As the comments below point out, there are a number of different ways to manage and access fonts, but I think this simple piece of freeware has a place. I have an older machine (iMacG4 800) and find most font apps slow to the point of distraction, including Font Book, or the other one I use FontDoc, which takes several minutes to start up. If I am in Photoshop and want to select a font, this app does the job perfectly. It opens in an instant, has a tiny CPU and RAM footprint and lets me quickly go through my library to find the one I want. Yes that is a niche use, but it fills my niche perfectly! Thanks to the dev.
Slightly naff icon mind you!