Top 7 Best Duplicate Photo Finders for Mac 2019: Delete Duplicate Photos in Minutes!

2019-08-21 05:16:02 / Posted by Megan Charles to Utility Follow @ Megan

Are you looking for the best duplicate photo finder for Mac to find and remove duplicate photos and free up storage? Check out this list of the top 7 duplicate photo finders for Mac.

Thanks to smartphones and digital cameras, nowadays it is so easy to take photos. It’s common for us to transfer photos between devices and copy photos for particular purposes, which could result in several copies of the same photo. Duplicate photos are useless. What’s more, they can waste a lot of space. Here you can find a list of duplicate photos finders that can detect and remove duplicates photos and even the similar ones from Photos library and other selected folders on your Mac.

What makes a good duplicate photo finder for Mac - 8 criteria

  • Ability to find duplicate photos A good duplicate photo finder should excel at measuring the similarity between pictures from various aspects such as content and filename. For example, users can use it to find photos completely identical in content but different in filename or size.
  • Ease of use A user-friendly and intuitive interface can absolutely be a big plus. You may need to remove duplicate images on your Mac on a regular basis. A powerful duplicate photo finder with simple UI can make things extremely easy for you.
  • Support for Apple Photos Duplicate photos in Photos app could be a big source of duplicate image files on one’s Mac. The best Mac duplicate photo finder must support Photos (iPhoto).
  • Scanning speed You will surely benefit from fast scanning especially if you have a very large collection of photos on your Mac.
  • Preview feature Not every duplicate file finder comes with a preview option. But when it comes to a duplicate photo finder for Mac, this feature is almost essential.
  • Safe removal In addition to permanently eliminating selected duplicates, there should at least be an option to move files to Trash. The best duplicate photo finder for Mac should allow easy restoring of deleted duplicates.
  • Flexibility to customize In addition to usability and performance, we also look for customization with which we can have control over the scan and removal process. Customization options such as filtering can be very useful.
  • Extra features If two apps are equally good at finding and deleting duplicate photos on Mac, then the one with useful extra features wins. These could be multiple view modes, support for other file types such as video and audio, etc.

The best duplicate photo finder for Mac

With these criteria in mind, we tested over ten popular apps for duplicate image removal and picked Cisdem Duplicate Finder for Mac.

Supporting all popular image formats such as JPG, PNG, GIF, BMP, TIFF, WebP, etc., this Mac duplicate photo finder can find duplicate photos and similar photos regardless of name, size or location.

It can also find and delete duplicate videos, audios, documents, spreadsheets and some other types of duplicates.

supported file types of Cisdem Duplicate Finder for Mac

Here is a list of the main features offered by Cisdem Duplicate Finder for Mac.

  • Easy to use with a simple, intuitive interface
  • Finds true duplicate photos by content
  • Finds similar photos, allowing you to customize similarity level
  • Also finds duplicate songs, videos, documents, etc.
  • Removes duplicates from Photos & iTunes
  • Delete duplicate files on internal & external hard drives, SD card, etc.
  • Scan: 2 scan modes, folder exclusion, and multiple filters (size, extensions, etc.)
  • Preview: side-by-side preview, 4 options to sort duplicates, keyword search, etc.
  • Removal: Auto Select, 7 selection options, 1-click deletion, 3 removal options

Free Download

Brief Review

Cisdem Duplicate Finder for Mac is highly efficient with a powerful scan engine. Using the MD5 value checksum algorithm, this app can quickly scan and accurately detect true duplicates regardless of filename. It can also find duplicates in external hard drives, USB drives, memory cards, etc.

In our test, the best duplicate photo finder scanned over 12,000 pictures in less than one minute. Real-time scanning results will be shown as the scan process goes on. You can choose to scan files by content or by name. This duplicate photo finder for Mac offers multiple filtering options for scanning and allows you to select minimum and maximum file size. Using its Ignore List feature, you can exclude specific file extensions and types. For example, to prevent this duplicate file finder from scanning the PNG photos on your Mac, just add the extension .png to the Ignore List.

Once the scan is finished, the app will auto-select the duplicate copies for you to delete. You can easily preview photos and remove the unwanted ones by clicking the Delete button.

It supports OS X 10.10 Yosemite and later, including macOS 10.14 Mojave. A free trial is offered. Free lifetime upgrades are also available.

Basic: How to remove duplicate photos in 3 easy steps

Step 1Add folders and drives to scan

Download and install Cisdem Duplicate Finder for Mac. Click the add symbol to add one or multiple folders or drives to scan. Click Scan.

scan Mac folders and drives for duplicate photos

To find duplicates in Photos, just add the library folder.

Step 2Preview

After scanning finishes, go to the Images tab where you can find all the duplicates pictures. In the upper right corner of the preview window, you can change the preview mode.

preview duplicate photos on Mac

Step 3Delete with one click

This duplicate photo finder will automatically select the duplicate copies of the same pictures for you to delete. Click the Delete button. By default, the selected files will be moved to Trash.

To change selection options, click the menu icon in the upper left corner of the preview window. You can also select or unselect manually.

Advanced: How to customize scan and removal

This how-to will help you make the most of the best duplicate photo finder for Mac.

Before scanningCustomize settings

Every time you find and remove duplicate files such as duplicate pictures on your Mac, you can set scanning options based on your need.

Before adding folders to scan, click the gear icon in the upper right corner. Under the General tab, you can find a few options. The default Scan Method is File Content. Move to Trash is the default Removal Method. In general, the default settings are recommended.

customize the best duplicate photo finder for Mac

The Similarity Level affects how this duplicate photo finder for Mac finds similar photos. The default level is 70%. Adjust similarity by sliding the slider.

Go to the Ignore List. You can add folders and file extensions to exclude. Folder exclusion is especially useful when you want to scan an entire drive while needing to skip certain folders. To add folders or extensions to ignore, just click the add button.

Ignore List feature provided by the best Mac duplicate photo finder

Duplicate photosPreview and remove

Once the scan is completed, go to Images. You will find two tabs: Duplicate and Similar.

Under the Duplicate tab, you will find groups of duplicate images. They are exactly the same in content, file size and resolution. The only difference can be the filename. Based on the default scan method (Scan by File Content), this duplicate photo finder doesn’t consider filename when identifying duplicates.

You can click a group of duplicates to preview them. In the lower left corner, there is a search box where you can enter keyword. Click the dropdown icon next to the search box, and you can choose to sort groups of duplicate photos by Name, Size, Count or Type.

The best duplicate photo finder for Mac provides three preview modes. You can easily zoom in or zoom out. The third mode allows you to view file information such as Data Created, Size, Resolution, etc. In the upper left corner of the preview window, click the menu icon to select from the four selection options. By default, this Mac duplicate photo finder will automatically select Smart Select. You can also select or unselect manually.

Smart Select feature provided by the best photo duplicate finder for mac

Click Delete, and the selected photos will be deleted or moved according to the default or custom setting.

Similar photosPreview and remove

Go to Images > Similar. You can find groups of similar images. They can be:

  • Exactly same in content but different in size or resolution
  • Almost identical in content but with slight differences (regardless of size, resolution, etc.)

This feature can help you find resized images, photos taken in burst mode, edited versions (such as changes in color, orientation, sharpness, etc.) of the same photo and other types of similar images.

use the best duplicate photo finder to look for similar photos

Note that the Similarity Level in Settings will affect how this duplicate photo finder for Mac measures similarity.

Click the menu icon and select from the seven selection options the one that meets your need. Click Delete to get rid of them.

seven selection options to select and delete duplicate images on Mac

The competition - List of the best duplicate photo finder for Mac

#1 Easy Duplicate Finder

Easy Duplicate Finder is a powerful duplicate image finder for Mac to find and remove duplicate files such as photos, documents, audios, videos, and more. Just drag and drop folders into the program window and start the scan. It will quickly and easily find duplicate image files including JPEG, TIFF, BMP, PNG and GIF.

The duplicate photo finder for Mac will scan multiple sources, folders and devices in order to find duplicate photos on Mac. It helps you free up space on your Mac and hence helps improve the overall performance of your Mac.

As of one of the best duplicate photo finders available for Mac users, it’s very easy to use. When it finishes scanning, it will tell you about the amount of files scanned and duplicates found as well as the storage space that will be freed up.

easy duplicate finder for mac

Price: $39.95 for one-year subscription

Platforms: OS X 10.6 - 10.14.2 Mojave & Windows 10/8/7/Vista

Duplicate-finding algorithm: CRC32 checksums or via a byte-by-byte comparison


  1. Supports pictures, videos and music
  2. Filters for file size and extension
  3. Multiple scanning modes and sorting options
  4. Can find a large number of duplicates
  5. Easy to use


  1. Can’t preview side-by-side
  2. A bit expensive compared with other duplicate photo finders for Mac

#2 Duplicate Photo Cleaner

Duplicate Photo Cleaner is designed to find duplicate and similar photos on macOS. By looking for similarities in different photos and images, it can locate duplicates quickly.

Duplicate Photo Cleaner supports JPG, PNG, TIFF, RAW and other common image formats. It is easy to use with a simple and modern interface and provides two scan modes to find duplicate photos on Mac. Despite being a little pricey, it’s a decent tool to find duplicate photos on Mac.

The interface is simple and very easy to understand, which helps make it one of the best duplicate photo finder tools for Mac. You can add folders to scan for duplicates by dragging and dropping or by clicking the Add Folders button. Before scanning, you can exclude file formats, specify file size and adjust the similarity rate.

Duplicate Photo Cleaner for Mac

Price: $39.95 for full version

Platforms: Mac OS X Lion 10.6 – Mac OS X Mojave 10.14 & Windows 10/8/7/Vista

Duplicate-finding algorithm: unrevealed


  1. Simple, easy to use interface
  2. Can find both duplicate and similar photos
  3. Supports various image formats
  4. Multiple removal options


  1. Has problems scanning a whole hard drive
  2. A bit costly

#3 PhotoSweeper

Here’s another duplicate photo finder for Mac that we think is worth recommending. As the name PhotoSweeper suggests, it’s designed for dealing with photos. This tool can find duplicate as well as similar photos on Mac. In addition to allowing users to find duplicates in Photos or iPhoto library, it also supports external storage devices. PhotoSweeper moves duplicate photos to the Trash where you can permanently delete or restore them.

There are to ways to add folders for scanning. The scanning is a bit slow when compared with other best duplicate photos for Mac. Click Compare, and the What to Find dialog box will appear, providing a number of settings and options. Under Duplicate Files, you can adjust how this tool matches filename. Under Similar Photos, you can customize Matching Level and select comparison mode.

one of the best duplicate photo finder for Mac PhotoSweeper

Price: $9.99

Platforms: Mac OS X 10.10 or later

Duplicate-finding algorithm: unrevealed


  1. Supports photos and videos
  2. Compatible with Photos, iPhoto, etc.
  3. Supports external storage devices


  1. Requires learning curve to utilize its features

#4 Duplicate Photos Fixer Pro

You can use this duplicate photo finder for Mac to easily find duplicate pictures in folders and Photos (iPhone) app on your Mac. In addition, it also has the ability to detect images that are almost identical. It also supports other platforms including Windows.

The interface is loaded with settings and options, which seems a bit overwhelming for new users. By default, this duplicate photo finder will look for similar photos in the chosen folders on your Mac. If you only need to find files that are exactly the same, then go to the upper right corner and select the option Exact Match. To set minimum file size for scanning or exclude specific file formats, just go to the top menu bar, select Preferences and click Filter & Sort.

Duplicate Photos Fixer Pro excels at detecting the similarity between images. Also, it scans fast. However, it’s not that good when it comes to preview. The Preview window is too small for you to see the details of a photo. Also, there isn’t a zoom option. Despite this drawback, its fast scanning and great ability to find identical images still make it one of the best duplicate photo finder tools.

duplicate photos fixer pro

Price: $18.99

Platforms: Mac OS X 10.7 or later

Duplicate-finding algorithm: unrevealed


  1. Fast scanning
  2. Supports all common image formats
  3. Can also find similar photos
  4. Multiple filtering options


  1. Poor preview performance

#5 Photos Duplicate Cleaner

Photos Duplicate Cleaner a free-to-use duplicate photo finder Mac users can install and use. It helps you effectively manage and organize the photo collection on your Mac by finding duplicate photos and removing them safely in a few clicks. This duplicate photo finder for macOS scans for duplicate photos from a selected drive or folder on your Mac. It will delete all duplicate copies while keeping the original one.

The process to scan and compare photos will be very slow if there are a lot of photos in the selected folders. Please be patient in a case like this. Once the process is finished, you can preview and remove duplicates as you wish. If the preview feature isn't useful enough to you, you can right-click a photo and click Open to open it in Preview.

Photos Duplicate Cleaner

Price: Free (feature-limited) & $18.99 for Pro edition

Platforms: Mac OS X 10.7 or later

Duplicate-finding algorithm: unrevealed


  1. Displays all relevant information about a photo
  2. Supports iPhoto and Photos library
  3. Adjustable similarity level


  1. Slow scan when dealing with a large group of photos
  2. Unresponsive “delete” button

#6 dupeGuru

dupeGuru is a duplicate file finder to find duplicate files like music files and pictures on your computer. It is one of the best known duplicate file finders ever. It can scan either file names or contents. The filename scanning mode uses a fuzzy matching algorithm that can find duplicate file names even when they are not exactly the same.

This duplicate photo finder for Mac offers a free version, allowing users to delete 10 duplicates in one time. If you want to delete all duplicate photos and other duplicates in one click, you have to buy one license.

Note: dupeGuru is currently discontinued and not maintained. If you still want to use it, you can download the software from its official website or Github.

free duplicate photo finder for Mac dupeGuru

Price: Free (feature-limited) & $9.99 for Pro version

Platforms: macOS, Ubuntu and Windows

Duplicate-finding algorithm: fuzzy matching algorithm


  1. Easy to use
  2. Offers three scanning modes
  3. Supports real-time scanning results


  1. Discontinued, only supports macOS 10.12 and older
  2. No instant preview available

Comparison table of the 7 best duplicate photo finders for Mac

  Price Supported Files Pros Cons
Cisdem Duplicate Finder for Mac $29.99 for lifetime license Photos, videos, music, documents, etc.

Multiple scan filters, support for Photos, side-by-side preview, Auto Select & 1-click deletion

Can't save scan results
Easy Duplicate Finder $39.95 for 1-year subscription Photos, videos, MP3, documents, etc. Multiple scan filters, modes and sorting options Poor preview performance
Duplicate Photo Cleaner $39.95 Photos 2 scan modes, multiple removal options, useful sorting feature Slow scanning
PhotoSweeper $9.99 Photos Support for Photos and external storage devices A bit overwhelming for new users
Duplicate Photos Fixer Pro $18.99 Photos Multiple filtering options, 2 scan modes, Auto Mark Poor preview performance
Photos Duplicate Cleaner $18.99 for Pro edition; free (feature-limited) Photos Decent preview feature, support for Photos and iPhoto Complex interface, slow scanning
dupeGuru $9.99 for Pro edition; free (feature-limited) Photos, documents, video and audio 3 scan modes, real-time scanning results No instant preview, no further updates


This article lists the top 7 duplicate photo finders Mac users can choose from. They can help you remove the necessary copies of the same photos. Some of them can even find similar images with customizable similarity measure. Give the best duplicate photo finder a try, delete the duplicate photos on your Mac with ease, and make more room for your new pictures!

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13 Comments Leave a Reply

  • Ferser98

    Awesome. Cisdem duplicate photo finder really helped me deleted duplicate photos in minutes.

    2 years ago REPLY
  • valentine

    Why does it ask me for a code before deleting and where do I find the code

    2 years ago REPLY
  • Rosa Reyes

    Hi, valentine, some of these duplicate photo finders listed in this article are not free, you need to buy a license before deleting. Free trial version only allows you to find duplicates.

    2 years ago REPLY
  • Quincy

    I love your article, please keep up the good work.Say goodbye to my duplicate files...

    2 years ago REPLY
  • Diego Mairena

    Hey, Rosa Reyes! Nice name, where are you from? I am Venezuelan. :) Thank you a lot for this post! Most apps did not help me, but the free one kind of did. It is nice to find such in-depth review of these apps, because right now I have a 10,000-items Finder Folder, and I am pretty sure every two of them are duplicates. :P

    2 years ago REPLY
  • Yuki

    Thanks for your share. These duplicate picture finders all have powerful functions.

    3 years ago REPLY
  • Justin


    3 years ago REPLY
  • Joshua

    I tried these duplicate photo cleaner, but one of them couldn't help me find duplicates. What impressed me most is Easy Duplicate Finder and Cisdem Duplicate Finder.They really worked, thanks.

    3 years ago REPLY
  • Melantha

    Manually finding all duplicate photos costs me much time, but a duplicate photo cleaner makes it very easy, thank all software developers!

    3 years ago REPLY
  • Isaiah

    Can Cisdem duplicate finder remove duplicates from external hard drive?

    3 years ago REPLY
  • Rosa Reyes

    Hi, Isaiah, Cisdem DuplicateFinder can find and remove duplicate files from virtually any storage devices like internal Mac hard drives, external hard drives, cameras, iPods, USB flash drives, memory cards, etc

    3 years ago REPLY
  • Noah

    I've tried a lot of duplicate photo finders over the years, but i never found a perfect duplicate photo finder which could satisfy all my needs, but i will keep trying. Thanks for sharing these duplicate photo cleaner for me to try.

    3 years ago REPLY
  • Jasonlee

    Excellent, I tried all the duplicate photo cleaner, but Cisdem Duplicate Finder worked best, I would buy it because I can use it to find and remove all duplicate files including photos, thanks

    3 years ago REPLY