## About Decloner

Your Mac may accumulate duplicate files over time. You may have multiple copies of files in your Downloads or Pictures folder, or several identical photos in your iPhoto or Aperture libraries. Decloner helps you find those files and get rid of them, reclaiming wasted space.

Decloner is an easy to use application that does a single task well. For ultimate reliability it uses SHA-1 hashing algorithm to compare files. This means there is no chance for it to mistake different files for duplicates.

### Decloner:

- scans for duplicate files in a set of folders, iPhoto or Aperture libraries that you choose
- compares files using SHA-1 cryptographic hash algorithm for ultimate reliability
- shows duplicate files in groups and allows selecting multiple files for deletion
- displays selected file information and QuickLook preview
- allows to auto-select duplicate files quickly, keeping the oldest or the newest in a set of duplicate files, preferring files in the order of scan locations
- makes sure at least one copy of a file is preserved when deleting duplicates
- never actually deletes files itself—for your ultimate peace of mind when you 'delete' files, Decloner stages them for removal and puts the files you delete in Trash, iPhoto Trash, or tags them with 'Duplicate' keyword in Aperture, so that you can always recover them unless you manually delete them in those applications.