BOSS MSX Frontend: Frontend for the fMSX emulator.
EMUStation: Universal Frontend, featuring built-in IPS patcher, ZIP support, and Explorer integration.
Game Launcher: A universal DOS front end for emulators.
GameBoy Mnu: Frontend for GameBoy 97
Genesis LaunchTool: Header tool and launcher for Genesis emulators.
Hyper Em: Win32 graphical frontend for any command line launched emulator.
Kemulator: A multi system open source frontend for Linux/KDE.
KStella: A KDE frontend to the Atari 2600 emulator, Stella.
Raging Dragon: Skinable front end for MAME, Impact and Modeler.