Apps similar to DupInOut include CCleaner, which has a free version. Other options are Czkawka, dupeGuru, Duplicate Cleaner and AllDup. There's no shortage of Duplicate File Finders like DupInOut, with more than 50 alternatives for Windows, Mac, Linux, iPhone and iPad.
Rdfind is a program that finds duplicate files. It is useful for compressing backup directories or just finding duplicate files. It compares files based on their content, NOT on their file names.
Anti-Twin is a small software application which compares files, i.e. it searches for duplicate or similar files on your hard disk drive. All similar or identical files that were found can either be sent to the recycle bin or directly deleted.
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Statistics for duplicate files, disk space used by duplicate files and number of duplicate files.
Ukraine
Extremely fast duplicate file finder for Windows, Mac & Linux.
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Duplicate Media Finder locates and deletes identical files and similar media (Photos, music, videos) on your PC smartphones (Android, iPhone, ...) or cloud.
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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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A commandline tool to find unnecessary files (duplicates, tmpfiles, unstripped binaries and more)
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A program that can find duplicate or similar video files. Video simili duplicate cleaner compares the video content regardless of different format or compression used (digital video fingerprinting), while other software only find identical files .
Awesome Duplicate Photo Finder is a free powerful tool, that helps you to find and remove duplicate photos on your PC. With this program you can easily clean up your photo collection from duplicates or even similar images.
Fast Duplicate File Finder will help you find fast all duplicate files in a folder and its sub folders. The applications will compare the content of your files so it will find duplicates even if they are using different file names.
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Quickly finds duplicate files relied on their content, focus on finding and cleaning the duplicate files on Windows.
United States
Identifies and eliminates both duplicate and similar images across photo libraries on PC or Mac, offering three scan modes and two advanced algorithms for thorough detection. Enables organizing, decluttering, and managing extensive photo collections efficiently.
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