App: Duplicate File Finder Remover
Developer: Nektony LLC
Genres: Utilities, Productivity

Get more free disk space by removing unnecessary duplicate files and folders from your Mac. Remove duplicate photos on any mounted disk or folder.
Use Duplicate File Finder FREE to find and remove duplicate files and similar media. Get the Pro version to delete duplicate folders, manage similar photos and music files, merge any folders, mass-select duplicates, and more.

Get rid of duplicate files just in 3 steps:
Scan a disk, folder, or Photos Library for duplicates → Select duplicates → Review and Remove duplicates.

In a few minutes, Duplicate File Finder will provide you with a report of all the duplicate files by their categories: pictures, videos, music, archives, documents, and any other specific extensions. It has never been easier to see how much space each file takes.
With this duplicate photo finder, you can scan as many folders as you wish, as well as multiple Photos Libraries.  All you need to do is Drag and Drop the folders or disks into the app and click to Start Scanning.

List of the best Duplicate File Finder features:

SCANNING
▸ Fast scanning algorithm
▸ Ability to scan for duplicates in multiple folders and drives simultaneously
▸ Ability to scan multiple Photos Libraries 
▸ Support for external drives and mounted network folders
▸ "Recent Folders List" for scanned folders
▸ Skip list for various files and folders
▸ Minimal file size" option for a faster scan
▸ Finding similar images
▸ Finding similar audio files

RESULTS OVERVIEW
▸ Duplicate files list
▸ Similar photos list
▸ Duplicate files by type

DUPLICATES
▸ Preview duplicates by file type
▸ Built-in duplicates search
▸ Preview duplicates with Quick Look
▸ Sort duplicates: by name, size, date, total size, type, duplicate count
 
SIMILAR MEDIA
▸ Find a series of similar photos in the Photos Library
▸ Compare similar photos in each group of series
▸ Find similar audio files

SELECTING
▸ "Always select" and "Never select" auto-select rules
▸ Smart duplicate auto-selection
▸ Option select duplicates in particular folders
▸ Reverse selection with "Keep files..."
▸ Visual progress bar of the selected duplicates

REMOVING
▸ Confirmation before removing files
▸ Customizable view of confirmation list
▸ Customizable removal options: move to directly Trash, remove completely or move to a specific folder
▸ History of removed duplicates

Duplicate File Finder FREE app allows you to:
• Find duplicate files and folders
• Find duplicates in multiple disks, folders, and Photos Libraries in one session
• Find duplicates in any folder, disk, mounted folder, or storage
• Add files, folders, and specified files extensions to the Skip List
• Specify minimal file size for better duplicate-finding performance
• Review duplicate files by types
• Preview duplicate folders
• Preview any duplicate with a built-in Preview option
• Get detailed info about any duplicate
• Use Auto Select for quick duplicate files selection
• Customize Auto Select preferences
• Preview similar folders - the folders with duplicate and unique files
• Preview similar photos 
• Preview removal history
• Review selected duplicates before removal
• Delete duplicate and similar files

The Pro version of Duplicate File Finder provides you with even more features:
• Use the “Select Duplicates in Folder” feature to select duplicates in bulk
• Remove duplicate folders
• Remove duplicate files in Similar folders
• Merge similar folders
• Merge any two folders to even a new folder
• Move selected duplicates to a specific folder
• Restore removed duplicates

*The application is free. It allows you to find and remove duplicate files in any folder or storage connected to your Mac.
An in-app purchase of 'Upgrade to Pro' within the software is required to enable the Pro features.
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

NOTE: If you have any comments, general questions, or technical issues, contact us directly at support@nektony.com, and we will respond to you within one business day.

Release notes:
Improved searching for similar photos and audio files on external drives