No, it is not freeware, but it is free to try. Download it here.
In my opinion, it is by far the best font managing program out there.
In January of 2006 I wrote this introduction to the product, and it has gotten better almost every month since then!
I have my (over 100,000) fonts in many folders on a separate hard drive, 1-Fonts (with sub-foldeers Panose 2, 3, 4, 5, AncientLanguages, DanXSolo, Seasonal, etc) for the fonts I REALLY like.
Another folder named 1CollectedFonts with sub-folders AA-AB, AC-AD, etc. to ZA-ZZ. When I find a collected font I really like, I move it into folder 1-Fonts.
Still another folder contains the fonts I have personally created.
Maintype helps me quickly find the font I need to temporarily LOAD for a project that is automatically unloaded when I turn my computer off. It also helped me set up a 1-Groups Folder with sub-folders containing shortcuts to fonts to load fonts as a group for special projects that I use over and over without having to keep multiple copies of each font.