the simple one. Both modes offer an array of scan options and criteria. Before scanning for duplicate files, you need to do at least a little configuration regardless of the mode used. It’s not that user-friendly compared to the best Mac duplicate file finders talked about above.

Tidy Up 5 showing scan options and criteria

Pros

  1. Search for duplicate files and certain similar files
  2. Provide 2 modes for users to choose from
  3. Provide a preview feature
  4. Select duplicates for elimination (or let users do it)
  5. Recognize hard links
  6. Highly customizable

Cons

  1. May fail to find duplicates in Music
  2. Not easy to use for beginners

#4 Easy Duplicate Finder

Compatibility: macOS 10.8 or later

Easy Duplicate Finder is available for both macOS and Windows. Highly compatible, it works well on a Mac running macOS Big Sur, macOS Catalina, macOS Mojave, macOS High Sierra or even an earlier version.

This piece of file deduplication software can scan MacBook Pro, MacBook Air, iMac etc. for duplicate songs, duplicate photos and more. It uses the SHA-256 algorithm, which could be a little slow. When the scan is complete, use Auto Remove to quickly eliminate duplicates in bulk. Or, use Manual Review to view duplicates and then remove the unwanted ones, which is more reliable.

The app excels at looking for duplicate files in folders and Music. However, when searching for duplicates in Photos, it will return no results or false positives. If you allow it to deduplicate, your Photos library will get damaged.

Easy Duplicate Finder showing a list of duplicate files and a file preview

Pros

  1. Identify common types of file duplicates
  2. Offer 2 modes: Easy and Advanced
  3. Provide an Auto Remove feature for quick duplicate removal
  4. Come with an easy-to-navigate wizard-style interface
  5. Easy to customize
  6. Easy to use even for novice users

Cons

  1. Relatively slow scan
  2. Can’t properly find duplicates in Photos
  3. A little expensive

#5 Duplicate Detective

Compatibility: macOS 10.7 or later

This Mac duplicate file finder and remover looks less sophisticated due to its unpolished interface. It actually does a fair job of scanning for and removing duplicate files on Mac.

You can use it to scan folders. However, it can’t identify all the duplicates in a given folder. Some duplicate files will be missed. And also, it can’t provide consistent performance. If you want to clean up duplicates in Music, this app won’t help. In the test, the duplicate songs it found didn’t even exist in my Music.

Duplicate Detective interface

Pros

  1. Support all common file types
  2. Can find common duplicates such as duplicate photos on Mac
  3. Offer an option to create an alias when deleting duplicates
  4. Easy to use
  5. Lightweight

Cons

  1. Incapable of finding all duplicate files in a location
  2. Can’t work well with Music

#6 Duplicate Sweeper

Compatibility: macOS 10.8 or later

Duplicate Sweeper is another lightweight macOS duplicate file finder and deleter. The app’s minimal interface is easy to use and navigate. Its welcome screen provides users with brief usage instructions. Even someone who is completely inexperienced can easily use it.

The app can only delete duplicate files in the folders on a Mac. In other words, you can’t use it to weed out the duplicates in your Photos or Music. Therefore, it may not be desirable for Mac users. But it can be a choice to consider if the duplicate files on your Mac do reside in folders.

Duplicate Sweeper interface

Pros

  1. Able to look for photo duplicates and other common types of duplicates
  2. Lightweight
  3. Ease-to-use interface

Cons

  1. Can’t identify the duplicates in Music and Photos
  2. Sometime fail to detect all dupes
  3. Limited customization

#7 dupeGuru (free)

Compatibility: macOS 10.12 or later

There are also free Mac apps available for the removal of duplicate files. What is the best free duplicate file finder for Mac? dupeGuru may be the answer. dupeGuru is free to use and open source.

The freeware app offers three modes: Standard, Music and Picture, allowing you to look for and delete duplicate pictures, duplicate music files and some others in folders on Mac. It’s not designed for Photos and Music. Even though it allows you to scan the Photos library, its deduplication algorithm will damage your library and cause data loss.

dupeGuru interface

Pros

  1. Completely free to use
  2. Open source
  3. Offer 3 modes to handle different types of duplicate files
  4. Fairly configurable
  5. Can find certain visually similar pictures

Cons

  1. No support for Photos and Music
  2. Can’t find all the duplicates in the folder it scans

#8 Disk Drill (free)

Compatibility: macOS 10.11.6 or later

Disk Drill is actually a data recovery app, but it offers a feature called Find Duplicates. The feature is available in the free and paid versions of Disk Drill, which makes the app available as a free duplicate file finder.

You can find the feature in the sidebar under the Extra tools section. This app can only scan folders for duplicates. To perform a scan, add a folder and then click the Start Scan button. There is no instant preview of duplicate files. To preview a duplicate, you need to click the eye icon next to it, which can be inconvenient.

Disk Drill interface

Pros

  1. Free to use
  2. Easy-to-understand interface
  3. Scan Mac folders for file duplicates

Cons

  1. Incapable of detecting all duplicate files
  2. Can’t scan Photos and Music
  3. Inconvenient preview

#9 MacKeeper

Compatibility: macOS 10.11 or later

If you tend to like the Disk Drill duplicate finder but need a good preview feature, check out MacKeeper, a cleaner and booster for Mac.

It offers three cleaning tools, one of them being Duplicates Finder. This tool will scan your Mac’s Home folder for duplicate files or allow you to specify folders to scan. It displays the detected duplicate files in an easy-to-view way with file information and preview.

MacKeeper displaying the duplicate files it has found on my Mac

Pros

  1. Find common types of duplicate files on Mac
  2. Also help get rid of similar photos and screenshots
  3. Easy to use

Cons

  1. Only work with folders
  2. Relatively slow when scanning
  3. Not available as a stand-alone app

Comparison of macOS duplicate file finders

  Rating Price Support Mac Photos
Cisdem Duplicate Finder 5/5 $29.99/lifetime Yes
Gemini 2 4.5/5 $44.95/lifetime Yes
Tidy Up 5 4.5/5 $29.99/lifetime Yes
Easy Duplicate Finder 4/5 $39.95/lifetime No
Duplicate Detective 4/5 $4.99/lifetime No
Duplicate Sweeper 4/5 $20.00/lifetime No
dupeGuru 3.5/5 Free No
Disk Drill 3.5/5 Free No
MacKeeper 3/5 $60.00/year No

Frequently asked questions

Does Mac have a duplicate file finder?

A duplicate file finder is an app that automates the process of detecting and deleting duplicate files. macOS, an operating system developed by Apple for its Mac computers, doesn’t offer a built-in duplicate file finder.

Luckily, there are apps to help you out.

What makes a good duplicate file finder for Mac?

There are a few criteria to consider. Below are two important ones.

The ability to identify duplicate files: You need an app that can properly compare files and accurately identify duplicates. Using an app that returns false positives may lead to deleting the files you actually need, which should be avoided.

The support for Photos: Unlike on Windows where photos are stored in folders, photos on Mac are typically stored in the Photos library (and managed via the Photos app). Some apps consider the library a normal folder when searching for duplicates in it, which may lead to damage of your library or loss of your files. You need an app that safely supports Photos.

How do I use a duplicate file finder?

Let the app scan the folder, library or drive in which you want to find duplicate files. Or, you can scan multiple locations at a time.

When the scan is done, you can check out the duplicates that are found.

Decide which duplicate files to delete. You can let the app decide for you, which is far more efficient.

Now you can remove unnecessary duplicates.

Conclusion

Removing duplicate files can free up storage space, possibly making your Mac run faster. Also, it’s easier to manage files on a duplicate-free computer. The best duplicate file finder for Mac can help you effortlessly, effectively and safely root out duplicates from your Mac, no matter where they reside and how deep they hide.

You can also manually eliminate file duplicates using Finder and Terminal. The former can lead to a time-consuming and tedious process. The latter requires that you have some command line knowledge.

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Megan Charles
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Megan has an impressive deal of experience with Mac software and has the ability to explain tech stuff in a simplified, straightforward and easy to understand way.

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Comments (12) Leave a Reply

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  • A Random Guy

    I'm happy with my old iMac in general, but it has little space left. I tried the app you recommended. It found tons of duplicate photos and other duplicates and freed up gigabytes of space. It's amazing.

    0 months ago Reply

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  • brownclark

    Having trouble with duplicate files? just use "DuplicateFilesDeleter program"

    5 years ago Reply

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    • Gina

      The duplicate file finder you recommend is only for Windows.

      5 years ago
  • M. Razali

    In so far tried Cisdem DuplicateFinder and giving it a 5*. Except I was using an unregistered version of the sofeware and thus I can't get it to delete the duplicates. Any chance of a discount coupon? :)

    5 years ago Reply

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  • Vonnegut

    5 out of 5 stars for this only program Cisdem DuplicateFinder. I used this duplicate file finder for years. Others are definitely not recommended.

    5 years ago Reply

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    • Rosa Reyes

      Hi, Vonnegut, thank you for the support of our product Cisdem DuplicateFinder. We will keep up the good work.

      5 years ago
  • Helen Krieger

    Downloaded the free trial, but though it will locate duplicates it won't let you delete the extra ones...so really the free trial is more of a preview I guess.

    6 years ago Reply

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    • Rosa Reyes

      Hi, Helen Krieger, free trial version of many duplicate file finder only allows you to find duplicate files; if you want to delete them, you have to buy.

      6 years ago
  • natamolestr

    Very well written! I will immediately seize your rss as I can’t find your e-mail subscription link or newsletter service. Do you’ve any? Kindly permit me recognize so that I may subscribe.

    6 years ago Reply

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    • Rosa Reyes

      You can subscribe by clicking "SUBSCRIBE" on the lowest right corner of the page and inputting your email address, then clicking "Subscribe".

      6 years ago
  • gabapentinea

    Regards our friends,

    6 years ago Reply

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  • angelo

    Try DuplicateFilesDeleter. Helped me few months ago.

    6 years ago Reply

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    • pachy

      where can I find a mac version?

      6 years ago
  • kevinm.lee123@hotmail.com

    Thank you for writing this useful article. I tried Cisdem DuplicateFinder, it really found all of the duplicate files on my Mac. It saved my hard disk storage.

    6 years ago Reply

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  • Richard90

    Cisdem DuplicateFinder is really the best solution. I used it to find duplicate files on my Mac, it did a good job. I like it. Thank you, writer.

    7 years ago Reply

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  • Chris

    Useful article, useful tool. I tried the first one as it seemed better than others. Actually, it did well.

    7 years ago Reply

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  • Barbara123

    Writer recommended so many duplicate finders, I tried the first one. It was great!!! Thank you!!!

    7 years ago Reply

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