Top 8 Best Free Duplicate File Finders for Windows

2020-03-06 03:26:56 / Posted by Connie Wisley to Utility Follow @ Connie

Looking for the best free duplicate file finder? This article provides a list of top 8 free duplicate file finders of 2019 – 2020 so far.

Some duplicate file finders are comprehensive, with support for all common file types such as pictures, audios, videos and documents. And some only find and delete duplicate photo files. The latter are known as duplicate photo finders. Just as with other types of software, there are free duplicate file finders and paid ones. Here we will focus on deduplication freeware for Windows 10, Window 8 and earlier versions.

7 best free duplicate file finders for Windows

#1 Auslogics Free Duplicate File Finder

OS: Windows 10 (32 or 64 bit), Windows 8/8.1 (32 or 64 bit), Windows 7 (32 or 64 bit)

License: Freeware

Rating: 4.5

Latest Version: (02/27/2020)

Download Link: Download Auslogics Duplicate File Finder for Windows

Auslogics Free Duplicate File Finder it a totally free duplicate file finder that can find duplicate images, audios, videos, documents and some other types of duplicate files. The algorithm it uses to identify duplicate files is unrevealed, but it’s intelligent enough to compare files not only by filename but also by content.

It lets users have control over the process of looking for and removing duplicate files on Windows PC. There are two scan modes offered: Look for all files types and Look for these file types only, as shown in the screenshot below. 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, delete them permanently or move them to the app's Rescue Center.

the best free duplicate file finder for Windows PC

This Windows duplicate file finder for excels at detecting duplicate files and allows 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 comes with bundled software apps which you may not need, which you can choose to not install. Here’s a full review of Auslogics Duplicate File Finder for Windows.

In the recent updates, it improved analytics engine and added German, French and 4 other languages.


  1. Totally free to use
  2. Easy to use with a simple intuitive interface
  3. Fast scanning
  4. Multiple removal options
  5. Multiple supported languages
  6. Supports various file types such as photos and music
  7. Can find duplicate files on external storage devices such as USB flash drive
  8. Has a Rescue Center feature to restore deleted duplicates


  1. Poor preview performance
  2. Bundled with other apps which you may not need

#2 Duplicate Cleaner Free

OS: Windows 10, 8, 7, Vista

License: Free and Pro

Rating: 4.5

Latest Version: 4.1.4 (01/30/2020)

Download Link: Download Duplicate Cleaner Free

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.

Duplicate Cleaner has three types of scanning mode: Regular Mode, Image Mode and Audio Mode. The latter two modes are only available in the pro edition. The Regular mode allows you to find duplicates by content, or file attributes, or a combination of them. Even the free version 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 (search, filter, removal, etc.) 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. Features exclusive to the pro edition include Unique Files Tab, Duplicate Folders Tab, Command Line Parameters, etc. The developer releases updates for both editions several times a year. In the latest update in October 2019, it improved the support for camera RAW images. The support for RAW images was introduced in 2016.

Duplicate Cleaner Free


  1. Supports multiple file types and formats
  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


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

#3 Ashisoft Free Duplicate File Finder

OS: Windows 10, 8.1, 8, 7, Vista, XP, 32 bit or 64 bit

License: Free and Pro

Rating: 4.5

Download Link: Download the free version of Ashisoft Duplicate File Finder

Ashisoft Duplicate File Finder can compare files byte by byte, so it can find true duplicate files regardless of filename. You can use it to look for various types of duplicates such as duplicate music files, pictures and videos. In addition to your PC’s internal storage, it can also work with Google Drive and portable devices such as memory cards.

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.

Ashisoft Free Duplicate File Finder

The free version only provides basic features and options, which may be enough in many cases. To have access to more advanced features, 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.


  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


  1. Poor performance when scanning subfolders

#4 CloneSpy

OS: Windows 10, Windows 8/8.1, Windows 7, Windows Vista, Windows XP

License: Freeware

Rating: 4.0

Latest Version: 3.43 (10/12/2019)

Download Link: Download CloneSpy

CloneSpy is a freeware duplicate file finder which excels at detecting duplicate files on Window 10 and allows enough customization.

Its powerful search engine can find files that

  • have the same content and attributes
  • are identical in content regardless of filename, etc.
  • have the same filename regardless of content
  • are zero bytes long

It allows you to delete unwanted duplicate copies or move them to specific folder. There are also some advanced options for duplicates removal.

The user interface displays almost all the features and options and is easy to understand. However, it's not that easy to use especially for less experienced users. Beginners will have to spend some time getting familiar with how it works.

CloneSpy duplicate file finder freeware

When it comes to a large amount of files or large sized files, this duplicate file finder may scan a bit slow. Also, be careful to uncheck some options when installing because it may install a bunch of adware which will change your home page, default search engine or install unwanted extensions.

The 2019 update added a new minor feature. Users can now exclude subfolders when scanning a folder. It can be useful. You can get the app to skip your important subfolders, which will avoid the deletion of needed subfolders and the files in them.


  1. Can find duplicates by content or by file attributes
  2. Supports multiple file types
  3. Several options to handle duplicate files
  4. Ability to find zero length files
  5. An array of options to select duplicate files


  1. Bundled with potentially unwanted software
  2. A bit complex to new users

#5 Fast Duplicate File Finder

OS: 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:

Download Link: Download Fast Duplicate File Finder Freeware

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.

Fast Duplicate File Finder free version

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.

Fast Duplicate File Finder free vs pro

With the release of the latest version (, the developer added two auto-check options, which allows more flexibility when it comes to mass selecting dupes for elimination. If you need to scan a large amount of files for dupes, it's recommended to upgrade to the new version because the scan speed is considerably increased. And ditto for photographers since RAW images preview is greatly improved.


  1. Looks 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. Allows users to preview files
  5. 2 removal options
  6. Useful features such as auto-check and renaming files


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

#6 Anti-Twin

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

License: Freeware, for personal-use only

Rating: 4.0

Latest Version: 1.8d (2010)

Download Link: Download Anti-Twin

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 finder does allow you to preview images, but it will open a separate window, which can be inconvenient.

Anti-Twin freeware duplicate file finder for Windows


  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


  1. Limited search filters
  2. Relatively low scan speed

#7 CCleaner

OS: Windows 10, 8.1, 7, Vista and XP, including both 32-bit and 64-bit versions; macOS 10.6 - 10.13 High Sierra

License: Free and Pro

Rating: 4.0

Latest Version: 5.63 (10/15/2019)

Download Link: Download CCleaner for Windows

CCleaner is designed to be a cleaning tool. It has a free edition and a professional edition. The Duplicate Finder tool is only available for Windows (for both editions). Launch the app. In the left column, select Tools > Duplicate Finder.

This free duplicate file finder tool is safe and easy to use. It can compare files based on four matching criteria: Name, Size, Modified data and Content. You can set it to ignore certain types of files (system files, hidden files, etc.) when it looks for duplicate files on your PC. You can also set maximum and minimum file size for scanning. There are three ways to select files for deletion. You can select them all, manually select or select a particular type of files.

CCleaner's Duplicate Finder tool

CCleaner is more versatile than a duplicate finding app, but it’s not as powerful as dedicated duplicate file finder software. If there are only a few duplicate files on your PC, this tool is actually enough. You can manually open the detected duplicates, view and delete them one by one.


  1. Can identify duplicate files by content or name
  2. Multiple scan filters
  3. Allows users to exclude folders for scanning
  4. Can also include or exclude system files and hidden file for scanning


  1. No preview feature
  2. Limited removal options

The best free duplicate photo finder for Windows

Awesome Duplicate Photo Finder

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

License: Free

Rating: 5

Download Link: Download Awesome Duplicate Photo Finder

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 MB
  • Detect both exact duplicate photos and similar ones
  • Support 5 common image formats like PNG, JPG and TIFF
  • Allow you to scan multiple folders at once
  • Work with internal and external hard drives, memory card, and more

free duplicate photo finder for Windows PC

This excellent free duplicate photo finder has been around for about 10 years and has gone through four upgrades. The latest one is version 1.1.1 released in 2019. 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 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 Auslogics Duplicate File Finder 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 1Add folders to scan

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

Step 2Set scan and removal preferences

This free duplicate file finder 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.

Auslogics Duplicate File Finder settings

Step 3Preview

Previewing allows you to better known the files you are dealing with. 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 4Delete

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.


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.


Free duplicate file finders are generally not as good as their paid counterparts in terms of capacities and performance, but sometimes they are already useful enough. Some of the tools on our list of the best free duplicate file finder software of 2019 are freeware without any limitations. Some also have paid editions which have more advanced features. There are also a few decent open-source tools. 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.

Most Popular Downloads

ContactsMate for Mac

The best contact management software for Mac that keeps all your contacts organized, synced, and up-to-date!

Learn More

AppCrypt for Mac

Lock app and block distracting websites on your Mac so you can get your work done and share your Mac safely.

Learn More

Hot Articles

  • The Complete Guide on Using iPhoto Library Manager on Mac

    Do you really know what is iPhoto Library Manager? What you can do with the help of iPhoto Library Manager? Is it safe for you to use? If you don’t know, don’t be panic. Here is the complete guide on using iPhoto Library Manager for Mac users.

  • 8 Duplicate Video Finders for Mac and PC, Including Freeware

    It's surprising how much disk space duplicated files such as music, videos and photos can take. A duplicate video can take up much more space than duplicate music or photo, a 5-minute video in .flv format takes up about 12MB. So removing these duplicate videos can free up more space on Mac. Here we introduce 8 best duplicate video finder that can find duplicate video files with totally the same content even in a different format.

  • Top 7 Best Duplicate Photo Finders for Mac: Delete Duplicate Photos in Minutes

    It is common knowledge that most of the storage space in an average user’s Mac is used up by such duplicate photos and images. Removing duplicate photos manually is time consuming and annoying task. How to easily and quickly find and delete those same pictures and photos? This article will recommend you top five duplicate photo cleaner and make comparison to decide which one is the best choice for you.

0 Comments Leave a Reply