Finding Duplicate Files On Mac Free

  1. Duplicate Finder by iMyMac PowerMyMac will be the best duplicate file finder software that you can use to find and remove duplicate files Mac that are stored on your Mac computer. The duplicate finder of iMyMac can scan all your Mac folders like your Downloads, Documents, Desktop and it can detect your duplicate photos, videos, apps, documents.
  2. Audio mode will let you search for duplicate songs by metadata for free, but if you want to compare the actual audio data, you’ll have to purchase the Pro version. Fast Duplicate File Finder. If you’re looking for just finding exact duplicates, then Fast Duplicate File Finder is a good choice. The free version will let you find unlimited.

Open Source Duplicate Files Finder Alternatives. The best open source alternative to Duplicate Files Finder is dupeGuru, which is both free and Open Source.If that doesn't suit you, our users have ranked more than 50 alternatives to Duplicate Files Finder and 15 is open source so hopefully you can find a suitable replacement.

A duplicate file finder is a tool that’s used to find duplicate files on a local computer or corporate network. This tool runs a deep search on your computer to compare duplicate files regardless of the filename. The list of duplicate files can either be removed, copied, or moved.

Duplicate files are a problem not only because they clutter your storage space. But also because they might cause unnecessary lags, especially when the specific file is large. Your computer system doesn’t come with an innate tool to handle these tasks. And it’s close to impossible to manually go through all your folders to pick and get rid of the duplicates.

Without a quality third-party Duplicate File Finder, your only option is running a search for a specific file and manually deleting the duplicates that appear. And not only is the method time consuming but it’s also inconvenient because you can’t do away with the duplicates unless you know the specific files to look for.

In this guide, I will help you find the best duplicate file finders for your exact needs. Let’s go!

Table Of Content

  • Reviews of the 10 Best Duplicate File Finders

Review Summary Table

Note: If you use a small screen you may have to scroll right to see all the columns.

NamePlatformPriceMy Rating
(My #1 Pick)
Gemini 2
Mac OSFrom $19.95
Easy Duplicate FinderMac OS
Windows OS
From $39.95
Duplicate SweeperMac OS
Windows OS
From $20
Duplicate Cleaner ProWindows OSFrom $38
Tidy Up 5Mac OSFrom $29.99
Wise Duplicate FinderWindows OSFrom $24.94

Reviews of the 10 Best Duplicate File Finders

As stressed earlier, having a good Duplicate File Finder is important as it helps to free extra disk space while providing more space for the smooth running of your applications. This tool also speeds up indexing and reduces back up size and time.

So let’s now shed light on some of the best duplicate file finders available on the market today!

1. Gemini 2

Developed by the creators of the renowned CleanMyMac X, Gemini 2 is curated to dredge for redundant files and remove them to free space and enhance your computer’s performance. This software is arguably the best on the market for Mac users, thanks to its multi-purpose function. Unlike regular Duplicate File Finders which focus solely on your computer’s hard drive, Gemini 2 goes the extra mile to remove duplicates from external storage, cloud storage, and network storage. So, sit back and let the software remove the files from wherever they are.

Gemini 2 features in-built smart algorithms that track and retain your choices. The program gives you a range of search options to improve the scan accuracy and enhance the effectiveness of the process. The customization function also allows for precise searching, especially when you have an idea of the specific file you wish to remove. By allowing you to key in the file type, name, file size, and location, Gemini 2 makes the process seamless and effective.

Furthermore, unlike a regular duplicate file finder that searches and automatically remove duplicate files that don’t belong, Gemini 2 provides you with the search results before executing the removal process. And while the software intelligently picks exact duplicates that are identical and with the same weight, the list of the results helps to instill the extra trust before removing the redundant files.

>> Tim’s Pro Tip; When using the software to scan your Mac, we recommend quitting other apps to avoid overheating. Gemini 2 is quite demanding to run concurrently with other apps.


  • It effectively detects tons of duplicates on your Mac
  • It detects similar files on the hard drive, external drives, cloud storage, and network storage
  • Intelligent file categorization makes review extra easy
  • User-friendly and intuitive interface simplifies navigation


  • The ‘gamification’ feature can be distracting

Why Gemini 2 is the Best Duplicate File Finder for Mac…?

Gemini 2 is an intelligent MacPaw’s Duplicate File Finder that boasts of high-end effectiveness and customization. This software intelligently categorizes files into either similar or duplicate to allow for easier review and removal. The multi-purpose software removes redundant files from multiple sources and gives you a list of search results for review after scanning your Mac. It’s also easy to use and features a sleek interface that’s easy to navigate.

2. Easy Duplicate Finder

Easy Duplicate Finder features a powerful build that offers you 10+ scan modes and search methods for advanced file management. With the wide range of scan options, you can specifically search for a given file, which in turn enhances the accuracy of the process. By allowing you to use the file name, size, location, and other particulars, this software dredges and lifts off all the redundant files from your Windows 10 or Windows XP computer without fail.

Unlike regular duplicate file finders, Easy Duplicate Finder gives you the option of either trusting the system or counter checking to verify. After every scan, the software lines up the list of duplicate files found for you to compare them by content. This feature gives you the extra confidence and assurance that you’ll never lose important files on your computer.

Most duplicate file finders on the market are designed to fish out redundancy in your hard drive only. However, for the Easy Duplicate Finder, the job doesn’t stop here but instead moves on to other areas prone to duplicate files. The cloud duplicate file finder effectively weeds our files that don’t belong from cloud storage like Google Drive and Dropbox as well.

During my Easy Duplicate Finder review, I noticed the sleek interface. The intelligent software uses smart technology to identify true duplicates, and not just those of the same type, size, and extension. The Folder Comparison Mode picks one folder and uses it as a master copy to compare others against it.


  • Fast and easy to use user-interface
  • Effectively manages multiple duplicate documents
  • Allows for file comparison by content
  • Intelligent and accurate search engine
  • Scans online storages like Google Drive and Dropbox


  • You have to buy the software to delete more than 10 duplicates

Why Easy Duplicate Finder is the Best Duplicate File Finder for Windows 10…?

This software is arguably the best there is for Windows 10 users. Easy Duplicate Finder features 10+ scan modes and search methods to enhance the personalization and accuracy of the process. The software scans for duplicates in cloud storages and has an easy to use user-interface. This tool also has a restore button to undo accidental file removal.

3. Duplicate Sweeper

Other than being a high-end Duplicate File Finder for Windows 10 and Mac users, Duplicate Sweeper does an impeccable job removing redundant files from the hard drive and cloud storage. Whether its photos, documents, video files, or backup sets, this incredible software will weed them out from wherever they are.

Duplicate Sweeper uses a smart search algorithm to intelligently pick specified duplicates for a swift removal process. Regardless of the file name, duplicates can be identified by comparing the content, which makes the process seamless in its entirety. The software gives you a wide range of scan and search options for a personalized feel and comprehensive cleaning experience.

During my Duplicate Sweeper review, I noticed the handy viewer, which details the duplicate files for a quick and effective comparison. And while the software uses smart algorithms to only flag what doesn’t belong, the preview viewer assures you that you’ll not lose important files during the cleaning process.

The Duplicate Sweeper has a user-friendly interface that’s extra easy to navigate. This Mac and Windows software makes finding, selecting, and removing duplicate files, extra quick and easy. You can choose to either have the duplicates removed automatically, which is faster, or review the results before removing duplicates that don’t belong. The duplicates are moved to the Recycle bin or the Trash, allowing you to restore them in case you accidentally remove important files.


  • Effectively lifts off redundant files even if they don’t have the same filename
  • Fully customizable for a quick and effective scanning process
  • Categorizes search results in groups based on the location
  • Shows a 3D graphical representation of all the duplicates to help you identify the areas with the most redundant files
Remove duplicate files on mac


  • The demo mode does not delete found duplicate

4. Duplicate Cleaner Pro

Regardless of the nature of duplicates your computer might be having, the Duplicate Cleaner Pro knows no boundaries. Whether it’s cluttered folders, images, music, or video files, this software will intelligently pick, compare, and remove duplicate files without fail. For images, the Cleaner picks similar photos which might vary in editing, angle, or size, for you to manually review. The software also scans all popular music file types to identify exact and similar matches.

The software is powerful enough to take on duplicate files regardless of the bulk your PC might be having. It comes packed with brilliant features that strategically take on different locations to enhance precision and accuracy. Through automated selection and advanced filtering, you can dredge for duplicate folders and unique items in zip files for a more comprehensive scanning.

The Duplicate Cleaner Pro gives you the freedom to either carry on with automatic removal of the duplicates or take a few seconds to compare the contents. And though the software employs high-end comparison technology to reduce the chances of accidental removal of files, it’s important to know that you can always have a quick look before removing the files. The handy Selection Assistant brilliantly allows you to review the search results before removing them or moving them to a different folder.

Just like with any other software, the user experience has a great impact on whether or not you stick with the product. The interface makes navigation blissful and also has a restore option in case you accidentally remove important files.


  • Fast duplicate file finder with an easy to use user-interface
  • Great filtering and automated selection
  • Compares content to determine what’s redundant


  • Cannot pause search

5. Tidy Up 5

The Tidy Up 5 is a re-engineered software that offers multiple libraries support to weed out redundant files and free essential hard drive space. The software supports Lightroom, Mail, Photos, iTunes, iPhoto, and Aperture. As one of the best duplicate photo finder for Mac users, the software drenches for all duplicate files and removes them in areas that you probably never thought they existed.

The new generation is fully-featured and powerful enough to take on redundant files. This modern and efficient tool is customizable, allowing for a precise and quick clean up exercise. It provides multiple criteria to search and scan specific items for more in-depth identification and comparison. By allowing you to specifically use the file name, size, and location, Tidy Up 5 makes the process seamless and effective.

This software organizes the search results and categorizes them neatly based on their type (folders, images, music files, videos, and PDFs). The new organizational structure is designed to simplify the review process and is based on tab separation. Each of the tabs has unique settings which include smart boxes, view by grid or list, and search sources.

The Tidy Up 5 comes with two different modes, which are both easy to navigate. The Simple Mode comes with up to 80 different pre-defined smart searches, while the Advanced Mode offers a more customized approach by refining the search criteria. The newly redesigned interface is not only easy to use but also very powerful.


  • Easily and effectively collects duplicates in the Lightroom Library
  • Possibility to handle the search results at the administrator level
  • Powerful and easy-to-use interface
  • Allows you to review search results


  • Couldn’t find one

6. Wise Duplicate Finder

The Wise Duplicate Finder is a duplicate file management tool for Windows 10 that helps you search, identify, and remove redundant files from the system. The software uses intelligent algorithms to compare not only the file names but also the content to enhance the accuracy and effectiveness of the process. It lifts off unwanted files from your hard drive to create more room and discourage unnecessary lags.

Fully Customizable Finder. In the course of going on with your daily work, you probably download loads of images, music, or movies. Right? Well, most of these files are downloaded repeatedly and pile up in your disk space over time. With the improved version of the Wise Duplicate Finder, you can personalize scanning to cover the area you think might have more duplicate. Whether you want to dredge through the images, videos, music, or backup, you can conveniently weed out the unwanted files in a jiffy.

Categorizes the Search Results in Groups. The Wise Duplicate File Finder Windows 10 works not only to identify the redundant files but also to remove them effectively. The files picked are grouped based on their type (folders, images, music, video, and PDFs). Grouping the search duplicate file results makes reviewing swift as you can easily pick what to delete and what to leave.

Sleek Interface with a Dedicated Restore Option. With the Wise Duplicate Finder, you don’t have to worry about losing important files by mistake. The software has a restore function which allows for automatic reversal of the action- bring back all the files in a single click. All this makes Wise Duplicate File Finder one of the best software for finding duplicate files.


  • The flexible tool allows you to select the specific files you want to scan
  • Allows you to easily restore deleted files
  • It allows for the removal of empty files as well
  • Available in more than 25 different languages


  • It’s not possible to save the scan list for future reference

Best Free Duplicate File Finder: dupeGuru

Effective Duplicate File Finder. DupeGuru is a cross-platform GUI tool that searches, picks, and removes redundant from your system to create extra space and avoid unnecessary lagging. The software scans the desired files to pick similar and exact copies based on the filename and content. This tool employs a smart comparison algorithm to pick duplicates even when their names don’t necessarily resemble. The fuzzy matching criteria is fast and only takes a few minutes to generate a comprehensive search result.

Customizable Duplicate File Finder. DupeGuru features fully customizable search engines that allow you to personalize your search to the areas you want. This duplicate video finder allows you to choose the size, location, and other attributes of the files you’re targeting to weed out for a comprehensive and accurate search experience.

It scans music regardless of the format and generates a comprehensive music-related report and promote a swift review. For photos, the tool has a dedicated photo mode that accurately picks photos that are similar and exact and lists them for you to review.

Efficient and Safe Software. When it comes to file filtering, most people are skeptical because of the fear of losing important documents. However, this isn’t a concern you’ll ever have with dupeGuru- the tool is designed with the safety of your documents in mind. After every search, dupeGuru provides a detailed reference directory categorized into groups to help you review faster. All this makes dupeGuru the best free duplicate file finder.


  • It has multiple operational modes and scan types
  • Provides you with a detailed list of the duplicates for review before deleting
  • The fuzzy matching algorithm helps to identify and delete duplicate files
  • Allows you to filter special files


  • During my dupeGuru review, I found the interface a bit old-fashioned

Free Duplicate File Finder Runner Up #1: Auslogics

Smart Matching Algorithm. The Auslogics Duplicate File Finder uses smart algorithms to effectively and accurately remove duplicate files from the system. This high-end software compares both the file name and content to eliminate the possibilities of deleting important files. The smart matching algorithm is also effective as it only takes a few minutes to search, identify, and remove the files to free up extra space in the hard drive.

The Software Grants You Full Control. The Auslogics duplicate file finder is fully customizable and is designed to accommodate different search modes and methods for a personalized cleaning experience. Choose the type, size, and location of the files you wish to scan for a quick and straightforward experience. The patented features make using this tool very easy while enhancing its effectiveness.

Industry-acknowledged Duplicate Files Finder. Developed with the user’s safety in mind, the Auslogics duplicate file finder has been run through multiple tests and given the go-ahead by industry experts. Not only does it use intelligent matching criteria, but it also generates a search result report before deleting for manual review. The search results are categorized into groups based on their type for a more organized and swift review process.

Userfriendly Interface. The software has an easy-to-use interface that renders navigation a bliss. The legendary design does not require technical know-how to maneuver. I found the user experience to be great, considering the software is free with no limitations.


  • Auslogics duplicate file finder scans the computer fast
  • Effectively picks similar and exact files for review
  • Has a user-friendly interface
  • Fully customizable


  • Folder selection is inconvenient

Free Duplicate File Finder Runner Up #2: Alldup

Multiple Search Modes. Alldup boasts of a wide range of search modes and scanning methods to help you weed out redundant files from your computer. The software allows you to search for duplicate files through an unlimited number of files and folders. The multiple search modes also make scanning and find duplicate files accurate and extra fast. So, try out this duplicate file management system that allows you to easily remove the files that don’t belong using either the file content, file name, file extension, file dates, or other file attributes!

Multi-purpose Tool. Downloading music, photos, and other files from the internet is something we have to keep up with every day. Unfortunately, most are the times you download a file multiple times because you can’t locate the other one. Over time, the redundant files pile up and take up your disk space. With Alldup though, all these files can be identified and removed in a single click. Whether its photos, audio, videos, backup sets, among others, this tool will clean up your system effectively

Smart Finder. While cleaning up your hard drive to free up some extra space and boost your computer’s performance sounds good, there’s always a risk of losing important documents. However, this free duplicate photo finder eliminates any possibility of deleting unintended files by using a smart marching algorithm and providing you with a review report before deleting.

Backup and Restore. After searching, the results can be saved for later using Alldup. Also, you can move the redundant files and folders to the recycle bin or a separate backup folder, from where you can review before deciding what to delete and what to keep.


  • Makes it easy to pick similar photos for review
  • Alldup duplicate files finder allows you to select files by date
  • You can ignore EXIF and ID3 tags when comparing files
  • Allows you to select files based on the folder tree


  • I found the software a bit over complex

Free Duplicate File Finder Runner Up #3: Clonespy

Smart Duplicate Finder. Clonespy saves you the hassle of having to dredge for redundant files in your hard drive in a single click. This software uses an intelligent matching algorithm to search, find, and compare duplicate files for a quick and effective removal experience. It will find duplicates that have the same content irrespective of their name, date, time, and location. Regardless of the format, Clonespy finds and removes older file versions and empty files in a jiffy

Allows you to Review the Search Results. Though this free duplicate photo finder employs high-end smart algorithms to weed out redundant files and folders, it also provides you with a detailed report of the search duplicate file results for manual review. The review is very helpful, especially for similar photos that you probably wouldn’t want to delete.

Fully Customizable Finder. With this freeware duplicate file finder, you can do a lot more than finding and deleting duplicates. This software allows you to build checksum files from files on your hard drive and use them to check whether these files already exist on your computer. This not only saves you time in the future, but it also renders the experience straightforward. The tool allows you to replace redundant files with hard links to the retained files.

This free duplicate file finder also allows you to move the duplicates to a different folder from where you can review the results later before deleting.


  • Numerous scan modes and search methods make the process precise and bold
  • Flexible Finder allows you to choose what to do to the duplicates
  • You can use previously imported checksums to compare the files with those in your hard drives


  • I think the user interface could be improved a bit

Best Duplicate Photo Finder: Final Words

To sum it up, Duplicate File Finders is an important addition to your computer to constantly free up extra space on your hard drive and improve its performance. And with the new age where everything is on the internet, we are bound to download multiple files without even noticing, or create several backups in our computers.

These duplicate management tools come in handy as they dredge for any redundant files and folders based on content, time, location, and name. Not only are they effective at doing it, but they are also extra fast and safe.


PS, I recommend that you also look around our site to learn about other online software for small business owners. For example our best Mac cleaner and dr.fone review articles.

Anders is from Sweden but worked over 10 years in Silicon Valley as a project manager, programmer and systems engineer. He started Business Technology Reviews in 2014 and is our main tech guru who produces easy-to-read guides and reviews for his many readers.

While most Macs have a decent amount of storage space, it’s not unlimited. So, you have to be smart about what you’re saving. And duplicate files are only a waste of space. But finding and deleting those duplicates requires an extreme amount of patience or an app that will find those duplicates for you.

Keep reading and you’ll learn how to clean your Mac of duplicates both with an app and manually. The methods you’ll be reading about include:

  • Duplicate file finder app
  • Terminal commands
  • Smart folders in Finder

Why is my Mac duplicating files?

Remove duplicate files on mac

There are a ton of reasons your Mac could be loaded with duplicate files. Maybe you’ve imported the same photos from your camera multiple times and didn’t realize it. Or you couldn’t find a file you were sent, so you just re-downloaded it. Duplicates are a normal part of using a computer, which is why you should regularly check and clean your Mac for duplicate files.

How to find duplicate files on Mac

Over time your Mac is going to fill up and run out of storage space. And most likely, duplicates that take up a good amount of your valuable space. Sure, you can try to sort through all of your files, searching for those duplicate documents, photos, and music files. But if your hard drive is already full, that means you’ve got a lot of files to sift through. And it’s going to take you a very long time to go through them one-by-one.

1. Delete duplicate files with Gemini 2

There are a ton of duplicate finder tools out there, but we’ll take Gemini 2 as an example, because we’re 100% sure it works. Once you have Gemini 2 downloaded and installed, just follow these steps to scan all of the folders on your Mac:

  1. Download, install and open Gemini 2.
  2. Click the + > Choose Customer Folder...
  3. Then, select your hard drive. Unless you’ve renamed it, it’s called Macintosh HD.
  4. Click Scan for Duplicates.

When the scan is over (which doesn’t take long), you get two options: Review Results and Smart Cleanup.

Smart Cleanup means you’ll automatically delete all of the files Gemini 2 thinks are duplicates, leaving the originals in place. While Review Results will allow you to do exactly what it suggests. You’ll be able to see all of your files and select which ones you want to delete.

That’s pretty much all there is to it. Gemini 2 will delete duplicate files in your Photos, Downloads, Mail Downloads, iTunes, and all the other locations on your disk. It’s by far, the easiest and fastest way to find and delete all of the duplicates on your Mac.

2. Find duplicate files with a Terminal

Before you jump into Terminal headfirst, you should only do it if you're comfortable and know your way around Terminal. It’s a powerful tool that can mess up a lot if you don’t know what you’re doing. We’ve tested the steps below and nothing bad happened, but you should still be careful and double check everything you type into the command line.

So, here’s how you search for duplicate files with Terminal:

  1. In Finder, go to Applications > Utilities > Terminal to open it.
  2. Navigate to the folder you want to scan with the cd command. For example, if you want to scan Downloads, type in cd ~/Downloads and hit Enter.
  3. Copy and paste this 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 and hit Enter.

This will create a text file in the folder you’ve specified, with a list of your duplicates inside. But, there are two things you should keep in mind:

  • This terminal command overlooks a lot of duplicates.
  • You’ll still need to locate those duplicate files and sift through them to separate the copies from the originals.

So, this command is more like a crystal ball: it gives you hints, but you still have to go and do the sorting and deleting manually. Which brings us to another option, that will do a little more of the work for you.

Sometimes files won’t be flagged as duplicates because they have slightly different file names. But every file has what’s called an md5 hash, which is a unique identifier that stays with the file. So even if you move or rename a file, it’s md5 hash will remain the same.

How do i find duplicate files on my mac

Similar to the Terminal command above, you can generate a list that shows the md5 tag to verify all of the duplicates in a particular folder. Follow the steps below to create that list.

  1. Open Terminal from the Utilities folder.
  2. For this example, we’ll scan the Documents folder. Type into the Terminal window: ~/Documents.
  3. Copy and paste this code: find ./ -type f -exec md5 {} ; awk -F '=' '{print $2 't' $1}' sort tee duplicates.txt and then hit enter.
  4. Then, open a Finder window and navigate to your Documents folder.
  5. Open the Documents.txt file.

This generates a list of all of the files in the folder you’ve specified, but you’ll at least be able to see the md5 tags to know which files are copies of each other.

3. Find duplicate files on Mac using Smart folders

The truth is duplicate files can live anywhere on your hard drive, which makes finding them that much trickier. But thanks to a feature in Finder called Smart Folders, you can narrow your search down based on specific criteria. Say you want to search all of the documents on your Mac, then you’d follow these steps:

  1. In a new Finder window, click File > New Smart Folder and make sure This Mac is selected.
  2. In the top-right corner, click +.
  3. From the first drop-down menu, select Kind and in the second drop-down, choose Documents. Then, click Save.
  4. A pop-up window will come up, letting you name the folder and choose where to save the Smart Folder.
  5. From there, you can see all of your documents. Click to order the files by either name, size, or date created to help you quickly spot duplicates.
  6. Select the files you want to delete.
  7. Right-click (or hold down Command and click) and then click Move to Trash.

How to locate duplicate files using Smart Folders

While using Smart Folders is a lot faster than hunting through your entire hard drive for duplicate files, it still requires a bit of patience. Manually going through each of your files one-by-one can take some time, even after you’ve narrowed them down.

4. Find duplicate pictures in your Photos library

You move a bunch of new photos onto your Mac, import them into Photos, and start sorting them out. What you probably don’t know is that all of those pics now exist in two copies: one in the initial folder (say, Documents), and one in Home > Pictures > Photos Library. So, the best thing to do is to use the import features in either iPhoto or Photos.

Now, how do you find these duplicate photos and get rid of them? Depends on how much you rely on Photos for viewing and organizing your pics. If you never liked the app anyway and have backups of all pics in other folders, just go ahead and empty the Photos library. Remember two things here, though:

  • Delete your pics in Photos only when you’re 100% sure you have copies of them in another folder.
  • When you delete duplicate files in Photos, they are not removed — just moved to a Recently Deleted folder. Meaning they’re still taking up storage space. So, don’t forget to empty your Recently Deleted folder too.

Find similar photos in Photos

If you are using Photos to store and organize your pictures, keep in mind that it only displays files stored in Home > Pictures > Photos Library. So, if your pics are duplicated, you’ll have to remove the copies that are stored elsewhere. Here’s how you can find them:

  1. In Photos, open the Photos tab to see all your pics sorted by date.
  2. In Finder, open All My Files to view all your pics in bulk, not in a dozen individual folders.
  3. Sort the files by Date Created, so that your pics in Finder are listed more or less in the order they’re listed in Photos.
  4. Now comes the tedious part. Take a group of pics in Photos, created within the same day — say, April 17, 2015. Go to Finder, spot the 2015 section, and find that identical group of pics (they will be located together, so you just need to look carefully).

Repeat step 4 for all the pictures you have in your Photos library. That way, you’ll find and remove the duplicate photos that are stored in other locations, and keep only the pics in your Photos library.

Free Duplicate Finder For Mac

You’ll quickly see how long it will take you to find and delete your photos manually. But if you used an app like Gemini 2, it can do most of the heavy lifting for you. Plus, you’re able to review all of the duplicates Gemini finds or just delete them all with one click. The best part is you can download Gemini 2 for free and see how it works.

5. How to find duplicates in Mail Downloads

Here’s a common scenario: a colleague emails you a document, and you open the attachment in Mail to take a look at it. You’re going to need this file, so you download it onto your Mac for safe keeping. No duplicates, nothing to talk about here. Right?

Not exactly. See, the Mail app has quietly downloaded this attachment the moment you opened it, and stashed it in its very own downloads folder. So, now you have two copies of the same file on your Mac.

The Mail Downloads folder is not particularly easy to find. You really have to know where to look to get to it. Follow these steps to access it:

  1. Open Finder.
  2. In the Menu bar, click Go > Go to Folder…
  3. Type this address:

~/Library/Containers/com.apple.mail/Data/Library/Mail Downloads and hit Go.

This will open a new Finder window where all of your Mail attachments live. The good news here is that there’s nothing to compare or sort. These files are automatically downloaded to make it faster to open the next time you need them. But all the attachments still live on your email server and can be re-downloaded at any time. Meaning, if there’s nothing you would miss, you could empty this entire folder.

How to find duplicate files in specific folders

Find Duplicate Files Mac Free

You can also use Smart Folders to look for duplicates within specific folders. This is particularly helpful in instances when you have multiple folders in a folder. To set up a Smart Folder that searches a specific folder:

  1. Go to the folder you want to search in Finder and click File > New Smart Folder.
  2. In the Search bar at the top of the window, click the folder name.
  3. Click + in the top-right corner.
  4. Set your other search criteria and click Save.
  5. Then, name your Smart Folder and choose where to save it.
  6. Organize your files by name, size, or date created to help you see the duplicates.
  7. Select the files you want to delete and drag them to your Trash.

Best Mac Duplicate File Finder

How to find duplicates of specific file types

Because you set the search criteria with each Smart Folder, that means you can search for specific types of files or files of a certain size. To create a Smart Folder for a certain type of file, like pictures, you can open a new Finder window and follow these steps:

  1. Click File > New Smart Folder.
  2. Then, in the top-right corner, click +.
  3. From the first drop-down menu, select Kind.
  4. Choose Image from the second drop-down.
  5. Click Save.
  6. Then, give your Smart Folder a name and choose where you want to save it.
  7. After it’s saved, you can select the duplicate files, right-click or command-click, and click Move to Trash.

How to find duplicates by file sizes

Delete Duplicate Files On Mac

If you want to only search for files by their size, which is particularly helpful to get rid of larger duplicates, do the following:

  1. Open a Finder window.
  2. In the top right, click +.
  3. Click on the first drop-down to choose File Size. If you don’t see it, click Other… and then search for size, to add it to the menu.
  4. Set your file size criteria.
  5. Then you can click Save, name your folder and choose where it’s saved.
  6. Once your Smart Folder is created, you can select the duplicates, right-click or command-click, and then click Move to Trash.

While Smart Folders are extremely helpful in finding and deleting duplicates on your Mac, it still requires you do a lot of it manually. Which leaves room for error and not to mention how much time it will take you to remove files one at a time.

The alternative to deleting duplicates manually is to use an app Gemini 2. It quickly scans your entire hard drive or individual folders, presenting you with the duplicate files to review. Or you can even choose to use the Smart Cleanup feature, which will automatically delete duplicates and leave the original files in their place.

Hopefully, this article helps you clean up your Mac and remove those sneaky duplicate files that are eating up all of your storage space.

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