How to Find and Delete Duplicate Files on Your Mac

Duplication of files can eat up your Mac’s free space. Although most of the times it doesn’t happen intentionally, duplicate files can cram up space and run over your Mac pretty fast if you’re not clearing them out occasionally. If you are a writer, coder, designer or someone who works with multiple versions of a file over a short time, you might find your Mac inundated with duplicates (or near duplicates.)

The process of finding and deleting duplicate files is time consuming if one has to do it manually. However, there are many online services/apps that can help you if you to delete the duplicate files in auto mode.

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How to Find and Remove Duplicate Files on Mac

Also Read: How to Free-up Space on MacBookAir, MacBookPro and iMac

In this article, we’ll how to use “Duplicate Detective” app to find and delete your duplicate files. Here is how to use Duplicate Detective app on your Mac:

Step 1: Download Duplicate Detective for your Mac (This app is on sale right now (at the time of publishing this article) and you can purchase it for $ 2.99.)

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Step 2: Run Download Duplicate Detective

Step 3: Drag the “Macintosh HD” icon on your desktop inside the app. If you do not have its shortcut on the desktop, you can find Macintosh HD by launching “Finder” from the dock on your Mac. (also, depending on your Mac, your drive might have a different name.)

Step 4: Click “Start Scan.” (If you have chosen to clean up entire Mac, the scanning process might take some time. You can always select the drives that need cleaning.). The app will scan the folder.

Scan for the Duplicate files on Mac

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Step 5: After the scanning process is done, you will see a window displaying the information about how many files were scanned, how many duplicates were found and how much free space can be gained by clearing out the dupes. Click Next.

Duplicate Files Detection in Mac

Step 6: You will now be taken to the place where the duplicates are stored. Select the duplicate files and press Next on the bottom right.

Find and Remove Duplicate Files on Mac

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Step 7: A confirmation window will popup up seeking to validate your selection. Click Clean.

Step 8: Your duplicate files will be deleted forever.

Jignesh Padhiyar
Jignesh Padhiyar is the founder of who has a keen eye for news, rumors and all the unusual stuff that happens around iPhone and iPad.


  1. i am using “DuplicateFilesDeleter”. Its so awesome to find duplicate files on your system and delets the. its so easy and user friendly software.


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