If you jailbreak your iphone, will the Wi-Fi passwords still be saved?

I think I'm gonna jailbreak my iphone but I have tons of Wi-Fi passwords saved that I don't exactly remember. I want to make sure that when I do jailbreak it, all the passwords will be saved.

Yes.

Yes it will be saved… Your phone will work normal as it was before, just with CYDIA.app
unless you install some un-compatible or Unstable Tweak/Package…