Quod Libet

Quod Libet is a cross-platform audio and music management program. It combines a player, library manager, and editor in one app for people who want to organize, search, and edit a personal collection.

It offers many ways to view local libraries, plays streaming audio and podcast feeds, and provides extremely flexible metadata editing and searching. Over 90 included plugins extend and integrate it with other tools, and you can write your own plugins in Python.

Ex Falso ships alongside it as a bare-bones tag editor with the same editing interface. Quod Libet runs on Linux, Windows, and macOS, with release builds and source available.