All the state government parking lots are free after 5 PM and all day weekends:
https://files.nc.gov/ncdoa/documents...ateParking.pdf
Parking in the city garages is generally free after 7 PM weekdays and all day weekends with exceptions for special events and some charge a fee for Fri/Sat nights:
https://downtownraleigh.org/getting-around/parking (click on each deck on the map for more info about their hours/fees)
Besides from that, I'm not disclosing my other free parking spots since I've noticed the competition has been starting to pick up on it
I can count on my fingers the number of times I've paid for parking in downtown Raleigh and I frequent downtown (and those instances were mostly just out of pure laziness). There's free parking as long as you know what the free parking hours are and are ok with a short walk.