How to Find Duplicate Files on Your Offline or Online File Storage Space

Use the Duplicate Finder for Mac feature of Disk Drill to analyze your storage space for extra files that take up valuable space. Duplicate Finder can search internal and external drives to find and delete duplicate songs, videos, images, files, and documents.
Free Download
Upgrade to PRO
Duplicate finder mac
It can be a real pain to manually search for wasted storage space. Storage is often wasted by holding copies of files that aren’t being used. These extra files take up valuable space and eat into your storage potential and machine efficiency. Our Duplicate File Finder makes the menial task of finding wasted storage space simple by locating duplicate files and giving you the option to automatically or manually select and delete unwanted ones.

Install and Launch the App

The Duplicate Finder is one of the many features of Disk Drill. Alongside file recovery, boot imaging, and storage visualization, Disk Drill is an excellent tool for finding and deleting duplicate files for Mac.

To use Duplicate Finder, simply download Disk Drill, within the installation dialog drag it to the Applications Folder, and then launch the app. You are now on your way to saving your storage space.

Once you have the app downloaded, double-click on the downloaded file and proceed with installation. Next, launch Disk Drill from your app menu.
  • 1Download Disk Drill
  • 2Drag to Application Folder
  • 3Launch Disk Drill

Selecting Scan Locations

Once Disk Drill has launched, select “Find duplicates”. From here, you can either choose to drag folders directly into the Duplicate Finder, or you can select “add folder” to browse your machine for the folder you wish to analyze for duplicates.
How to recover deleted partitions on Mac OS X
After the location has been added to the scan list, feel free to add additional locations to save you time and actually compare the contents of multiple folders. Free duplicate file finder mac

Scanning for Duplicate Files

Once your list of locations is complete, select “scan” from the top-right corner of the app. In just a few moments, the Duplicate Finder will analyze your locations and show you a list of each file that has one or more duplicates. Scanning for Duplicate Files

Removing Duplicate Files

Each item now displayed on the app has duplicate versions. By selecting the drop down arrow at the beginning of any given item you will be able to view the location and creation date of each duplicate of the item. You can now remove the copy of the file that is no longer wanted by checking the box on that file’s line and then selecting “remove” from the top right corner of the app. If needed, you may search through your duplicate files using the Search bar located at the bottom-left of the app. Manually deleting the duplicate for each file can be time consuming, so we created three filters to quickly delete many duplicates at once.
Remove duplicate files mac

Quick Duplicate Removal

To quickly delete all of the duplicates, select “auto”, “newest”, or “oldest” from the top of the app. Selecting “auto” will allow the app to quickly decide which duplicate of each file to delete. “Newest” will delete the duplicates created most recently and “oldest” will delete the duplicates created first, leaving the most recent ones intact.
How to recover deleted files on Mac
When using any of these filters, you have the ability to go through and check which duplicate has been chosen for deletion before selecting “remove” to delete the duplicate. Duplicate file finder mac
That’s it! These easy steps allow you to quickly and easily save storage space with free Disk Drill’s Duplicate Finder for Mac OS X.

Better Safe Than Sorry — Why Disk Drill?

In the unfortunate event of data loss, it’s always smart to have a hard drive backup on Mac. Disk Drill is packed with features to make data management easy. It offers a handy solution for almost every situation. You can create a bootable drive for data recovery: simply connect any storage device with at least 2GB of space, then select “Create Boot Drive”. To prevent a physical failure of your storage device and increase your chances of data retrieval, Disk Drill creates byte-to-byte disk backups. Also don't forget to enable Recovery Vault or Guaranteed Recovery for your work data. Your files are important, so why not keep them safe?
Protect Data on Mac

Saving Space is Important

We know that your storage solutions are important to you. Storage is important to us too, which is why we created Disk Drill. If you have any questions, comments, or concerns about Disk Drill, please feel free to contact our Technical Support Staff.
Read on about Disk Drill's data recovery features

Stop wasting your Mac disk space. Remove file duplicates with Disk Drill.

Disk Drill 3
Free duplicate file finder for Mac OS X
Free Download
Upgrade to PRO

Need more info? Check out other How To’s, Product Guides, and our awesome users’ kind words about our work below.

File recovery support center
  • 10+ Million
    TOTAL DOWNLOADS
  • 500,000+
    PRO CLIENTS
  • BUSINESS & HOME USERS
    in 150+ countries

Our Users Say

  • Renzo Tavanti
    Mac recovery software finds deleted files, recovers file data with deep scan or undeletes files with quick scanstrong
  • macworld.com
    Disk Drill 2 is your first and last line of defense for dealing with misbehaving volumes on the Mac, and the Pro version easily pays for itself the first time trouble comes along. Aside from a UI that feels out of step with OS X El Capitan, my only caveat would be to hold off for the forthcoming version 3.0 so your investment will last as long as possible, especially when the Basic version offers sufficient peace of mind today without breaking the bank. J.R. Bookwalter | @JRBTempe
    Read more