Quod Libet (software)

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Free and open source audio player

title: "Quod Libet (software)" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["2004-software", "applications-using-d-bus", "audio-software-with-jack-support", "audio-player-software-that-uses-gtk", "cross-platform-free-software", "free-audio-software", "free-media-players", "free-software-programmed-in-python", "linux-media-players", "macos-multimedia-software", "software-that-uses-pygobject", "tag-editors-for-linux", "windows-multimedia-software", "tag-editors-that-use-gtk", "tag-editors", "gnome-applications", "software-using-the-gnu-general-public-license"] description: "Free and open source audio player" topic_path: "technology/operating-systems" source: "https://en.wikipedia.org/wiki/Quod_Libet_(software)" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Free and open source audio player ::

::data[format=table title="Infobox software"]

Field	Value
name	Quod Libet
logo	Quodlibet logo.svg
screenshot	Quodlibet_3.0.png
caption	Screenshot of Quod Libet's paned main browser window (dark theme).
developer	Quod Libet Team{{cite web
url	https://code.google.com/p/quodlibet/people/list
title	Quod Libet Team page
access-date	20 August 2011}}
released	{{cite web
url	https://quodlibet.readthedocs.org/en/latest/changelog.html
title	Changelog}}
latest release version
latest release date
latest preview version
latest preview date
repo
programming language	Python (PyGObject)
operating system	Windows, macOS, Linux
size	{{Plainlist
genre	Audio player
license	GPL-2.0-or-later{{cite web
url	https://quodlibet.readthedocs.org/en/latest/license.html
title	Quod Libet License page
access-date	21 May 2013}}
website
::

| name = Quod Libet | logo = Quodlibet logo.svg | screenshot = Quodlibet_3.0.png | caption = Screenshot of Quod Libet's paned main browser window (dark theme). | developer = Quod Libet Team{{cite web | url = https://code.google.com/p/quodlibet/people/list | title = Quod Libet Team page | access-date = 20 August 2011}} | released = {{cite web | url = https://quodlibet.readthedocs.org/en/latest/changelog.html | title = Changelog}} | latest release version = | latest release date = | latest preview version = | latest preview date = | repo = | programming language = Python (PyGObject) | operating system = Windows, macOS, Linux | size = {{Plainlist|

Windows: 36.6 MB
macOS: 41.0 MB
Linux: 4.23 MB}} | genre = Audio player | license = GPL-2.0-or-later{{cite web | url = https://quodlibet.readthedocs.org/en/latest/license.html | title = Quod Libet License page | access-date = 21 May 2013}} | website =

Quod Libet is a cross-platform free and open-source audio player, tag editor and library organizer. The main design philosophy is that the user knows how they want to organize their music best; the software is therefore built to be fully customizable and extensible using regular expressions and boolean logic. Quod Libet is based on GTK and written in Python, and uses the Mutagen tagging library.

Quod Libet is very scalable, able to handle libraries with tens of thousands of songs. It provides a full feature set including support for Unicode, regular expression searching, key bindings to multimedia keys, fast but powerful tag editing, and a variety of plugins.

Quod Libet is available on most Linux distributions, macOS and Windows, requiring only PyGObject, Python, and an Open Sound System (OSS), ALSA or JACK compatible audio device. The XFCE desktop ISO image provided by the Debian project installs Quod Libet as the default audio player.

Quod Libet's tag-editing and library organization features are also available through a standalone program, Ex Falso, which is based on the same code and libraries as Quod Libet.

Features

::figure[src="https://upload.wikimedia.org/wikipedia/commons/a/a0/Ex_Falso_Screenshot.png" caption="Ex Falso]], allows any tag to be changed as well as any file to be renamed or moved."] ::

Audio playback

Can deal with various audio back-ends via the plug-in architecture of GStreamer
Supports ReplayGain with smart selection based on either a single track or full album, based on the current view and play order
'Real' shuffle mode- entire playlist played before repeating
Ratings weighted random playback setting
Configurable play queue

Tag editing

Complete Unicode support
Changes to multiple files at once, even if files are in different formats
Ability to tag files based on filenames with fully configurable formats
Customizable renaming of files based on their tags and a user-supplied format
Human readable tag references, e.g. or rather than %a or %t, with support for "if not-null x else y" logic (e.g. ``)
Fast track renumbering
Add / edit bookmarks within files

Audio library

Audio Feeds / Podcast support
Authenticated SoundCloud support
Can save play counts
Can download and save lyrics
Fast refreshing of the entire library based on changed files
Internet Radio / SHOUTcast support
Configurable song rating

User interface

::figure[src="https://upload.wikimedia.org/wikipedia/commons/f/f7/Quodlibet-screenshot-custom-display.jpg" caption="Screenshot demonstrating Quod Libet's capabilities to organize and display audio files with custom tags."] ::

Configurable interface to suit user preferences; Pango markup is used so that the user can display tags in any way desired in the player
Launch additional "browsers" to keep different or multiple views on the library
Drag-n-drop support throughout the interface.
Tray icon with full player control
Automatically recognize and display tags from many uncommon tags
Customisable Aggregation across albums or playlists (min, max, average, sum, Bayesian average)
Multiple ways to browse the library:
- Progressive search - the library is filtered as searches are typed
- Queries support boolean logic, numerical / date-based expressions, regular expressions, and synthetic tags, that are derived internally (e.g. play count, rating, inclusion in a playlist).
- Playlists with integration throughout the player
- Paned browser, using any fully customizable tags (e.g. genre, date, album artist...), allowing the user to [drill down] through their library as they prefer
- View by album list with cover art
- View by file-system directory, which includes songs not in your library

File formats

Include MP3, Ogg Vorbis, Opus, FLAC, ALAC, Musepack, MOD/XM/IT, WMA, Wavpack, MPEG-4 AAC

Unix-like control and query mechanisms

Status information is available from the command line
Control of the player using a named pipe (FIFO) is possible
Text-based files available with current song information

Plugins

Quod Libet is currently bundled with over 80 Python-based plugins, including:

Automatic tagging via MusicBrainz and CDDB
Download and preview album art from a variety of online sources
On-screen display pop-ups
Last.fm/AudioScrobbler submission
Tag character encoding conversion
Intelligent title-casing of tags
Finding duplicate or near-duplicate songs across the entire library
Scan and save Replay Gain values across multiple albums at once (using GStreamer)
D-Bus-based Multimedia Shortcut Keys
Integrate with Sonos systems and Logitech Squeezebox
Export playlists to common formats (PLS, M3U, XSPF)
Publish to MQTT queues

References

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::