mpv

mpv is a free, lightweight media player driven from the command line. It plays a wide range of file formats, audio and video codecs, and subtitle types on Windows, macOS, and Linux, and runs entirely on your own machine.

Video rendering and scaling are shader-based for high-quality output, with hardware decoding available through the --hwdec option. Behavior is configured through command-line options and config files, and optional Lua scripting powers the on-screen controller and youtube-dl integration for online videos.

Descended from the MPlayer project, mpv is GPLv2 or later by default, or LGPLv2.1 with a build flag. Prebuilt downloads and third-party packages are available for all three platforms.