Add to Chrome
Add to Edge
Add to Firefox
Add to Opera
Add to Brave
Add to SafariWhen comparing DoubleKiller vs AllDup, the Slant community recommends AllDup for most people. In the question“What are the best software tools to find duplicate files?” AllDup is ranked 1st while DoubleKiller is ranked 18th. The most important reason people chose AllDup is:
Keep only earliest copy, for instance.
Specs
Question Ranking
Pros
Pro Tolerates multiple sessions
I often run multiple sessions of DoubleKiller Pro, to find duplicate files among different sets of disks.
Pro Flexible rules for finding duplicate files
The program can find duplicate files based on any combination of size, name, CRC, and byte-for-byte. It's possible to limit search to files matching a specific name or extension pattern (great for limiting search to certain file types) as well as using the same technique to exclude certain results. You can also tell the software to ignore any of combination of read only, hidden or system files as well as files of below or above certain size and archives.
Pro Select files by date
Keep only earliest copy, for instance.
Pro Find similar images
Can find similar but not identical images, using aHash, dHash, or pHash
Pro Select files for deletion based on folder tree
You can select any point in a folder tree and mark all files nested within that tree for modification or deletion
Pro Ignore EXIF or ID3 tags when comparing files
So you can find duplicates of the same MP3 even if the metadata tags have been edited, for instance.
Cons
Con No byte by byte comparison
While CRC checksums will be enough for most people, an option to check for duplicate files byte by byte would be nice.
[Edit] DoubleKiller does offer that option.
