Duplicate Manager is a handy application that helps you identify duplicate files on your Mac. The search filters are comprehensive and highly customizable, so that the results can satisfy the most exigent needs. Once configured, the selected filters are saved and stored for the next scan attempts. This way, you won't need to reset them at each session if your scan requirements remain unchanged.
The utility provides versatile scanning filters that are conveniently displayed on the main window. You can start by scanning an entire drive or just specific categories of files, such as music, pictures, movies, documents, desktop, and downloads. You can enable the manual duplicate search whenever you consider it necessary, or you can schedule the operation to start automatically at a specific date and time. Furthermore, the auto-selection mode helps you delete duplicates without your manual intervention, simply be asking the app to keep the file samples that meet specific criteria. Optionally, it creates an alias in the place of the removed duplicate item. In addition, you can select the minimum file size to be taken into account in the scan process. What is more, you can determine exclusion rules that will help you narrow the search and retrieve faster results. This way, you can select specific folders, files, extensions, and file types to be excluded from scanning. Another feature you will appreciate is this tool's ability to customize the comparison mode, so that the duplicates can be identified by checksum, name, timestamp, or size. Once the scan is over, the displayed results can be previewed within the app, revealed in Finder, and moved to Trash with a click of a button.
All the above-mentioned features make Duplicate Manager a reliable duplicate finder. The advanced search filters, the auto-cleaning mode, and the ability to set exclusion rules are all included within this great tool available for free.