Instead of Anti-Twin
Anti-Twin alternatives
Anti-Twin focuses on finding duplicate and similar files across local disks, USB media, memory cards, shared network folders, and a second path. It compares content byte by byte, checks identical or similar filenames, and uses pixel-based matching for pictures that differ in format or compression. Results can be sent to the Recycle Bin or exported for spreadsheet review, and the program can run from a USB stick. Its free plan covers Linux, macOS, and Windows use, including Windows 32-bit and 64-bit downloads and Wine operation on Linux or Mac.
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Czkawka
Free plan Open source AndroidAPILinux+2Broad duplicate cleanup with GUI, CLI, or Android access — Czkawka adds empty-folder, temporary-file, large-file, video, music, GUI, CLI, and Android tools beyond Anti-Twin's matching modes.
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dupeGuru
Free plan LinuxMacWindowsDesktop users needing specialized music and picture scans — dupeGuru offers Standard, Music, and Picture modes with fuzzy names, music tags, exact contents, and protected reference files.
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Duplicate Files Fixer
Free plan AndroidMacWindowsCloud-connected duplicate cleanup across desktop and mobile — Duplicate Files Fixer scans external drives and selected Google Drive or Dropbox folders, with previews, auto-marking, and a 15-duplicate free deletion limit.
7.2 Visit site - 4
fclones
Free plan LinuxMacWindowsAdvanced command-line deduplication and filesystem controls — fclones adds moving, replacing with links, copy-on-write reflinks, filtering, multiple output formats, dry runs, and persistent hash caching.
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jdupes
Free plan Open source LinuxMacWindowsFast exact-match cleanup with links and block deduplication — jdupes handles only 100% identical files but adds hard links, symlinks, block-level deduplication, hash verification, and a native Windows port.
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rdfind
Free plan LinuxMacWindowsContent-based recursive scans with checksum choices — rdfind uses selectable MD5, SHA-1, SHA-256, SHA-512, or xxh128 checksums and defaults to a non-destructive results file.
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Space Wizard
by Space WizardFree plan LinuxMacWindowsCross-platform scans that include external drives — Space Wizard is a freemium cross-platform scanner that supports external-drive scans but does not provide treemaps, application sizes, or file-type breakdowns.
Free plan Visit site - 8
Avidemux
Free plan Open source LinuxMacWeb+1 - 9
AllDup
Free plan Windows - 10
Dup Detector
Free plan LinuxMacWindows - 11
Ashisoft Duplicate File Finder
Free plan Windows - 12
CloneSpy
Free plan Windows - 13
DoubleKiller
Free plan Windows - 14
dskDitto
Free plan LinuxMac - 15
DUDE (DUplicates DEtector)
Free plan LinuxWindows - 16
Duplicate Cleaner
Free plan Windows - 17
Duplicate Files Search & Link
Free plan Windows - 18
rmlint
Free plan LinuxMacSelf-hosted - 19
fdupes
Free plan Linux - 20
Auslogics Duplicate File Finder
Free plan Windows - 21
Cisdem Duplicate Finder
Free trial MacWindows - 22
Duplicate Photos Fixer Pro
Free trial AndroidiPhoneMac+16.2 Visit site - 23
dupeGuru
Free plan LinuxMacWindows - 24
DuplicateDuster
Free plan LinuxMacWindows - 25
EaseUS DupFiles Cleaner
Free plan Windows
Switching becomes more attractive when its boundaries affect your cleanup. Files over 2 GB are excluded, and searches do not cover the Internet or FTP servers. Deleted files have no in-program restore function, while mass selections and similar-image matches require manual checking. The site says maintenance ended in 2012, despite continued operation on Windows 10 and 11. Compare whether you need specialized music or video tools, cloud scans, command-line control, mobile access, linking or copy-on-write deduplication, or stronger deletion safeguards. Platform support and free-use limits may also decide the better fit.