FontLoader is described as 'Temporarily install fonts on your system and avoid cluttering your Fonts folder' and is an app in the OS & Utilities category. There are eight alternatives to FontLoader for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and iPhone. The best alternative is NexusFont, which is free. Other great apps like FontLoader are FontViewOK (Free), Fontcase - Manage Your Type (Free, Open Source), CufonFonts (Free) and Font Book (Free).
Nexus Font is a font manager for Windows. If you have many fonts and you need to choose fonts you want, this program is for you. You can compare many fonts at once and there are several useful functions to manage font files.
FontViewOK creates a quick visual overview of any 2 fonts for comparison. Change font formats in the comparison window. Enter your own text for comparison. Optional single pane to view longer samples. Features: # Quick overview and comparisons of all fonts.
Font Book is the standard font manager that comes with Mac OS. The program enables users to: Preview and install font files, avoiding multiple instances of the same font. Review installed fonts using various sample texts and sizes.
Use fonts without needing to install them, just drag'n'drop to Photoshop/Illustrator! With an online catalog of fonts, quickly search and install them. Adobe suite integration lets you create new text layers and restore missing fonts.