AI RoboForm is my favorite. I should give rating 6 to this program from 5 available. I am using it for many years on all my computers and all external drives. However, for the purpose of this topic (free software), I have to evaluate just free software capabilities. And for free RoboForm version they are very limited. RoboForm is free to use with a maximum of 10 contacts and limited functions.

So, if you do not mind paying for - go for it. You will not be sorry. If not, choose among other free alternatives.