Font Manager - Simple font management for GTK+ desktop environments
NexusFont - Choose and manage your fonts with Nexus Font.
CufonFonts - The world's most comprehensive Webfonts supported free font archive. For designers and developers.
FontExpert - FontExpert - Font Manager for Windows, Photo Manager for Digital Photography.
Gnome Font Viewer - A font viewer utility for GNOME
Typeface 2 - Typeface is a wonderful font manager for macOS that helps you pick the perfect type for your...