DupInOut is a duplicate file finder software for Windows that helps to regain lost storage space by identifying and removing redundant files. With a user-friendly interface and a pie-chart report, users can easily mark and delete, move, or rename the duplicate files with a single click.

A significant advantage of DupInOut is its ease of use. It features a simple Drag & Drop interface, allowing you to easily add folders to the Search List and Ignore List. You can select certain file types to scan if you don't want to search every file. Additionally, you can use File Size Filters to filter out files above or below a specific size.
DupInOut generates a full report with a pie chart of the storage occupied by each file type group once the duplicate scan is completed. It offers an in-house file preview function to eliminate the need to sift through each file during the review. The software has a one-click marking feature that allows you to mark hundreds of duplicate files automatically using the file attributes you choose, such as newest or oldest files in each group, file size, path, or creation date.
Finally, you can delete duplicates permanently or move them to another folder. Additionally, you may add prefix or suffix text to the files or rename them to avoid confusion. You can also import and export your scan preferences to make it simple to start a new scan without having to define the entire list of folders and filter settings from the beginning. DupInOut Duplicate Finder is an excellent option for anyone seeking to free up storage space while maintaining the organization of their files.
Version 1.1.3.1:
* New options: Mark largest/ smallest files, Mark music with highest/ lowest bit rate, longest/ shortest duration
* Folder Compare methods can be fully customized
* Displays music tags info inside the Duplicates List columns
* Built-in Offline Activation support
* Fixed: Music previewing issue
Version 1.1.3.0:
* Duplicate Music Search: Find duplicate music using various music tags of your choice (album, artist, bitrate, duration, genre, title, track and year).
* Improved Save Session feature supports saving your Folder Compare results (earlier, only Duplicates List could be saved)