3 Free and Open-source Mp 4 Apps for macOS (Intel and Apple Silicon)
Iina
Multimedia player for macOS
Iina: The most innovative open-source media/ video player for macOS with clean UI. It supports dark mode, picture-in-picture mode out of box, touch-bar support and it has very nice music mode as well.
Iina is fully customizable as you can customize the user-interface, online streaming, playlist and has a plugin system.
Read more about Iina features.
mpv
a free, open source, and cross-platform media player
mpv is a free (as in freedom) media player for the command line. It supports a wide variety of media file formats, audio and video codecs, and subtitle types.
VLC
Multimedia player for all platforms
VLC is a libre and open source media player and multimedia engine, focused on playing everything, and running everywhere.
VLC can play most multimedia files, discs, streams, devices and is also able to convert, encode, stream and manipulate streams into numerous formats.
VLC is used by many over the world, on numerous platforms, for very different use cases.
The engine of VLC can be embedded into 3rd party applications, and is called libVLC.
VLC is part of the VideoLAN project and is developed and supported by a community of volunteers.
The VideoLAN project was started at the university École Centrale Paris who relicensed VLC under the GPLv2 license in February 2001. Since then, VLC has been downloaded billions of times.