Duff Alternatives

Duff is described as 'DuFF is Unix command-line utility for quickly finding duplicates in a given set of files' and is a duplicate file finder in the file management category. There are more than 100 alternatives to Duff for Windows, Linux and Mac. The best alternative is dupeGuru, which is both free and Open Source. Other great apps like Duff are Czkawka, Duplicate Cleaner, AllDup and VisiPics.

Duff alternatives are mainly Duplicate File Finders but may also be Duplicate Images Finders or System Cleaners. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Duff.

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Duff

Free • Open Source
Duplicate File Finder
Linux

DuFF is Unix command-line utility for quickly finding duplicates in a given set of files.

Learn more about Duff

dupeGuru
Is this a good alternative?
Yes
No
Free • Open Source
Duplicate File Finder
Duplicate Images Finder
Mac
Windows
Linux
122 alternatives to dupeGuru
dupeGuru is a free and open source tool to find duplicate files on your computer. It can scan either filenames or contents. The filename scan features a fuzzy matching algorithm that can find duplicate filenames even when they are not exactly the same.
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dupeGuru Features
1. Works OfflinedupeGuru can be used without the need to connect to the internet.
2. Ad-freedupeGuru doesn't contain any form of external advertising.
Local based GUI
Automatic deletion of duplicate entries
Support for Hotkeys
Czkawka
Is this a good alternative?
Yes
No
Free • Open Source
Duplicate File Finder
System Cleaner
Duplicate Images Finder
Mac
Windows
Linux
116 alternatives to Czkawka
Czkawka is a simple, fast, written in Rust and easy to use app to remove unnecessary files from your computer.
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Czkawka Features
1. Dark ModeCzkawka supports dark mode for comfortable usage in low light conditions.
2. Command line interfaceCzkawka either have CLI support or is a CLI-only app.
Image Preview
Fast file and folder search
Multi Folders Selection
Graphical User Interface
Rust
Duplicate Cleaner
Is this a good alternative?
Yes
No
Paid • Proprietary
Duplicate File Finder
Duplicate Images Finder
Windows
107 alternatives to Duplicate Cleaner
Duplicate Cleaner is a tool for finding and removing duplicate files from your computer or network drives; It is intended to be used on user content - documents, photos, images, music, but can be used to scan any type of files.
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Duplicate Cleaner Features
Find similar images
Disk Maintenance
AllDup
Is this a good alternative?
Yes
No
Free • Proprietary
Duplicate File Finder
Duplicate Images Finder
Windows
76 alternatives to AllDup
AllDup is a freeware tool for searching and removing file duplicates on your computer, network shares or external storage media. The fast search algorithm find duplicates of any file type, e.g., text, pictures, music or movies.
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AllDup Features
Multi Folders Selection
File preview
Image Preview
Multi-selection
Partial name compare
VisiPics
Is this a good alternative?
Yes
No
Free • Proprietary
Duplicate Images Finder
Duplicate File Finder
Windows
52 alternatives to VisiPics
VisiPics does more than just look for identical files, it goes beyond checksums to look for similar pictures and does it all with a simple user interface. First, you select the root folder or folders to find and catalogue all of your pictures.
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VisiPics Features
Find similar images
Image indentify
Visual analysis
Compare pictures
Image Preview
Discontinued
The program seems to be no longer updated. Last version, 1.31, released in February 2013, can be still downloaded from the official website.
CloneSpy
Is this a good alternative?
Yes
No
Free • Proprietary
Duplicate File Finder
Windows
58 alternatives to CloneSpy
CloneSpy is a Free Duplicate File CleanUp Tool for Windows. CloneSpy can help you free up hard drive space by detecting and removing duplicate files. Duplicate files have exactly the same contents regardless of their name, date, time and location.
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CloneSpy Features
1. PortableCloneSpy can be used from a USB stick or similar with no prior installation.
FSlint
Is this a good alternative?
Yes
No
Free • Open Source
Duplicate File Finder
System Cleaner
Linux
82 alternatives to FSlint
FSlint is a utility to find and clean various forms of lint on a filesystem. I.E. unwanted or problematic cruft in your files or file names. For example, one form of lint it finds is duplicate files. It has both GUI and command line modes.
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FSlint Features
Graphical User Interface
Filesystem
AVG PC TuneUp
Is this a good alternative?
Yes
No
Paid • Proprietary
System Cleaner
Duplicate File Finder
Software Uninstaller
Windows
174 alternatives to AVG PC TuneUp
Make your old PC live longer — and your new PC run faster — with AVG TuneUp. Our PC optimizer comes with revamped Sleep Mode technology to boost your PC speed and performance, and Disk and Browser Cleaners that free your storage space.
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AVG PC TuneUp Features
1-click maintenance
Customize Windows
Memory Optimization
Registry repairing
Duplicate & Same Files Searcher
Is this a good alternative?
Yes
No
Free Personal • Proprietary
Duplicate File Finder
Windows
46 alternatives to Duplicate & Same Files Searcher
Duplicate & Same Files Searcher is an application for searching duplicate files (clones) and NTFS hard links to the same file. It searches duplicate file contents regardless of file name (true byte-to-byte comparison is used).
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Duplicate & Same Files Searcher Features
1. PortableDuplicate & Same Files Searcher can be used from a USB stick or similar with no prior installation.
Disk Maintenance
Similarity
Is this a good alternative?
Yes
No
Freemium • Proprietary
Windows
25 alternatives to Similarity
Similarity is a useful program that helps you to find and remove similar, duplicate musical files (MP3, WMA, OGG, ASF, WAV, FLAC, APE, WV) with the same or similar sound content, music tags (ID3,WMF,Vorbis).
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Similarity Features
AcoustID audio fingerprints