How to spy on Facebook Messenger chat for free without them knowing?

I’m worried my partner is hiding things from me, but I can’t afford paid spy apps. I tried some free tools but they didn’t work. Is there any real way to see their Facebook Messenger chats without them knowing?

Gonna be straight with you - those “free spy tools” are basically all scams or malware, they’ll just steal YOUR info instead.

For partners specifically, honestly the most reliable thing is just having a direct conversation - sounds boring but it actually works better than any app, free or paid.

If you’re in a shared household situation, checking your router’s traffic logs or looking at mutual account activity (shared Netflix, Google family stuff) tells you way more than any sketchy “free messenger spy” ever will.