FreeFileSync Forum

Well, if you want to, you can use FFS for a left-side deletion after sync, but this is a manual action.

First run an FFS Compare and then Sync (the Update variant).
(all content in scope should now be in sync)
Now, in the Select View part below the (likely now empty) Compare results, press the ...

Salamander Directory Compare.png FFS operates on directory pairs in parallel relative directory hierarchies. That is what I often need from a duplicate cleaner
(Depending on just what you're looking for) a file manager may be an adequate tool.
For comparing two sets of directories, a file manager ...

That, again, is no longer syncing and becomes a different tool

Couple of potential responses:
1. Yes, but why bother?
2. Yes, but not by much. So why bother much?
3. Mnnnyeah, maybe... but why not retrofit existing functionality somewhat to double the tools's applicability?
4. Not at all ...

In the "Synchronization Settings" dialog on the "Synchronization (F8)" tab I'd like to have "Both sides are identical" listed as another... well... "Difference".

As possible "Actions" for that "Difference" I'd like to have "Do nothing", "Delete left item" and "Delete right item".

I think the ...