Free Duplicate Finder use the source code of Video Duplicate Finder under license GPLv3 . The Video Duplicate Finder official website: https://github.com/0x90d/videoduplicatefinder/ Free Duplicate Finder is a cross-platform software to find duplicated video (and image) files on hard disk based on similarity. That means unlike other duplicate finders this one does also finds duplicates which have a different resolution, frame rate and even watermarked. Note: doesn't support 32bit machine # Features - Cross-platform - Fast scanning speed - Ultra fast rescan - Finds duplicate videos / images based on similarity - Windows GUI, Linux GUI and multi-OS Console