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Duplicate File Finder

Professional duplicate cleaner for your Mac. Find and remove duplicate files, duplicate folders, and even similar photos.

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4.8-star rating




Free and Pro version


10 million downloads

The quickest way to find duplicate files on a Mac

byte to byte icon
The most accurate
byte-to-byte results
speed icon
In less than a minute
one click icon
In just one click
select duplicate files

Support of any type of duplicate files

photos icon

Find duplicate and similar photos in the Photos Library

itunes icon

Find duplicate music files in your Music Library

duplicate videos icon

Find duplicate videos and movies with any extensions types


Find duplicate folders, documents, archives, and a whole lot more

Find duplicates in your Home folder, iTunes, Photos, iCloud, Dropbox, Google Drive or any other external disk

How to delete duplicate files on Mac

Three easy steps and the job is done!

external drive

Step 1

Scan any folder, external drive or Photos Library


Step 2

Select unwanted duplicate files, folders or similar photos


Step 3

Remove duplicates or merge folders for organizing files

Best Features of Duplicate File Finder Pro


Find duplicates on any disk, folder, storage

Detect duplicate pictures and similar photos

Find duplicate and similar folders

Merge folders and organize your files

Remove duplicates from Photos Library

Remove duplicates from Music Library


Get smart duplicates Cleanup Hints

Use Auto Select and configure its rules

Find duplicates of any type of files extension

Find duplicates in even hidden folders

Get accurate byte-to-byte duplicates results

Quickly select duplicates in particular folders


Define duplicate files size to be searched

Skip specific folders or file types from search

Recover removed duplicates from the Trash

Detect duplicate music files in iTunes

View duplicates removal history

Configure Autoselect rules



Compare files, whether they are duplicates or not

empty folder

Compare folders, folders and check if they are duplicates


Find similar photos and remove pics with poor-quality


Use the search panel in the list of detected duplicates


Sort detected duplicate files by size, name, or date


Scan multiple Photos libraries in one session

Don’t let useless duplicates take up valuable space on your disk.

Declutter your Mac. Organize your file collections with best duplicate file finder.

Duplicate File Finder app
Scan your Mac hard drive, separate folders, external disks or even several Photos Libraries
  • Choose the drives, folders, or Library collection you want to scan.
  • You can specify the file extension types or even the minimal size of the files to be scanned.
Find unneeded duplicate files and folders
Duplicate file finder find duplicate images
Duplicate File Finder showing the Similar Photos tab
Clean up tons of similar photos. Keep only the best ones
  • Find both absolute duplicate pictures and similar-looking photos as well.
  • Easily compare similar images and choose only the best shots.
Сompare Similar folders and merge them
  • Detect similar folders having both unique and identical files, and tidy up the mess of duplicates, even those located in deeply nested folders.
  • Merge folders – move or copy files from one folder to another.
Scheme showing folders merging
Duplicate File Finder showing the Similar Photos tab
Compare two files and check whether they are duplicates or not
  • Compare two files byte-by-byte.
  • Get proof if the files are the exact duplicates or not.

Remove duplicate files in a safe and convenient way

  • You can decide if the duplicates should be moved to Trash or deleted permanently.
  • You can even set up Auto Deleting of the empty folders which usually remain after the duplicate file and folder cleanup.
  • Finally, you can restore the removed items from Trash if needed.

Duplicate File Finder Reviews


five stars
This app is easy to use and helped me so much! I’m personally not the best at keeping my files organized, but this saved my bacon! I really like the fact that you can scan multiple folders against each other. Fantastic!App Store

Alex Calgony

five stars
DFF has been wonderful in helping me to remove duplicate files after migrating three portable hard drives onto one large disk. It saved me 415GB of file space out of the original 1.9GB.Trustpilot

Eva Williams

five stars
Duplicate File Finder lets you get more free disk space by removing unnecessary identical or similar files and folders from your Mac. It works with a variety of file formats and has a really fast scanning algorithm to find matches.Fixthephoto

macOS 10.13-14Last updated: 15.12.2023
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