Open Source Java Duplicate File Finders

Unlike other duplicate finders such as Easy Duplicate File Finder, Auslogics Duplicate File Finder, MindGems Fast Duplicate File Finder, Duplicate Cleaner, DupFiles and others, GDuplicateFinder is a FREE cross-platform application, with the ability to search among not just local files, but files on the network, such as a Windows or a Linux share using VFS library. Taking advantage of Groovy facilities and GPars power to process in parallel, GDuplicateFinder will help you get rid of those duplicates you always wanted to dispose in an easy and friendly way. Looking for translators to translate the app! If you'd like to help me, please create a GitHub Issue here (https://github.com/guicamest/GDuplicate-Finder/issues) mentioning the language so that I get notified. Thanks in advance <3 If you want to help me continue improving this app, donate some money through paypal! https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=fezuqqg9t6j6y

Two goals : Allow to find duplicated files on computer / find files which haven't been backed up yet

dupliFinder is a app that searches your computer for duplicate files by compairing the MD5 sum of each file. You then have the option of deleting any duplicate files found. Great for collections of MP3s, images etc.. Runs on Windows & Linux with Java 1.5

This software finds duplicate files across all directory levels inside a given folder.

A simple, super-fast, lightweight duplicate file finder written in java. System requirement: Java 1.6+ 20 KB of disk space (lol :D)

HashCatalog is a program that can find duplicate files in one or more folders, or between 2 lists of one or more folders. HashCatalog can also create an xml database file containing a listing of files with hashes.

Synclair is a tool for diff'ing and synchronizing directories. It also includes a utility to find duplicate files (by name, or md5 hash). It is a command line tool, written in Java.