Open Source Python Duplicate File Finders

dupeGuru is a cross-platform GUI application written in Python (with Qt/Cocoa UI) that quickly detects duplicate files on your computer using flexible scanning modes—including filename fuzzy matching, content comparison, and specialized Music/Picture modes. On some linux systems pyrcc5 is not put on the path when installing python3-pyqt5, this will cause some issues with the resource files (and icons). These systems should have a respective pyqt5-dev-tools package, which should also be installed. The presence of pyrcc5 can be checked with which pyrcc5. Debian based systems need the extra package, and Arch does not. Scanning by filename or content with fuzzy matching to catch similar filenames.

Introducing a lightweight duplicate file remover tool for Windows. With this software, you can efficiently identify duplicate files, determine the amount of storage occupied by these files, and seamlessly remove them. Free up valuable disk space by eliminating redundant copies and optimizing your storage usage. Some Antivers may show false virus alert ignore it , this tool delete files so i think thats why they think this is virus. dont use this tool on "C" drive or where you install your windows .

(AYDUFF)a yet duplicate file finder.

JustOneFile help you to find duplicate files and managed them. It's a Free and Open Source software under GNU GPL licence.

MediaCMN provides tools to create a consistent music library. In detail these tools, index all audio files of certain directories, find duplicate files, tag the files using musicbrainz and organize the audio files in a filesystem.

find duplicate files on your harddisk very fast by comparing only needed files

The littleutils include duplicate file finders (repeats, repeats.pl, repeats.py), image optimizers (opt-jpg, opt-png, opt-gif, recomp-jpg), file rename tools (lowercase, uppercase, pren), archive recompressors (to-gzip, to-bzip2, to-bzip3, to-7zip, to-lzma, to-lzip, to-xz), a tempfile utility (tempname), file property tools (filedate, filemode, filenode, fileown, filesize, and lrealpath), and others. See the README file for more details.