Best Mac Duplicate Finder

Best Mac Duplicate Finder

Drag or Add folder/hard drive to scan. DuplicateViewer will quickly find and automatically list all identical files in the folder or hard drive. You can easily remove the duplicates to free up precious disk space.

  • Supports to scan both folder and entire hard drive.
  • At least one instance of every file will be kept safe.
  • Preview the duplicates before you remove them.

Find and Remove Useless Large Files

Large files take up a great deal of disk storage space on your Mac. DuplicateViewer Large File Finder will scan your folder or hard drive to find and list all the files depending on the file size. You can easily remove the useless large files on your Mac to save disk space.

Find and Remove Useless Large Files
DuplicateViewer Menu Bar

Quickly Visit Mac Hard Drive or Folders with Menu Bar

After you install DuplicateViewer, it will produce a Menu bar on your Mac. The Menu bar will list all the hard drives and storage devices on your Mac. You can see the disk information including the disk size and free space size. You quickly access to the hard drive or file folder with Menu bard by double clicking the drive or device.

Duplicate File Cleaner User Guide

DuplicateViewer is an easy to use duplicate cleaner tool. You can delete all duplicate files by 1 click.

Reliable Duplicate Finder, Trusted by 200,000 Users

Check what our users say, you will love this duplicate finder application.

duplicate finder User


I give DuplicateViewer full star rating. It is very easy to use and secure. After running it on my Mac, I easily can remove the duplicates and large files.

duplicate finder User

Han Luo

"I love this app. It helps me remove more than 5GB useless files on my Mac. The OS X is running faster and I get more free disk space.

duplicate finder User


DuplicateViewer not only can remove duplicates, useless large files, but also let me easily visit the hard drive like on Windows through menu bar.

Tech Specification

  • Supported OS: macOS 14, macOS 13, 12, 11, 10.15, 10.14, 10.13, 10.12, 10.11, 10.10, 10.9.
  • Chips: Intel-based chips, Apple T2 Security chips, Apple silicon chips.

Frequently Asked Questions

  1. Download and install DuplicateViewer on Mac.
  2. Drop folder or drive to scan.
  3. Find the duplicate files, preview them.
  4. Delete the files you will not need.

Yes, DuplicateViewer is fully compatible with Apple silicon Macs, such as MacBook Air, MacBook Pro, iMac, Mac Studio, etc.

Yes, DuplicateViewer is 100% software. It will not delete anything until you say YES.

Yes, if you will sell or donate your old your Mac, you can download DuplicateViewer on your new Mac, then use your license key to activate it to full version.

If you want to delete duplicate files, large or old files, remove system junk, uninstall unwanted can try MacClean360, an all-in-one tool to help you clean up and optimize your Mac.

Tips & Tricks

How to Remove Duplicate Files on Mac

Identical images and documents take up GBs of disk space on your Mac. Now, follow this guide find and delete useless duplicate files on Mac and regain disk space.

Top 5 Duplicate Finder for Mac

Here is the list of top 5 duplicate finder software to help you scan your Mac system, find the duplicate files and quickly delete them by only 1 click.

Find and Delete Duplicate Images on Mac

There are lots of images and photos stored on your Mac. Some of them are the same. Just find and delete the duplicate photos from your Mac to free up disk space.

Check Free Disk Space on Mac

Check free disk space on your Mac. Then you can use these methods to delete junk data and useless files from your Mac to get more free disk space.

Choose Right File System for External Drive

What is the best file system for external hard drive on Mac? Here, you can learn the file systems and know how to choose a file system for external disk.

How to Delete Caches on Mac

You can delete caches on Mac by yourself, or download a cleaner software to scan your Mac system, find and delete the useless caches on your Mac.


Find and Delete Duplicate Files on Mac

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