The best open source alternative to Ario is VLC Media Player. If that doesn't suit you, our users have ranked more than 50 alternatives to Ario and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Ario are Clementine, Audacious, Rhythmbox and DeaDBeeF.
Ario is mainly a Audio Player but alternatives to it may also be Media Players or CD Rippers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Ario.
Audacious is an advanced audio player. It is free, lightweight, based on GTK+, runs on Linux and many other *nix platforms and is focused on audio quality and supporting a wide range of audio codecs. There is also support for several visual styles from Winamp.
DeaDBeeF is a lightweight graphical music player created for easy playback of music and management of playlists. It supports major audio codecs and tags, global hotkeys, gapless playback, streaming audio, command line control, and has an 18-band equalizer.
Quod Libet is a Gapless GTK+-based audio player written in Python. Its designed around the idea that you know how to organize your music better than we do. It lets you make playlists based on regular expressions (dont worry, regular searches work too).
Amarok is a powerful music player for Linux, Unix and Windows with an intuitive interface. It makes playing the music you love and discovering new music easier than ever before - and it looks good doing it!