Apps with 'Duplicate Font Finder' feature

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.

MainType is a professional font manager that allows you to view, manage, install and print your fonts with ease. It supports OpenType layout features, vector-based color fonts, custom tags, notes, and ratings.

Manage all of your fonts from one source, no matter how many you have—including your system fonts, purchased fonts, fonts synced from Adobe Typekit, Google Fonts, and more. Turn them on and off as you need.