Best programs to find duplicate files in Windows

Last update: 02/05/2025

  • There are a wide variety of effective programs for locating and removing duplicate files on Windows and Mac.
  • Using duplicate search engines frees up space, increases performance, and facilitates document management.
  • The choice of the right program depends on the needs of each user and the number of files to be managed.
repeating files

Do you feel that your computer is getting slower and slower and the HDD seems to fill up magically? Don't worry, you're not alone. Accumulating duplicate files is one of the most common problems on any device. That's why it's important to know What are the best programs to find duplicate files in Windows?

It's always better to use software, as manual work can be long and tedious. We analyze some of the most interesting options here with updated information.

Why do duplicate files accumulate on my computer?

Over time, everyone goes accumulating duplicate files without even realizing itYou may download the same photo multiple times, sync folders to the cloud without keeping them organized, or save similar documents in different locations "just in case you need them." Additionally, automated programs, backups, and simple oversights also contribute to this problem.

The result: storage is filled with digital junk, reducing the available space and even affecting your computer's performance if the disk starts to fill up. Therefore, Deleting duplicate files is one of the most recommended maintenance tasks for any user.

find duplicate files

Advantages of using duplicate file search engines

Deleting and managing duplicate files is not just a matter of orderThere are several direct and indirect benefits, including:

  • Recover space on your hard drive or SSD, avoiding filling it with unnecessary content.
  • Increase team performance, since Windows (or Mac) works best when there is free storage space.
  • Reduce the risk of errors, conflicts, or slowdowns caused by having duplicate files or installations.
  • Facilitate cloud backups and synchronization, avoiding loading the cloud with unnecessary files.
  • Save time when searching for important documents, without having to review dozens of similar versions.

The best programs to find and delete duplicate files

Currently, there is a wide variety of programs available for finding duplicate files, from comprehensive free solutions to professional applications with advanced features. Let's review the most outstanding ones, according to comparisons, real user experience and what each one offers.:

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easy duplicate finder

Easy Duplicate Finder

This program is one of the most recommended for its Ease of use, power, and compatibility with both Windows and MacOne of its biggest advantages is its drag-and-drop interface, which makes it easy to use even for less experienced users.

Main Features:

  • Fast and complete scanning of HDD, SSD or clouds (such as Google Drive or Dropbox).
  • Advanced algorithm to detect duplicates by name, content, size, and metadata.
  • Preview function for images, music, videos and documents.
  • Protect important files to prevent accidental deletion.
  • Specialized technical support and regular updates.
  • Annual purchase options and free trial version.

The only downside is that some features are reserved for the paid version, but it's worth it if you're looking for reliability and support.

Link: Easy Duplicate Finder

CCleaner

CCleaner

You've probably already heard of CCleaner, the classic program for cleaning system junk. What many people don't know is that It incorporates a specific module to search for and delete duplicate files.This option is included in the free version, although the Professional edition adds advanced features and premium support.

The best of CCleaner:

  • Very easy to use and secure, with years of experience in the sector.
  • Allows you to filter by disks, folders, extensions and dates.
  • Basic preview and manual selection of files to delete.
  • Compatible with both Windows and Mac.

Its main limitation is that the preview is not very advanced and, in comparison, it is not as powerful as other more specialized alternatives.

Link: CCleaner

wise duplicate finder

Wise Duplicate Finder

Wise Duplicate Finder It's a highly valued tool for those looking for a straightforward, hassle-free solution with Spanish support for Windows. Ideal for scanning entire folders or specific file types (photos, documents, music, etc.).

Main advantages:

  • Able to detect duplicate files by name, size, extension and even content.
  • Allows manual or automatic deletion, and has a quick recovery option in case of error.
  • Includes function to detect and delete empty folders.
  • It supports multiple languages ​​and has a free trial.
  • Offers online guidance and help.

Link: Wise Duplicate Finder

ALLdup

AllDup

AllDup is a very popular alternative in the Windows environment, completely free and aimed at both home and advanced users.

Main Features:

  • Search by name, size, extension, attributes, content and dates (creation/modification).
  • Quick scan, support for compressed formats such as ZIP and RAR.
  • Simple interface, completely in Spanish, and preview option for some files (especially music).
  • Ability to search within specific folders or the entire disk.
  • Completely free and without major limitations.
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It lacks advanced deleted file recovery features, but in terms of scanning, it's one of the best you can install for free.

Link: Alldup

clonespy

CloneSpy

CloneSpy is A classic and free tool for finding duplicate files on your PC, even those with zero bytes. Highly valued for its ease and speed, although the interface is quite simple and it's not compatible with all versions of Windows (up to Windows 10).

Key points:

  • Search by name, size, date and content.
  • Ability to filter old files, choose search location and act accordingly (delete, move, keep).
  • Free and very light, although without recent updates.

Link: CloneSpy

dupeguru

Dupeguru

Dupeguru It is a multi-platform tool (Windows, Mac, Linux) that is especially powerful for finding duplicates even if they have changed names or have had minor modifications.

Features:

  • Scan by name or by content and fuzzy matching algorithm which even locates files with different but similar names.
  • Allows you to copy, move or delete duplicates.
  • Free, open source, although with a somewhat basic interface.

Link: Dupeguru

hiccup

Hiccups

For advanced users or free software lovers, Hiccups is a multifunctional option available on Github (in English) to search for duplicate files or even similar images or empty folders.

Stands out for:

  • Fast scanning speed even on large disks.
  • Allows you to scan disks, specific folders or external storage.
  • Simple interface, but with a large number of options to customize the search.

Link: Hiccups

advanced system care

Advanced SystemCare

This program is more than just a duplicate file finder: offers a complete package of cleaning, optimization, security and duplicate file detection.

  • It allows you to manage Windows startup, delete digital junk and search for duplicates.
  • Includes security measures and network accelerators.
  • Tested on Windows and with free trial.

Link: Advanced System Care

How to Use a Duplicate File Finder: Recommended Steps

Although each program has its own peculiarities, most duplicate search engines follow a fairly similar process. The most common steps would be:

  1. Download and install the appropriate tool for your operating system.
  2. Open the program and select the folders, drives, or file types you want to analyze.
  3. Configure search criteria: by name, extension, size, content, dates, etc.
  4. Start the scan and wait (times may vary depending on the amount of data and disk speed).
  5. Review the list of files detected as duplicates, using the preview if necessary.
  6. Automatically or manually select files to delete, move, or keep.
  7. Confirm the deletion or the chosen action, making sure you don't delete anything important.
  8. Check your recycle bin or backup location if you have any questions.
Related article:
How to remove duplicate files in Google Drive

How to prevent duplicate files from being generated?

Beyond cleaning your device from time to time, It is best to develop habits that prevent the accumulation of duplicate files. Here are some practical tips:

  • Always use automatic detection software to prevent duplicates from multiplying uncontrollably. Many programs offer scheduled reminders and scans.
  • Save the files in centralized locations so as not to disperse documents and copies in different folders and disks.
  • In work environments, it encourages the use of shared documents in the cloud or collaborative platforms to avoid unnecessary downloads and copies.
  • Implement a document management system (DMS) If you handle large volumes of information, take advantage of advanced searches and classification.
  • Establishes clear naming conventions that include date, version, user, etc. This makes identifying duplicates much easier.
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What are the risks of deleting duplicate files?

Although programs to find duplicate files are usually safe and allow preview, There is a potential risk of accidentally deleting an important file.. Therefore, always follow these recommendations:

  • Use preview whenever possible, especially with documents and photos.
  • Enable the option to send deleted files to the recycle bin or a temporary folder before permanently deleting them.
  • Back up critical data before performing mass deletions.
  • Pay attention to search filters, avoiding including system folders or files essential for program operation.

Keeping your computer free of duplicates not only improves organization and storage capacity, but also directly impacts overall system speed and performance. Taking a few minutes to review and clean up duplicates from time to time is one of the best habits to prolong the lifespan of your computer and avoid headaches in the future.