Mednaffe is a front-end (GUI) for mednafen emulator
Its main features are:
- It is written in C language.
- Available for Linux and Windows.
- The only dependency (on Linux) is GTK+2 (or GTK+3).
- GPLv3 licensed.
Note: Mednaffe only works with 1.21.1 or higher versions of mednafen emulator.
More screenshots here.