Basically title!
I want to run it through my NAS to free up some space.
Tha ks in advance.
I personally use rdfind as it has an option to replace duplicates with hardlinks instead of deleting them outright (if on the same filesystem). This is useful if you do still need a file to exist at multiple paths.
I then use Czkawka for everything else, especially for similar, non-duplicate files.
DupeGuru
For the case that you use synology: already built in in the storage analyser feature
Otherwise: no clue tbh
I have a Synology Nas. Never seen this function but I’ll search for it, thanks!