It's not going to be easy to find free public records searches online, here's why:
A common misconception is that because information is available to the public (offline) then it should be free. In most cases, however, there are offline search fees, copy fees, material costs, administration etc. And this does not include the costs of putting the information online.
Private companies take the time to search from a big pool of resources i.e. court records, county records, change of address records, property records, business records, phone records etc. they then assemble and order the info, and finally put it online, for which they charge a fee.
Because they have a greater pool of resources you also stand a better chance of finding complete information - compared to you manually searching only one, ex. county records, of the many they search.
Most people end paying to use the online public records searches , including myself.
It's convenient, saves loads of personal time, and ends up being a lot cheaper than physically driving to various government buildings, waiting for hours in numerous queues, and then you still end up paying a fee for the information anyway - which is rarely complete.
The crowd I usually use are Gov public records searches , I find them to be the best i.e. they have the largest pool of information, the process is very fast, and 9/10 times they have the complete info I'm looking - remember this is not an exact science.
Anyway, I hope that clears the free public records searches anomaly! :-)
Good luck with your searches.
Cheers.