Nexus Font is a very nice and useful tool to manage all your fonts. You don't need to install all fonts to the system. While Nexus Font is running, all listed fonts in Nexus Font are available on other programs. Don't slow down your system by keeping hundreds of fonts installed to it.
Don't waste your storage space with unnecessary font files. Nexus Font will find duplicate fonts even if the font files have different file names.
Nexus Font is also portable. It maintains the library and your sets on the same removable device even if the drive letter for the device changes. Carry your fonts on a USB flash drive with Nexus Font. Then you can use the fonts on it by just launching Nexus Font on any computer. Nexus Font does not make any changes to the Registry.