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Looking for the best free duplicate file finder? Here’s a list of the best free apps to find and remove duplicate files.

Easy Duplicate Finder Mac Portable + Torrent Free Download. This software can find and remove duplicate files in seconds. With this tool, you can recover gigabytes of space. Using this software, you can speed up your computer and organize your files. Now, managing duplicate files with Easy Duplicate Finder on your PC or Mac is fast, easy and fun.

Duplicate Cleaner Free. Duplicate Cleaner will find duplicate content of any size or format,. 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. Duplicate File Finder free allows you to: Find duplicate files and folders. Find duplicates in multiple disks and folders in one session. Find duplicates in any folder, disk, mounted folder or storage. Add files, folders and specified files extensions to Skip List. Specify minimal duplicate file size for better duplicate-finding performance.

Generally, there are two types of duplicate file finders. Some of them are comprehensive, with support for all file types such as images, videos and documents. Some are specialized in detecting and deleting only one type of duplicate files, say, duplicate photos. This article will talk about both types and cover OS versions such as Windows 10, Windows 7, macOS 11 Big Sur, macOS 10.15 Catalina, macOS 10.14 Mojave, etc.

The Best Duplicate File Finder for Mac

• Find duplicate photos, music files, videos, documents, archives, etc.
• Find similar images as well
• Identify true duplicate files based on content
• Remove duplicates from Photos, iPhoto, Music and iTunes
• Support Mac’s internal drive, external hard drive, SD card and more
• Can also be used for Amazon Photos, Google Drive, etc.
• Provide 3 preview modes, allowing side-by-side image preview
• Automatically select duplicate files for you to mass delete with 1 click
• Also offer up to 8 selection rules
• Offer 3 removal options: Move to Trash, Move to Folder and Delete Permanently
• Safe and easy to use
• Compatible with macOS 10.10 or later

Free Download

The best free duplicate file finder 2020 and 2021

#1 Auslogics Duplicate File Finder | Windows

Compatibility: Windows 10, Windows 8.1, and Windows 7

License: Freeware

Rating: 4.5

Latest version: 9.0.0.4, released on 02/11/2021

Auslogics Duplicate File Finder is completely free to use. It can find all types of duplicate files such as duplicate images, duplicate videos and duplicate songs. Using intelligent algorithms, it identifies duplicate files by comparing content.

It lets users have control over the process of looking for and removing duplicate files on Windows PC. It offers two scan modes: “Look for all files types” and “Look for these file types only”. Users can also specify file size for scan and choose how this tool removes duplicate files. One can move the unwanted duplicate files to Recycle Bin or the tool’s Rescue Center or delete them permanently.

Finding Duplicate Files Mac App

This Windows duplicate file finder for excels at detecting duplicate files and allows lots of customization. But it’s not flawless. Its preview function is not that useful. Sometimes you need to view files with their associated apps. Also, it is bundled with unwanted extra software. To avoid them, click “Decline” during the installation. Here’s a full review of Auslogics Duplicate File Finder for Windows.

Pros

1. Totally free to use
2. Easy to use with an intuitive, user-friendly interface
3. Fast scanning
4. Support various file types such as photos and music
5. Multiple removal methods
6. Multiple supported languages
7. Also find duplicate files on external storage devices such as USB flash drive
8. Let you effortlessly restore deleted duplicates thanks to its Rescue Center feature

Cons

1. Poor preview performance
2. Installer bundled with unwanted apps

If you are looking for a useful and powerful duplicate filer finder for Windows with a great preview feature, you can try the free trial of Easy Duplicate Finder.

#2 Duplicate Cleaner Free | Windows

Compatibility: Windows 10, Windows 8, Windows 7 and Windows Vista

License: Free and Pro

Rating: 4.5

Latest version: 4.1.4, released on 01/30/2020

Duplicate Cleaner Free supports a variety of file types such as music, images, and documents. Its powerful scan engine ensures high scan speed and the ability to compare files by content. The flexible search settings let you decide how this tool looks for and deletes duplicates.

There are also useful minor features such as scan results export and folder exclusion.

This top-rated free app has three types of scanning mode: “Regular Mode”, “Image Mode” and “Audio Mode”. The latter two modes are available only in the pro edition. The free Regular mode allows you to find duplicates by content, or file attributes, or a combination of them.

Even the free edition of this Windows duplicate file finder provides enough setting options. New users may feel overwhelmed by the array of search criteria and options. Don’t worry. Each feature or option comes with a Help button. Click it to display the help information.

If you are looking for a free duplicate photo finder, you will be pleased to find out that it supports all popular image formats (like PNG, JPEG, TIFF, etc.) and popular RAW image formats (like CR2, RW2, SR2, etc.). It can compare images by exact content, tags and even geographical distance.

The pro edition is called Duplicate Cleaner Pro. The developer releases updates for both editions several times a year to fix bugs or bring new features.

Pros

1. Support multiple file types and formats including RAW images
2. Enough useful features and options even in the free version
3. Various options for finding and removing duplicate files
4. Good at finding duplicate and similar images
5. High scan speed
6. Handy keyboard shortcuts
7. Offer useful minor features such as scan results export and folder exclusion

Cons

1. Not very user friendly to new users
2. Installer comes with components which you may not want

Also Read:8 Best Duplicate File Finders for Mac of 2021: Paid and Free

#3 dupeGuru | Windows, Mac & Linux

Compatibility: macOS 10.12 or later, Windows, Linux

License: Freeware

Rating: 4.5

Latest version: 4.1.1 (for Windows), released on 03/22/2021

dupeGuru is probably one of the oldest duplicate file finders. The app came out in 2004. It used to be a paid app and has been free and open-source since 2010. It offers three modes. The Standard mode supports all common file types. The Music mode only scans for duplicate music files such as duplicate MP3 files. The Picture mode is specialized in looking for duplicate photos.

It lets you add one or multiple folders to scan for duplicate files. When the scan is done, the dupeGuru Results window will open. There, all detected duplicate files will be listed. You can easily sort them by file kind, filename and size.

To preview an image or media file within the app, highlight a file and click the eye icon in the toolbar. Check the boxes next to the unwanted duplicate files. From the top menu bar, select Actions > Send Marked to Trash. These duplicates will be moved to Trash. You can also choose to move them to a specific folder of your choice.

The best free duplicate file finder for Mac offers a rich set of features and options to help basic and advanced users to deal with duplicate files and customize the process.

Pros

1. Free to use and open-source
2. Support all popular file types and formats
3. Offer three modes to handle different file types
4. Provide multiple scan types
5. Allow you to scan one or more folders at once
6. Can ignore small files to improve scanning efficiency
7. Enable you to save scan results for later use
8. Let you preview image, audio and videos files
9. Offer multiple ways to remove duplicate files
10. Highly flexible and customizable

Cons

1. Crash when scanning an entire drive
2. Limitedly useful preview feature
3. No support for Mac Photos app

#4 Ashisoft Free Duplicate File Finder | Windows

Compatibility: Windows 10, Windows 8/8.1, Windows 7, Windows Vista, Windows XP, both 32 and 64 bit

License: Free and Pro

Waves complete 8 mac free. Latest version: 8.1.0.1

Rating: 4.0

Ashisoft Duplicate File Finder can compare files byte by byte, so it can find true duplicate files regardless of filename. It has a free edition and a pro edition. Both allow you to look for various types of duplicates such as duplicate music files, pictures and videos.

The interface is simple and easy to understand even for new users. It displays options and actions for users to take. You can choose to identify duplicates by byte-by-byte comparison, the SHA-1 algorithm or file properties. It provides multiple search filters, duplicates marking options and removal options. You can also exclude folders for scanning, which is a safety feature to prevent accidental delete. Its ability to find duplicate music files is also worth mentioning. This duplicate file finder for Windows 10 (and other versions) can measure and identify similarities between songs by content or by ID tags like title, album and artist. If you choose to find duplicate music by content, the app will ignore these tags and only focus on file content.

The free version only provides basic features and options, which may be enough in many cases. To have access to advanced features (such as support for Google Drives), you need to upgrade to the pro edition. Its ability to find duplicate files is slightly lower than that of some similar tools such as Auslogics Duplicate File Finder.

Pros

1. User-friendly interface
2. Multiple supported file types
3. Can identify duplicates by content
4. Multiple options for scanning, searching, filtering, etc.
5. Excels at finding duplicate music files

#5 Fast Duplicate File Finder | Windows

Compatibility: Windows 10, 8.1, 8, 7, Vista, XP, NT, 2000, 2003, all Windows Server operating systems

License: Free and Pro

Rating: 4.0

Latest Version: 5.9.0.1

Fast Duplicate File Finder is fast and powerful when it comes to searching duplicate files in folders and subfolders on PC. It is particularly useful if you have duplicate files with different names. This tool has many nice-to-have features, such as options to manage duplicates, the ability to preview files before deleting, and the support for external devices such as USB drives, external hard drives and SD cards.

Its Pro edition allows you to find similar files, export scan results and exclude folders for scan. If the free version can’t satisfy what you need, you can pay $39.95 to buy the Pro version. The comparison table below will show you the differences between the free and professional editions.

Pros

1. Look for duplicates by content or file properties
2. Can find duplicate images, documents, and media files
3. Can also find similar files (Pro edition only)
4. Allow users to preview files
5. 2 removal options
6. Useful features such as auto-check and renaming files

Cons

1. No filtering options in the free version
2. Relatively slow scanning

#6 Duplicate Manager | Mac

Compatibility: Compatibility: macOS 10.7 or later, including macOS 11 Big Sur

License: Free and Pro

Rating: 4.0

Latest version: 1.3.9, released on 02/05/2021

I recommended Duplicate Finder & Remover for Mac users. It is not officially available now, so I replace it with another great free Mac duplicate file finder called Duplicate Manager.

Thanks to its support for all file types, this app can locate all types of duplicate files such as songs, photos, movies, videos and documents. It offers multiple comparison modes. The default mode is Checksum, which scans your computer for exact duplicates.

With the convenient preview feature, it’s easy to preview and examine the found duplicate files. You need to select duplicates to delete. Clicking the Auto Select button will automatically select the duplicate for deletion, but it only applies to one group of duplicates at a time. You need to upgrade to the Pro edition to be able to apply to all.

This free app has the essential features that duplicate file finder software should have. It does a good job of remove duplicate files from Mac’s folders. When it comes to duplicates in Mac’s Photos app, it won’t help. For this task, you need a duplicate file finder safely designed for Mac’s Photos.

Pros

1. Free to use
2. Find all types of duplicate files
3. Come with a simple and straightforward interface
4. Offer different modes to compare files and identify duplicates
5. Useful preview feature
6. 2 ways to remove duplicates: moving to Trash or delete instantly
7. Highly customizable

Cons

1. Can’t mass delete duplicates
2. No support for Photos

#7 Anti-Twin | Windows

Compatibility: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP

License: Freeware, for personal-use only

Rating: 4.0

Latest Version: 1.8d (2010)

This portable free duplicate file finder is lightweight and useful, allowing you to find duplicate files on Windows PC by file content or by filename. Users can accurately find both identical and similar images, thanks to its ability to do pixel-based image comparison.

There are two comparison methods: Compare names and Compare content. The latter is recommended, but note that scanning for duplicates by content will take a longer time. With both methods, you can adjust the matching level. You can directly delete the unwanted duplicate copies or send them to the recycle bin.

One of the great things is that it can also find duplicate files in shared network folders, which requires decent network connection. This free duplicate file remover does allow you to preview images, but it will open a separate window, which can be inconvenient.

Pros

1. Portable
2. Supports local hard drive, external devices and network folders
3. Supports common file types and formats
4. Can find identical or similar files with adjustable matching levels
5. Can compare files by content or by filename
6. 2 removal options

Cons

1. Limited search filters
2. Relatively low scan speed

The best free duplicate photo finder Windows 10

Awesome Duplicate Photo Finder

Compatibility: Windows 10, 8, 7, Vista, XP, 2000, 2003 Server

License: Freeware

Rating: 5

Latest version: 1.2, released on 04/09/2021

It’s a free yet powerful software program designed for photo deduplication. The freeware offers the following main benefits.

• Simple, easy-to-understand interface
• Lightweight with a download size of only 1.2 MB
• Detect both exact duplicate photos and similar ones
• Support 5 common image formats like PNG, JPG and TIFF
• Support CR2 - Canon RAW files
• Allow you to scan multiple folders at once
• Work with internal and external hard drives, memory card, and more

This excellent free duplicate photo finder has been around for more than 10 years and has gone through four upgrades. Version 1.2 added support for CR2 RAW images. It contains no adware or malware and is safe to download and use.

It has all the basic functions that a duplicate photo cleaner should have. The support for all popular image types makes it useful in most cases. One of the great things is its ability to find the resized pictures. Resized photos are the same in photo content but different in size. With this app, you can easily find them out and quickly remove the unwanted versions.

If your purpose is to get rid of relatively large images to free up space, you can exclude small image files from scan so as to reduce scan time. There is an option allowing you to do the exclusion. If you want to eliminate dupes and better manage your photo collection, it’s recommended to scan all images in the target folder or drive.

Guide and tips: How to use free duplicate file finder software

Duplicate file finders may vary in performance, usability, capabilities and supported platforms, but they are likely to work in a similar way. Here we will take the best free duplicate file finder for Windows as an example and show you how to use such software to get rid of duplicates on Windows and free up hard drive space.

Step 1. Add folders to scan. Add folders, subfolders or drives (partitions) to scan for duplicates files.

Step 2. Set scan and removal preferences. It lets you find duplicates of all file types or of only certain file type(s) such as images and audios. Specify file size range if needed. Choose a preferred removal option. Click the Search button.

Find Duplicate Files Mac

Step 3. Preview. Ashampoo winoptimizer free chip. Previewing allows you to better known the files you are dealing with. Dolby atmos apk. If the preview feature is not that useful, you can open and view files with associated apps. You can also sort groups of duplicates by name, type and size.

Step 4. Delete. There are multiple selection options available. Click the dropdown list to choose one. Click Delete Selected Files to remove the unwanted copies in the way you prefer.

Mac Remove Duplicate Files Free

Tips

These tips are applicable regardless of the duplicate file finder or operating system you use.

• Back up your files first It’s not necessary but is a good practice before you perform any file cleanup actions. You can make a backup on a different drive or use cloud storage.
• Exclude important folders If you want to scan your entire hard drive for duplicate files, it’s recommended to exclude important folders and system files for scanning.
• Make the most of customizable options All good duplicate file finders have multiple filter and action options. They can help improve efficiency and avoid file deletion by mistake.
• Remove files in safe manner Choose to move unwanted duplicates to the Recycle Bin (or Trash) or a rescue center (if available). This way you can easily recover files that have been erased by mistake. In addition, if you are a Mac user and want to get rid of the duplicates in Photos, make sure you use software safely compatible with Photos.

Best Mac Duplicate Finder

Conclusion

The duplicate file finder freeware is generally not as good as the paid counterpart in terms of capacities and performance, but sometimes they are already useful enough. Some of the apps on our list of the best free duplicate file finder software are freeware. Some also have paid editions which have more advanced features. There are also a few decent open-source apps. However, they haven't been updated for years. Therefore, they are not included in this list. If you are also a Mac user or plan to switch to Mac, you can use the best duplicate file finder for Mac for duplicate files cleanup.