Top 3 Ways on How to Search For Duplicate Files on Mac

It is like looking for a needle in a haystack if you want to manually search duplicate file on Mac. Let us make it very clear again: the task is close to impossible. Because we cannot find the only value to identify which are duplicates of the original file. But it is also necessary to search duplicate files on Mac, and to delete then to free uo more space.

On the other hand, these files get stored on Mac hard drive can ultimately slowing down the device. The situation may get worse and cause errors to pop-up, resulting in a system shut down. So, you need to delete these duplicate files from time to time. You can check out the article below to know the most effective ways of detecting duplicate files.

4 Reasons You Need to Search and Delete Duplicate Files For Efficient Computing

There are mainly 4 reasons you need to search and delete duplicate files on Mac. As the title describes, it will provide you with efficient computing experience. Let's look at the reasons.

Get More Disk Space

Over the year, the running of your Mac can create many duplicates especially the similar photos on your computer. These files usually is the main reason why you are low on disk space. In this situation, the device will slow down and act erratically. So, it is recommended to clear up some space but deleting unwanted duplicate files.

Well-Organized Data

To search and delete the duplicate files on your Mac can make the files be properly organized. A well-organised Mac performs fast. So, if you delete the said files, it will boost the Mac performance.

More Speed & Productivity

We know that too many duplicate files on Mac can decrease the performance greatly. Mac will perform faster, and the productivity will be increased by searching and deleting the duplicates on youe Mac.

Data Security with Cost Saving

More importantly, it is cost saving. Usually, users take their slow and defective Mac's to the Apple support center for service because they don't know duplicates can be a big reason for Mac's low performance. In some cases, the user even had to change the device due to performance issues.

But if you could delete the duplicate files from the device, you wouldn't have to go through all that. Now, we are going to introduce the ways to search the duplicates on your Mac.

Way 1: Search For Duplicate Files on Mac With Finder

The first method we are going to introduce is simple. You will be able to locate duplicate files on Mac via Finder.

The steps are pretty straightforward. Here's how to search for duplicate files:

Step 1: Launch Finder on Mac. Go to 'Apple Menu' and click on 'File'.

Step 2: Choose 'New Smart Folder' from the drop menu.

Step 3: Click on the Plus button at the top right corner of the panel and choose the search parameters. Click on 'Others'.

manually find duplicates

Now a list will be displayed on the screen with all the duplicate files that fit the parameter selected by you.

Way 2: How to Search Duplicate Files on Mac with Terminal Command

You can also search for duplicate files Mac via Terminal command. If you can type proper command on this window, the Terminal command will start looking for the duplicate files.

Step 1:Launch Terminal on Mac.

Step 2: Then, navigate to the folder you wish to scan using cd command. Then, type the following command;

find . -size 20 \! -type d -exec cksum {} \; | sort | tee /tmp/f.tmp | cut -f 1,2 -d ' ' | uniq -d | grep -hif - /tmp/f.tmp> duplicates.txt

After typing the command, hit enter.

Now, a text file will be created. It contains all the list of duplicate files.

Way 3: Easily Search Duplicate Files on Mac with the Help of Professional Tool

Well, using Finder and Terminal to search and delete duplicate files is useful. But there are certain limitations.

The main issue with Finder is that users have to delete the duplicate files among all other different data. So, without proper knowledge file deletion is very risky. There is the possibility of deleting other important files that may damage the OS.

Now, the Terminal overlooks a lot of duplicate files most of the time. So, it won't be very effective. But it is also very laborious. You have to separate the duplicates from the original, and only then you will be able to delete them.

So, it will be best to use an effective duplicate searcher program for the deletion of such files on Mac. We have a program in mind, and it is called iMyFone Umate Mac Cleaner. The program is equipped with several features and deletion of duplicate files one of them. Here, look at its advantages:

  1. The program can find the duplicates accurately by identify the only value of each files.
  2. Provides safe removal of duplicated files and professional knowledge is not needed.
  3. It can smartly keep the original file for you after deleting.
  4. You can delete the duplicates in bulk or by single.
  5. It classify the duplicates to Image, Audio, Video, Archive or other documents.
  6. There is a preview feature which is very helpful.
  7. The operational procedure is effortless.

So, let's go through the guide to search and delete the duplicate files via iMyFone Umate Mac Cleaner. Here's how to search for duplicate files on Mac:

Step 1: Download and install Umate Mac Cleaner, then launch.

Mac version

Step 2: Select, 'Delete Duplicate Files' option and choose a partition to search for the deleted files. Click 'Scan' to proceed. Then the app will search all the duplicate files on your Mac, the process can be finished quickly.

scan for duplicate files

Step 3: After the scan is completed. All the original files, along with their duplicates, will be displayed on the screen. Choose the duplicated files and click 'Delete' to erase them.

delete the duplicate files

This is the safest, quickest and most effective way to search and remove the duplicate files from your Mac.


So, the searching of duplicate files is necessary for the sake of your Mac. But the official ways are faulty and risky as well. So, we have provided the most effective and safe method of duplicate file searching and removal. The procedure involves the use of a 3rd party program called iMyFone Umate Mac Cleaner. Go for it!

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