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)