MediaWiki Language Extension Bundle

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Outdated translations are marked like this.

El Paquete de extensión de idioma de MediaWiki (MLEB por sus siglas en inglés) es un conjunto de extensiones de MediaWiki que ofrece características multilingües. Está pensado para proveer una manera fácil de brindar soporte completo de idiomas a MediaWiki.

Visión general de las extensiones

La versión actual de MLEB contiene seis extensiones:


MLEB tiene un calendario de publicación trimestral, por lo que puede mantenerse a la vanguardia con el soporte de idiomas en constante mejora. El paquete es testeado en las nuevas versiones recientes de MediaWiki, así que puedes evitar muchas de las roturas temporales que podrían pasar si estabas usando las últimas versiones de desarrollo de cada extensión.


The Universal Language Selector is a must have, because it provides an essential functionality for any user regardless of the number of languages they speak: language selection, font support for displaying scripts badly supported by common operating systems, and input methods for typing languages that don't use the Latin alphabet. Incluye fuentes con licencias libres, las cuales abarcan la mayoría de los idiomas de América, Europa, Oriente Medio, India y el Sureste asiático.

Maintaining multilingual content in a wiki is a mess without the Translate extension, which is used by Wikimedia Foundation, KDE, and other sites.

The Clean Changes extension keeps your recent changes page uncluttered from translation activity and other clutter.

Don't miss the chance to practice your rusty language skills: Use the Babel extension to mark the languages you speak and find other speakers of the same language in your wiki. And, finally, the cldr extension is a database of language and country translations.

Release notes and downloads

Latest release

  • Translate extension: Fix broken Special:SpecialPages for MediaWiki 1.40, and 1.39 (task T351959).

Previous releases

  • Translate extension: Removed mirrors option when providing configuration for translation memory.
  • This release of MLEB now requires MediaWiki >= 1.39
  • This is the last release of MLEB supporting MediaWiki >= 1.38
  • MLEB now requires PHP >= 7.4 and MediaWiki >= 1.38
  • [SECURITY] Translate: Adds missing block checks to various pages and API (task T302479, Gerrit change 838940)
  • This will be the last MLEB release supporting PHP 7.3 and MediaWiki 1.37
  • LocalisationUpdate extension is removed from MediaWiki Language Extension Bundle. Please read the announcement.
  • We're planning to sunset the LocalisationUpdate extension from version 2022.07. Please read the announcement.
  • If you are using translation memory with ElasticSearch backend, we recommend rebuilding the translation memory index. This can be done by running php <path_to_mediawiki_core>/extensions/Translate/scripts/ttmserver-export.php

Show all releases.

Downloading with Git

In your extensions directory do the following to get or update to the latest release and follow configuration instructions below.

 for ext in Babel cldr CleanChanges Translate UniversalLanguageSelector
   if [ ! -d "$ext" ]
     git clone$ext.git
   cd $ext; git fetch --tags; git checkout 2023.12; cd ..


Installation requirements

Installation requirements of each piece of provided software are included in the respective documentation. See in particular the installation requirements.

Add/update your LocalSettings.php

Near the end of LocalSettings.php, you have to place this configuration:

wfLoadExtension( 'Babel' );

wfLoadExtension( 'cldr' );

wfLoadExtension( 'CleanChanges' );
$wgCCTrailerFilter = true;
$wgCCUserFilter = false;
$wgDefaultUserOptions['usenewrc'] = 1;

wfLoadExtension( 'Translate' );
$wgGroupPermissions['user']['translate'] = true;
$wgGroupPermissions['user']['translate-messagereview'] = true;
$wgGroupPermissions['user']['translate-groupreview'] = true;
$wgGroupPermissions['user']['translate-import'] = true;
$wgGroupPermissions['sysop']['pagetranslation'] = true;
$wgGroupPermissions['sysop']['translate-manage'] = true;
$wgTranslateDocumentationLanguageCode = 'qqq';
$wgExtraLanguageNames['qqq'] = 'Message documentation'; # No linguistic content. Used for documenting messages

wfLoadExtension( 'UniversalLanguageSelector' );

Update database tables

Command line

In the directory where your LocalSettings.php is located, run the following command:

php maintenance/update.php

Web browser

Go to (see Manual:Upgrading#Web browser) by using your domain and path and rerun install.

Configuring and using extensions

See the respective extension documentation pages.


MLEB does not use version-specific branches of extensions. It's a snapshot from master which is verified to be working with the specified MediaWiki releases. This means all MLEB extensions must follow the compatibility policy of supporting two latest stable MediaWiki releases in the master branch.

MLEB releases are created with a tool called Melange. If you are interested in that code (e.g. you want to change its code), see the Melange repository in Git. We may drop support for EOL versions of PHP, but will have at least one compatible version for each MediaWiki version we support.


  1. LocalisationUpdate is no longer part of MLEB since 2022.07 release.