Add individual or multiple folders to find duplicate files.



Sort duplicate files into 7 categories to show detail information.



Delete duplicate files on Mac in desired ways.

Scan Any Files at Anywhere

Scan files wherever they are. No matter scan the individual or multiple folders in internal and external hard drive, but also the duplicates or similar in Photos and iTunes.

Scan files whatever they are. Among the folders you added, the Mac duplicate finder can find duplicate pictures, documents, videos, music, archives, packages as well as similar images.


Check Duplicates and Similar Smartly

Compare the duplicates files and similar images in list, thumbnail or info views.

Cisdem Duplicate Finder smartly selects the duplicates automatically, and you could choose to select the newest or oldest etc. files to delete.

It also supports to check the duplicates of different categories and sort the duplicates by name, size, count, and type or search file by keywords.


One Click to Delete All Duplicates

Auto-select the duplicates or similar images. Delete them by one click.

Real-time Calculation: Accurate how many files and the total size of them will be deleted timely according to the files you select.

Safe Deletion: Automatically delete duplicates or similar images to trash, but you can change to move them to folder or deleted them completely.

Always Keep Your Mac at Its Best with Duplicate Finder Mac

Duplicate Finder for Mac

Quickly dig out totally same content with HASH technology. What can find and delete true duplicate files on Mac, including duplicate documents, images, music, videos, archives, packages, and etc.

Similar Images Finder for Mac

Keep the best picture among many similar images after continuous shooting. The Mac duplicate finder helps you find and shred the similar images no matter from the external/internal drive, even the similar images in Photos.

Photos & iTunes Duplicate Remover

Except delete the duplicates from the external and internal hard drive, Cisdem Duplicate Finder for Mac also supports to scan the duplicates in Photos and iTunes.

Free up Space of Mac

Duplicate files serve no purpose but make your Mac run slower. The Mac duplicate finder could find and delete duplicate and similar files quickly to make your Mac run faster.

Other Features of Duplicate Finder for Mac

Powerful Scanning Engine

Precise detection of duplicates via MD5 value checksum algorithm.


When scanning you can stop at any time, it'll show the instant result.

Smartly Select

Support to smartly select, select the oldest, newest and unselect all.

Full Screen

Support full screen so you can locate and preview duplicate files in ease.

Quick Search

Easily find duplciate files with the built-in search feature.

Exclude Lists

Blacklist certain folders to ensure they are never scanned.

Size Setting

Specify the filter depending on the duplicate size.

macOS High Sierra Support

Compatible and optimized for macOS High Sierra!

  • add files
  • settings
  • scanning results
  • pie chart showing
  • search
  • preview
  • preferences
  • fast removal
Macdownload Review - 1 Macdownload Review - 2

"Providing smart scanning algorithms, the program has the ability to find true duplicates based on file content...The utility has a simple, clear-cut, and intuitive interface..."

Techtudo Review - 1. Techtudo Review - 2.

"The Cisdem Duplicate Finder is a lightweight program and its operation is basic but efficient. The app provides detailed information about the free hard disk space..."

Macsoftreview Review - 1. Macsoftreview Review - 2.

"Cisdem Duplicate Finder does what it claims. It finds all your duplicate files fast. Really fast. The results are presented and sorted in file type..."

Best duplicate file finder Mac

Cisdem Duplicate Finder for Mac

It's amazingly fast, accurate and a breeze to use. Let the Mac duplicate finder free up your Mac that cluttered with duplicate files NOW!
Free Download For macOS 10.10 or later
Buy Now

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