Features

Audio Playback

  • Multiple audio back-ends (GStreamer, xine-lib).
  • JACK output is also supported explicitly (via GStreamer)
  • Rich Replay Gain support. Auto-selects between ‘track’ and ‘album’ mode based on current view and play order
  • Applies clipping prevention whenever available
  • Configurable default (fallback) and pre-amp values to suit any audio setup
  • Multimedia key support
  • Real shuffle mode, that plays the whole playlist before repeating
  • Weighted (by rating) random playback
  • Proper ‘Previous’ support in shuffle mode
  • A configurable play queue

Editing Tags

  • Full Unicode support
  • Make changes to many files at once
  • Make changes across all supported file formats
  • Tag files based on their filenames with configurable formats
  • Rename files based on their tags, with various filters for troublesome characters (especially on Windows)
  • No ugly %a, %t patterns - more readable <artist>, <title> instead
  • Fast track renumbering
  • Add / edit bookmarks within files
  • See full instructions at Editing Tags

Audio Library

  • Hide songs on removable devices that may not always be there
  • Save song ratings and play counts
  • Internet Radio support
  • Audio Feeds (“Podcast”) support
  • Deep playlist support with import / export (XSPF, M3U, PLS)
  • Soundcloud browsing and streaming, with login and native favorites support

User Interface

  • Simple user interface to Just Play Music if you want
  • Themeable, modern, Gnome-friendly UI (dark and light modes supported)
  • Useful as a small window or maximized, no feeling cramped or wasted space
  • Optional high-resolution waveform seekbar (via WaveForm Plugin)
  • Paned View to group / funnel library data with arbitrary tags (e.g. Year -> Genre -> People -> Album)
  • Album cover display in variety of rich layouts
  • Full player control from a tray icon
  • Recognize and display many uncommon tags, as well as any others you want. Especially useful for classical music.
  • Rich CLI support (with quodlibet but also operon)

Library Browsing

  • Simple text-searches (unicode-aware)
  • Or… regular expression searches across tag values or free text
  • Or even… complex structured boolean logic and arbitrary Python code
  • Constructed playlists
  • iTunes/Rhythmbox-like paned browser, but with any tags you want (Genre, Date, etc)
  • Album list with cover art
  • By directory, including songs not in your library

Python-based plugins

Quod Libet has over 80 plugins contributed by devs and users, including:

  • Download high-quality cover art from pluggable sources
  • Automatic tagging via MusicBrainz and CDDB
  • Configurable on-screen display notifications when songs change
  • Last.fm / AudioScrobbler submission
  • Plugins for web lyrics and synchronised (``.lrc`) lyrics viewing
  • A selection of audio-processing (pitch adjust, stereo downmix, EQ)
  • Custom Commands to run shell (think xargs for Quod Libet)
  • Find and remove duplicate / similar tracks across your entire library
  • Intelligent title-casing of tags
  • Find (and examine / remove) near-duplicate songs across your entire collection
  • Audio fingerprinting of music
  • Sync playlists to Sonos devices or Logitech Squeezebox devices.
  • Interface with dBus, MQTT, and other desktop apps too.
  • Scan and save Replay Gain values across multiple albums at once (using gstreamer)

File Format Support

  • MP3, Ogg Vorbis / Speex / Opus, FLAC, Musepack, MOD/XM/IT, Wavpack, MPEG-4 AAC, WMA, MIDI, Monkey’s Audio

UNIX-like integration

  • Player control, status information, and querying of library from the command line
  • Can used named pipes to control running instance.
  • Now-playing is available as a fixed file
  • Rich DBus support (once enabled)