GameEx - GameEx is considered to be the most powerful and feature rich front-end for MAME, GameBase, Daphne, PC Games and all command line based game emulators, along with being a complete Home Theatre PC solution.
RomCenter - Universal ROM Manager. List, examines and repairs all your ROMS. Missing roms ?
Batocera.linux - Batocera.linux is an open-source and completely free retro-gaming distribution that can be copied to a USB stick or an SD card with the aim of turning any computer/nano computer into a gaming console during a game or permanently.
ClrMamePro - ClrMamePro is an extrememly powerful utility for managing roms for practically all systems (not...
SabreTools - DAT management tool with advanced editing and sorting features
AdvanceSCAN - advscan - The AdvanceSCAN roms manager