Columns UI is an alternative skinnable user interface for the Foobar2000 audio player.
- Playlist view with columns, grouping and artwork
- In-line metadata editing
- Customizable layout through interchangeable panel and toolbar components
- Built-in panels: playlist view, artwork view, filter, item details, item properties, playlist list, playlist tabs, tab stack
- Built-in toolbars: menu, buttons, seekbar, playback order, volume, spectrum analyzer
- Extensible through official and third-party panel and toolbar components