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Dropbox cloud storage is a very popular file-sharing service. Files can easily be kept online for any length of time, resulting in an accumulation of various files. Over time, your Dropbox account may have lots of useless files, including duplicates. In this post, we will explain how to find and delete duplicate files in Dropbox on a Mac.


1. How to find duplicate files in Dropbox using the website
2. How to find duplicate files in Dropbox using Finder’s Smart Folder
3. How to find duplicate files in Dropbox using Duplicate File Finder

Dropbox separator

Find and Remove Duplicate Files in Dropbox Using the Website

Since the Dropbox app is basically used to share files, it has limited options in searching for duplicates. In general, duplicates are files that have the same name, size, type, and binary data. Occasionally users rename a copy of a file for different reasons, so duplicate files may have different names. However, even when two files have the same title, it does not mean that they are duplicates.
If you want to find duplicate files using the Dropbox website, take the following steps:

  1. Log in to your Dropbox account.
  2. Select My Files. At the top of the list of your items, you can see several criteria that you can use to sort your files. As we mentioned earlier, duplicate files have identical size and extension, so choose these criteria to find useless copies in Dropbox.
  3. My Files section in Dropbox account

  4. By default, your files are arranged by name in alphabetic order, so you can try to detect duplicates by their title, size, and type. If you keep files in folders, you should open each folder, sort items and then, find duplicates. Once you have detected some files with the same size and extension, check them for identical content. If they are just copies, select the unneeded files and click on Delete in the menu on the right.

Dropbox account with Delete button highlighted
You can also mouse over the useless copy and click on the ellipsis next to it. Then, select Delete from the pop-up menu.

Dropbox account showing drop-down menu

Unfortunately, this method is time-consuming and you may misunderstand different files for the same. Even if the name, size, and type of files are the same, this does not guarantee that they are duplicates and have absolutely identical data. Dropbox has an inaccuracy, as it rounds the value of a file, making two files seem identical even while the file size may differ just by one byte.

Find duplicate files in Dropbox using Finder’s Smart Folder

If you use the Dropbox desktop app on your Mac, try to find duplicates via the smart search in Finder. For this, complete the following steps:

  1. Open Finder → in the sidebar, select Dropbox.
  2. In the menu bar, click File and select New Smart Folder from the pop-up menu.
  3. In the right corner under the search line, click Add (+) → in the field that appears, choose Kind in the left field and Document in the right field to sort items.
  4. Document selected in drop-down menu of Smart Folder

  5. Select “Dropbox” to view all your Dropbox files.
  6. Dropbox selected for Smart Folder
    This Finder search option allows you to sort items by name and kind among all your Dropbox files. You can also change the search criteria to Image, Movie, Music, PDF, or Text to narrow your search query.

    For instance, if you want to delete duplicate photos in Dropbox, you should change the search criteria. To find duplicate files in Dropbox, within the Finder’s Smart Folder, change Document to Image → select the extension type (JPEG, PNG, GIF, etc.) → click Plus to enter additional criteria → select File Size, less or more than, and set the number of kilobytes.

    Selecting file size in Smart Folder
    You can change the search criteria to find duplicate files depending on your content.

  7. To delete duplicate photos or other files in Dropbox, right-click on the unneeded replica and select Move to Trash from the pop-up menu.

Move to Trash selected for file in Smart Folder

Pros of this method are that you do not have to individually open each Dropbox folder, as you can see all your files at once. Cons of this method are the same as for the previous method. Moreover, the searching criteria are limited, and they are not universal for all types of files. You should set various search filters depending on the type of file, which takes time and makes it quite complicated to find duplicate files and folders in Dropbox.

Find duplicate files in Dropbox using Duplicate File Finder

The Duplicate File Finder app is a third-party software tool, which uses three main characteristics to find duplicates: size, type and binary data of a file. Duplicate File Finder will help you to quickly clear Dropbox space by finding and removing all unwanted duplicate files and folders. For this, launch Duplicate File Finder → click Add (+) → select the Dropbox folder → click Scan (▷).
Duplicate File Finder start window with selected Dropbox folder
In the next moment, you will see an interactive diagram with all duplicates files in your Dropbox. In the menu bar of the app, click on Duplicate Files.
Pie Chart mode in Duplicate File Finder
Next, you will see a list of copies and their number on the left side of the app’s window. On the right side, you will see a preview of a file and its path.

    Duplicate Files section in Duplicate File Finder

  • To easily remove Dropbox files from Mac using Duplicate File Finder, select extra copies of files and click on the Review & Remove button. Skim the items you want to delete and click on the Remove button to confirm the action.

Duplicate Files section in Duplicate File Finder

This method automatically detects all duplicate copies of each file in Dropbox. You can also select a type of file to find and delete duplicate photos, videos, documents and other file types in Dropbox. Duplicate File Finder carefully scans all items and compares their data byte-to-byte, so you can be sure that all files detected by the app are absolutely identical.



If you regularly use the Dropbox app for copying and sharing files with your colleagues and friends, it is very likely that you have occasionally downloaded the same files several times. As a result, useless copies of files clutter your Dropbox cloud storage. Therefore, we recommend using a simple Duplicate File Finder program, which perfectly finds and removes unneeded replicas from your Mac or from any external drive, including cloud storages like Dropbox.

Download Duplicate File Finder and use it for free or purchase its Pro version, which has additional features like merging folders, selecting duplicates in particular folders, and even detecting similar folders and similar photos.

Read more about removing duplicates on your Mac

How to delete duplicate photos on Mac
How to find and remove duplicate files in Google Drive
How to find and remove duplicate files on macOS
Duplicate File Finder Pro benefits.

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