DupKiller
Statistics for duplicate files, disk space used by duplicate files and number of duplicate files. Statistics for amount of hard disk space freed after deleting duplicates. Automatic deletion with wildcards feature. Fast search algorithm with various search options: Match by file content (binary file compare). Match by file name. Detect similar names. Match by file size. Match by file type. Match by file date and time. Skip zero length files. Minimum and maximum file size searching. Enable inexact comparison (some per cent matching). Turn scanning of hidden/system/read-only/archive files and folders on or off.
