Marat Kornyev
A tech-writer loving to find the best applications for Mac
16/07/2021
12 minutes to read

Searching for duplicate files on a Mac is not a quick and simple task. There are a variety of special apps that make the process of finding duplicate files faster and easier. However, you can stumble upon a bunch of paid or free software, and as a result, get confused. Because of this, we tested the most popular duplicate searching applications for Mac and prepared a comparison chart of them to help you make the right choice.

6 Best duplicate file finders for Mac in 2021

Features
Duplicate File Finder icon
Duplicate File Finder
Gemini 2 icon
Gemini 2
Disk Drill icon
Disk Drill
Duplicate File Fixer icon
Duplicate File Fixer
Duplicate Sweeper icon
Duplicate Sweeper
Cisdem icon
Cisdem Duplicate Finder
Lifetime license
$19.99 $44.95 $39.99 $6.99 $13.99 $29.99
Yearly renewal price No $19.95/year No No No $19.99/year
License for subscription
Rating
4.7/5.0 3.8/5.0 3.9/5.0 4.0/5.0 1.0/5.0 3.8/5.0
Performance (130GB)
5 sec
35 sec
5 sec
30 sec
35 sec
2+ min
Optimized for BigSur
M1 support
Finding duplicate files
Finding duplicate folders
Finding similar pictures
Finding similar folders
Finding similar folders
Free Trial

(allows only to view duplicates)

(allows only to view duplicates)

*Similar audio files are tracks that are duplicates of the same song, however, they have different metadata and might have different track times, meaning one of them can be a little longer or start the actual content later.

Important notes and methodology used to compare Mac duplicate finders
All the applications that are mentioned in this article were tested on MacBook Pro 2020 with an M1 processor.

When making a research and comparing applications, we paid attention to the following criterias, which are especially important for the users:

  1. Ease of accessing the application – distribution on the App Store or on the developer’s website.
  2. Prices and pricing policy: one-time purchase or a subscription.
  3. Ease to use: interface, intuitive usability, clearness of the features’ names.
  4. Usefulness and uniqueness of the features.
  5. Scanning time speed.
  6. Availability of the Auto-select option and diversity of its rules.
  7. Availability of the developer’s team support and the speed of responses.
  8. Applications built-in tips and help guides on the developer’s website.
  9. Information about the last five updates.

Cost:
Free, Pro mode for 19.99$
System:
macOS 10.12 or later
Size:
19.9 MB
Rating:
★★★★★ / 4.7

find duplicate files

Pros

  • Free version.
  • Fast Hard Drive scan time.
  • One-time purchase.
  • Scan of external drivers.
  • Merges similar folders in PRO version.
  • Finds similar and duplicate photos in the Photo Library.
  • Option to restore accidentally deleted files.
  • Finds similar media files.

Cons

  • 𐄂 Have to pay for additional functionality.
  • 𐄂 No dark mode.
  • 𐄂 For some functions, you may need a tutorial.

Overview

Duplicate File Finder by Nektony helps you find duplicate files on Mac and on any external storage. It has the fastest scanning speed of duplicates in comparison with other applications we tested on MacBook Pro 2020.

Also, Duplicate File Finder detects similar folders, which have both equal and unique files, and provides you with an option to merge them, which helps you quickly organize your files. Moreover, Duplicate File Finder detects similar media files – photos and audio. It scans your Photo Library and then shows similar photos helping you to choose a photo with the best quality and offering you to delete all the unneeded ones. This feature helps you to make your clean-up process as easy as possible.

Pricing and Evaluation policy

Duplicate File Finder’s great thing is that you can get a free version of it and test the software before actually committing (spending money on it) to it. There are three options for the application. First, the free version from the App Store, the Pro (paid) version, and the application’s website version come with a free 7-day trial.

The free version allows you to search for duplicate files on a Mac and remove them. The free version of Duplicate File Finder is an independent application, not a trial, and has more features than other free duplicate removal apps. For the advanced features like removing duplicates in bulk, comparing folders, or merging folders, you can then upgrade the app to a Pro mode for only $19.99.

How to use Duplicate File Finder – Video Guide

Unique features

Select Duplicates in Folder – it allows you to quickly select unneeded copies in a particular folder. You will need a Pro mode to use this option.

Merge Folders – you can merge folders to organize your Mac storage. Choose the source folders and a destination folder and click to merge all content inside these folders. You can set up whether the unique files will be copied or moved from one folder to another one. Merging is available in the Pro version.

Update history

From the update summary of Duplicate File Finder by Nektony, it can be seen that the application is being updated pretty frequently and that the updates are not just bug fixes but the team also adds new and interesting features. From the last update, the app supports M1 (Apple Silicone) processors. Also, you can find more information about the update history here.

Gemini 2 icon

Gemini 2

Cost:
Free, Pro mode for $19.99/yr
System:
macOS 10.10 or later
Size:
46.2 MB
Rating:
★★★★☆ / 3.8

Gemini duplicate finder

Pros

  • Has a free option with the majority of features being available.
  • Dark mode.
  • Amazing design.
  • Different paying options.
  • Option to restore accidentally deleted files, before you clean the Trash.

Cons

  • 𐄂 Free version does not allow you to delete files automatically.
  • 𐄂 Slow scanning.
  • 𐄂 High price.
  • 𐄂 Cannot select in one folder.
  • 𐄂 Cannot merge similar or identical folders.

Overview

Gemini 2 is an application created by the MacPaw company, which focuses on Mac applications. This app scans files and folders on your disk and detects twin and similar media files. Gemini 2 can search duplicates of files on your Mac, including the Photos Library and iTunes Media folders. It has a straightforward interface, which is similar to Finder’s design.

Pricing and Evaluation policy

The Gemini 2 app has a free trial, which is available on the MacPaw website. The free trial of the app allows you to clean up 500 MB of duplicates only. The paid version can be downloaded from the App Store for $19.99 for a one-year subscription or $44.95 for a one-time purchase.

Update History

From the update history, it can be seen that the team is working very hard on Gemini 2 and keeps on making it better and better. The updates are pretty frequent and are not just bug fixes. For instance, the last major update was in March 2021 and now, Gemini 2 moves images to Recently Deleted album in Photos app on Catalina and higher macOS versions, and renamed one of Duplicates Monitor preferences, so now it’s clear that the app will be launched with the system startup. The latest update in May only provided us with bug fixes.

Disk Drill icon

Disk Drill

Cost:
Free, Pro mode for $39.99
System:
macOS 10.11 or later
Size:
16.8 MB
Rating:
★★★★★ / 3.9

All duplicate files section in Disk Drill

Pros

  • More than just a duplicate file remover, it is also an application for junk removal
  • Modern design
  • FIle recovery features
  • Great auto select options

Cons

  • 𐄂 High price, if used only as duplicate remover

Overview

Unlike other applications in this list, Disk Drill is not just a duplicate file finder. This application was designed to help you restore the information you have recently deleted. However, it has an option to check your Mac for duplicates and be honest, which will be the feature of our focus today.

Pricing and Evaluation policy

Here is the good news. The app can be downloaded directly from the developer’s website, and you can try it absolutely for free, or you can go ahead and get it from the App Store for only $39.99.

Update History

From the update history, it can be seen that the updates were major. However, the last update was in 2021.

Duplicate File Fixer icon

Duplicate File Fixer

Cost:
$6.99
System:
macOS 10.7 or later
Size:
2.5 MB
Rating:
★★★★★ / 4.1

scan window duplicate file fixer

Pros

  • Frequent updates
  • M1 support
  • Great price
  • Small size of the application
  • Works on older MacOS versions

Cons

  • 𐄂 Updates are minor
  • 𐄂 Cannot work with duplicate folders
  • 𐄂 Limited auto-select options

Overview

Duplicate File Fixer is an application developed by Systweak Software. Like any other application from the list, this is an application that finds duplicates on your Mac hard drive. The price is $6.99 on the App Store. The requirements work on Macs with macOS 10.7 + and have an excellent 4.1 rating on App Store.

Update History

From the update history, we can see that the team is constantly working on improving the application. However, most of their updates mostly include bug fixes and they are not providing users with great new features. The app is usually updated once in three month, but each update is followed by one or two more in the next few days, with even more bug fixes.

Duplicate Sweeper icon

Duplicate Sweeper

Cost:
$4.99, free trial
System:
macOS 10.8 or later
Size:
3.9 MB
Rating:
☆☆☆☆☆ / 0

Duplicate files after scan in Duplicate Sweeper

Pros

  • Dark mode support
  • Wide set of auto-select rules
  • Auto-select right from the scan
  • M1 optimized

Cons

  • 𐄂 Rare and minor updates
  • 𐄂 No AppStore ranking
  • 𐄂 Limited functionality of settings

Overview

The Wide Angle Software company created the Duplicate Sweeper. The company specializes in applications for Windows, Mac, iOS, and Android. Duplicate Sweeper is another yet practical application that scans folders on your Mac and detects all sorts of duplicates.

Pricing and Evaluation policy

Here is the good news, you can try Duplicate Sweeper by downloading it for a free trial from the Wide Angle Software website, or you can download it from the App Store for $9.99. On the other hand, the free version only detects duplicates and takes you to them, but the paid version deletes them.

Important Note

Duplicate Sweeper can detect duplicates within applications. This means that if you accidentally delete some critical content of the application. As a result, the app might not function correctly. To avoid this, please, carefully review all the items on the Other tab and deselect those items with which you are not familiar.

Update History

From the update history, it can be seen that the updates are rare and minor, they only include bug fixes. The app’s update history is almost spontaneous and extremely minor. The last five updates included only bug fixes.

Cisdem icon

Cisdem Duplicate Finder

Cost:
Free, Pro mode for 29.99$
System:
macOS 10.10 or later
Size:
2.5 MB
Rating:
★★★★☆ / 3.8

After scan window in Cisdem Duplicate Finder

Pros

  • M1 optimized
  • Frequent updates
  • User-friendly interface
  • Small application size

Cons

  • 𐄂 Long scan time
  • 𐄂 Similar photos might not really be similar

Overview

The Cisdem company provides different types of applications for Mac users, including the Cisdem Duplicate Finder app. This application scans your Mac for duplicates and similar photos. It also can find twin files in the Photos Library and iTunes Media folders on your Mac. The app has a simple interface, takes up 8.9 MB, and is suitable for macOS 10.10 or later.

Pricing and Evaluation policy

You can download Cisdem Duplicate Finder right from the App Store for $29.99 for lifetime use or $19.99 for one-year use, or try using it with a free trial available at the Cisdem website. However, the free trial of the app does not allow you to delete duplicates. It is only possible in the paid version.

Important notes when using the application

  • Check Preferences before the scanning process. The scanning process may take some time. It depends on the options you have chosen in the Preferences. You can scan by File Content or File Name and vary the size of scanning files. It also depends on how many folders you are going to scan. It is better to scan your Mac Home Folder or other data in batches. You can create an Ignore List of files, folders, and files of particular extensions before the scanning process.
  • Also, be careful while using the Similar Photos option because the app finds files that differ quite a bit, and it can be a potential issue. You can accidentally delete different photos.

Update History

From the update history, it can be seen that the application is being frequently updated and each update provides both bug fixes and new features, or extensions for the old features. The developers provide us with updates every two to three month and they make each update special by adding new and amazing features to the app.

Conclusion

Let’s just sum it up a little. All six applications are great because they have made it to the best Duplicate File Finders list. Each application has its ups and downs. Below, you can see a more detailed comparison chart of top Mac duplicate finders with the list of available features in each of them.

A detailed comparison chart of Mac duplicate finders’ features

Features
Duplicate File Finder icon
Duplicate File Finder
Gemini 2 icon
Gemini 2
Disk Drill icon
Disk Drill
Duplicate File Fixer icon
Duplicate File Fixer
Duplicate Sweeper icon
Duplicate Sweeper
Cisdem icon
Cisdem Duplicate Finder
Evaluation
Free version limits Can’t remove folders Remove only 500MB Can’t remove files, folders Can’t remove folders Can’t remove files, folders Can’t remove files, folders
Performance (130GB)
  • Duplicate files
  • Duplicate folders
  • Similar folders
  • Similar pictures
  • Copies in Photos Library
  • Copies in iTunes
  • Similar audio files*
5 sec
35 sec
5 sec
  • 30 sec
  • 35 sec
    2+ min
    Notarized by Apple
    Notarization means developer ID-signed software has been checked by Apple for malicious components.
    The software passed Apple rules of privacy, safety and security.
    Overview report
    Built-in search
    Auto-select duplicates
    Auto select rules
  • Customized auto-select rules
  • Compare two folders and find duplicates
  • Keep in the folder…
  • Select by name
  • Select by path
  • Select by date
    Built-in file preview
    Priview files by types
    Restore function
    Restore accidentally deleted YES YES YES YES No YES
    Advanced features
    This depends on the application and each application is unique, the unique features will be described in the detailed review.
    • Replace files with links
    • Find hidden duplicates
    • Scan multiple folders
    • Select duplicates in bulk
    • Select Duplicates in Google Drive
    • Find similar folders
    • Merge duplicate folders
    Score 27 19 11 15 14 15

    It can be seen that Duplicate File Finder by Nektony justly takes first place in this list of applications as it has tons of features that will help you get rid of duplicates and organize your files.

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