Surely you have noticed that it costs very little to fill the hard drive of a computer or laptop with duplicate documents and files. This, in the long run, can negatively impact free storage space and performance.
Finding and deleting all those unnecessary files manually can become an inexhaustible task. Luckily, there are several ways to get rid of all those duplicate documents in a fast, simple and efficient way. We explain how.
Why do duplicate files accumulate on the Mac?
In most cases, the reason we have duplicate files is because you downloaded the same document more than once. Surely you have clicked on a download link twice without meaning to.
Other reasons can be songs that you have added in iTunes without deleting the originals, documents attached to your mail, among many others. It seems inevitable to escape duplication of files on both Mac and Windows.
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How to delete duplicate files on Mac manually from Finder
If you do not trust external applications, you can trust the Finder to find the same files that you saved more than once and then delete them forever. For this you must use the macOS smart folders.
So, click on the ‘File‘ tab in the menu bar, followed by ‘New smart folder‘. Within it, you must click on the ‘ + ‘ icon in the upper right corner and you can search for documents, photos, music or other types of files.
The key is how you organize the results. We recommend ordering them by name, as this should help you find duplicate files with just a glance. Then you will only have to eliminate those that you no longer need.
You will see that it is a simple process, but the truth is that it is not practical. It will take a long time to review all your documents and delete the duplicates, so our recommendation is to bet on a program that does the work for you.
How to delete duplicate files on Mac using third-party apps
There are many duplicate file finders in the Mac App Store that will scan your system and find those duplicate documents that you should remove from your Mac or MacBook to free up space and improve performance.
Most of them offer similar features: the app analyzes your Mac’s hard drive and returns a list of duplicate files next to the original file so you do not make mistakes and know what you should save.
Normally you should pay for the advanced version in which you will have premium features such as deleting duplicate folders, hidden files and similar functions. The price of the paid versions will depend on each software .
One of our favorite apps is Gemini 2: The Duplicate Finder. You can download it for free but you must pay to use its smart cleaner function, which is able to find duplicate files on your Mac as well as on hard drives and cloud services.
Also Read: How to free RAM on your Mac or MacBook