Celluloid (formerly GNOME MPV) is a simple GTK+ frontend for mpv. It aims to be easy to use while maintaining high level of configurability. (GPL)
Linux
SMPlayer intends to be a complete front-end for MPlayer. (GPL)
Linux - FreeBSD - Windows - macOS
VideoLAN (VLC) media player is a highly portable multimedia player for various audio and video formats. (GPL)
Linux - FreeBSD - Windows - macOS
Videos is a video playback application designed to work with GNOME 3. It's based on Totem, the original GNOME video playback application. (GPL)
Linux - FreeBSD
5 applications