Extensions

These extensions are in use by various wikis on Gamepedia.

• Default extensions load for all wikis.
• Allowed extensions can be set to load for those that need them.
• Forbidden extensions may never be used as they may cause undesirable behavior with the wiki farm setup.

For information on requesting extensions on a specific wiki, see Requesting extensions.

List of available extensions

Extension	External link	Default?	UCP?	GP?	Description	More info (limit 3 subpages shown)
AbuseFilter	MediaWiki.org	Y	Y		Allows privileged users to set specific actions to be taken when actions by users, such as edits, match certain criteria.
AllSites	GitLab	Y	N		Stats and list of all sites that are part of the Hydra wiki farm.
Approved Revs	MediaWiki.org		Y		Allows administrators to mark a certain revision of a page as "approved".
Arrays	MediaWiki.org		Y		Creates an additional set of parser functions that operate on arrays.
AudioButton	GitHub		Y		Creates a one-button play/pause toggle for an uploaded audio file.	Example
Babel	MediaWiki.org		Y		Aids multilingual communication by making it easier to contact someone who speaks a certain language
BoilerRoom	MediaWiki.org		Y		Allows wiki users to create boilerplate text in the Boilerplate namespace which can then be used on new pages.	Creating boilerplates for BoilerRoom, Example, Using the BoilerRoom box
CacheBreaker	GitLab	Y	N		Automatically adds cache breaking URL pieces to media.
Cargo	Mediawiki:Cargo	N	Y		An extension that allows for the storage and querying of data contained within templates.	attaching tables, customizing tables, Lua example
CategorySkins	GitLab	N	Y		Apply custom skins to pages according to category membership
CategoryTree	MediaWiki.org	Y	Y		Dynamically navigate the category structure	Example
Category Intersection	GitLab		Y		Displays category intersections in the Intersection namespace.
Character Escapes	MediaWiki.org		Y		Provides a convenience tag for escaping tags, templates, magic words, and parser function calls nested in tags and parser functions that support character escaping
CharInsert	MediaWiki.org		?		Allows creation of JavaScript box for inserting non-standard characters	Example
CheckUser	MediaWiki.org	Y	Y		Grants users with the appropriate permission the ability to check user's IP addresses and other information.
Cheevos	GitLab	Y	Y		Awards achievements to editors for varying levels of accomplishments.
CirrusSearch	MediaWiki.org	Y	N		Implements searching for MediaWiki using Elasticsearch. Replaced by Extension:UnifiedSearch on UCP.
Cite	MediaWiki.org	Y	Y		Adds <ref[ name=id]> and <references/> tags, for citations	Example
ClaimWiki	GitLab	Y	Y		Used for claiming a wiki as a winged guardian to help nurture it into a beautiful flower.
CLDR	MediaWiki.org		?		Contains local language names for different languages, countries, currencies, and time units extracted from CLDR data
CleanChanges	MediaWiki.org	N	Y		Based on enhanced changes list, but it tries to be more concise by hiding less important information by default.
CodeEditor	MediaWiki.org	Y	Y		Extends the WikiEditor advanced editing toolbar with an embedded Ace editor widget for editing code
CodeMirror	MediaWiki.org	Y	Y		Provides syntax highlighting in MediaWiki's wikitext editor.
CollapsibleVector	MediaWiki.org	Y	Y		Adds collapsible sections to the sidebar in default Hydra and HydraDark skins.
Countdown			Y		Allows the placement of a countdown ticker.
Crusher	GitLab		Y		Crush things that don't behave
CurseProfile		Y	Y		A modular, multi-featured user profile system.
CurseTwitter	GitLab	Y	?		Allows embedding twitter feeds.	Example
DeleteBatch	MediaWiki.org		Y		Adds a special page where users with the deletebatch right can delete multiple pages easily.
Description2	MediaWiki.org		?		Adds a description meta tag for articles automatically based on the content.
Disambiguator	MediaWiki.org	Y	Y		Adds the tag __DISAMBIG__ to mark disambiguation pages.
DPL3	Community Central MediaWiki.org GitLab	N	Y		A highly flexible report generator for MediaWikis	Bug reporting and feature requests, Compatibility, Dplchapter
DPLforum	MediaWiki.org		Y		Displays forum-style layouts
Drafts	MediaWiki.org	N	Y		Adds the ability to save a draft of a page on the server while editing
DynamicSettings	GitLab	Y	N		Wiki Farm management tool for the Hydra Platform.
EasyTimeline	MediaWiki.org	Y	Y		Adds <timeline> tag to create timelines	Example
Editcount	MediaWiki.org		Y		Adds a special page that displays edit counts
EmbedVideo	MediaWiki.org GitLab	Y	Y		Adds a parser function embedding video from popular sources.	Example
ExcludeRandom	MediaWiki.org	N	Y		Allows pages to be excluded from Special:Random
FlaggedRevs	MediaWiki.org	N	Y		Gives Editors the ability to review revisions and stabilize pages	Styling
Gadgets	MediaWiki.org		Y		Provides a way for users to pick JavaScript or CSS based "gadgets" that other wiki users provide.
GlobalBlock	GitLab	Y	?		Manage global blocks for anonymous and registered accounts.
Header Tabs	MediaWiki.org		Y		Adds tabs to the page separating top-level sections.	Example
HeaderCount	MediaWiki.org	N	Y		Adds a simple parser function for obtaining the number of headers, or sections, in a page
HighlightLinksInCategory	MediaWiki.org	N	Y		Adds a CSS class to links pointing to members of a category.
HydraAuth		Y	?		Central user authentication for the Hydra Wiki Platform.
HydraCore		Y	?		Core functionality for Hydra Wiki Platform extensions.
Hydralytics	GitLab	Y	Y		Hydra Wiki Platform Analytics
ImageMap	MediaWiki.org		?		Allows client-side clickable image maps using <imagemap> tag	Example
ImageSizeInfoFunctions	MediaWiki.org	N	Y		Return image width and height in pixels.	Example
InputBox	MediaWiki.org	Y	Y		Allow inclusion of predefined HTML forms	Example
Interwiki	MediaWiki.org	Y	Y		Adds a special page to view and edit the interwiki table.
InterwikiDispatcher	w:Help:Interwiki link § Linking to another Fandom community	Y	Y		Solves interwiki links to reduce Apache redirects
JavascriptSlideshow	MediaWiki.org	N	Y		Create a slideshow from multiple included div elements	Example
Labeled Section Transclusion	MediaWiki.org	Y	Y		Allows selective transclusion of marked-off sections of text
LinkSuggest	MediaWiki.org	Y	Y		Provides the user with article title suggestions as they type a link in wikitext.
LocalisationUpdate	MediaWiki.org	N	Y		Allows to update the localizations for MediaWiki messages at any time, without needing to upgrade the MediaWiki software.
Loops	MediaWiki.org	N	Y		Provides parser functions for performing loops.
LuaCache	GitLab		Y		Scribunto Lua interface for MediaWiki's Object Cache
MagicNoCache	MediaWiki.org	N	Y		Creates a new magic word __NOCACHE__ and disables the cache for any page in which it finds it.
Math	MediaWiki.org	Y	Y		Render mathematical formulas between <math> ... </math> tags
MobileFrontend	MediaWiki.org	Y	Y		Creates a separate mobile site for the wiki
MsUpload	MediaWiki.org	Y	Y		Enables easy uploads for one file or multiple files simultaneously
MultimediaViewer	MediaWiki.org	N	Y		Expand thumbnails in a larger size in a fullscreen interface	Styling
MyVariables	MediaWiki.org		Y		Adds new built-in variables.	Example
Newest Pages	MediaWiki.org		Y		Provides a flexible dual-use special page which lists the most recently created pages on the wiki.
NoTitle	MediaWiki.org	Y	Y		Adds a magic word to hide the title heading.	Example
Nuke	MediaWiki.org	Y	Y		Gives administrators the ability to mass delete pages.
Numbertext	MediaWiki.org	N	Y		Transforms numbers into words
OpenGraphMeta	MediaWiki.org	Y	Y		Provides OpenGraph protocol metadata for articles on the wiki for 3rd parties like Facebook to extract.
OreDict	GitHub		Y		An extension that mimics the ore dictionary in Minecraft.
Page Forms	MediaWiki.org		Y		Allows users to add, edit and query data using forms.	Useful css
PageImages	MediaWiki.org	Y	?		Collects information about images used on page.
ParserFunctions	MediaWiki.org	Y	Y		Enhance parser with logical functions.	Example
ParserHooks	MediaWiki.org		Y		OOP interface for creating MediaWiki parser hooks in a declarative fashion.
ParserPower	GitLab	N	Y		A collection of extended parser functions for MediaWiki, particularly including functions for dealing with lists of values separated by a dynamically-specified delimiter.	Basic functions and tags, Escape sequences, List handling functions
PDFEmbed	GitLab		Y		Media handler extension for PDF files.	Example
Poem	MediaWiki.org	Y	?		Adds <poem> tag for poem formatting	Example
Popups	MediaWiki.org		Y		Displays popups when users hover over article links and footnote markers
Europa Infobox Theme		Y	Y		Enable a new look for your infoboxes to fully benefit from your wiki's color theme!
PortableInfobox	w:Help:Infoboxes	Y	Y		Create portable infoboxes which can be rendered using clean semantic HTML markup on any skin / platform using using easy to understand powerful XML-like markup
RandomImage	MediaWiki.org GitLab	Y	Y		Provides a random media picker using <randomimage />	Example
RandomSelection	MediaWiki.org		Y		Displays a random option from the given set.	Example
RedisCache	GitLab		?		Redis shim for MediaWiki's PHP Redis implementation and Predis that provides a simple setup.
RegexFunctions	MediaWiki.org		Y		Provides regular expression based parser functions.
Replace Text	MediaWiki.org		?		Allows administrators to do a global string find-and-replace on both the text and titles of the wiki's content pages.
Reverb	GitLab	Y	?		Notification system for MediaWiki and Reverb notification service.
RevisionSlider	MediaWiki.org		Y		Adds a slider interface to the diff view, so that you can easily move between revisions.
Roadblock	GitLab		Y		Provides configuration to display a modal for wikis that have moved.
RSSPie	GitLab	Y	Y		RSS extension based on the SimplePie library.
Scribunto	MediaWiki.org	Y	Y		Framework for embedding scripting languages into MediaWiki pages	HTML Library usage notes
Scryfalllinks	MediaWiki.org	N	Y		Creates Scryfall links from Magic: The Gathering card names.
SearchLogger	GitLab	Y	?		Logs all search terms for data analysis.
SEO	GitLab	Y	?		SEO improvements, including microdata support.
SimpleSort	MediaWiki.org	N	Y		Allows you to sort a list of items, contained in the same string.
SimpleTooltip	MediaWiki.org		Y		Adds support for basic tooltips.
SlideBoxLightShow		Y	Y		Displays a slide show that can also pop up into a light box style image gallery.
Social	GitLab	Y	?		Provides links to share wiki articles and link associated social profile accounts. Icons provided by Anton Drukarov.
SpamBlacklist	MediaWiki.org	Y	?		Regex-based anti-spam tool
Spoilers	MediaWiki.org		Y		Adds a spoiler tag that will hide a block of text.
SpriteSheet	GitLab		Y		Defines and displays sprite sheets from uploaded files.	Example
Streamer	GitLab		Y		Display information about a streamer from various streaming services.
SubPageList	MediaWiki.org		Y		Allows to list and count subpages.	Example
Subscription	GitLab	Y	?		Paid subscription system for Hydra Wiki Platform.
SyncService	GitLab	Y	?		Distributed job queue for MediaWiki with a Redis backend.
SyntaxHighlight	MediaWiki.org	Y	Y		Provides syntax highlighting <syntaxhighlight> using Pygments - Python syntax highlighter	Styling
Tabber	MediaWiki.org		Y		Allows to create tabs within a page.	Example
TemplateData	MediaWiki.org	Y	Y		Introduces a <templatedata> tag and an API which together allow editors to specify how templates should be invoked.
TemplateSandbox	MediaWiki.org		Y		Adds the ability to preview a page using sandboxed versions of templates
TextExtracts	MediaWiki.org	Y	?		Provides plain-text or limited HTML extracts of page content
ThanksMeToo	MediaWiki.org		?		Adds a quick way to give positive feedback for productive contributions to MediaWiki sites.
Tilesheets	GitHub		Y		Adds a parser function that looks up a table for an item and returns the requested image.
TippingOver	GitHub		Y		An extension allowing editors to create tooltips for wiki links using either wiki pages or uploaded images.	Configuration settings, Creating tooltips under default configuration, Customizing tooltip page titles
TitleBlacklist	MediaWiki.org	Y	Y		Allows administrators to forbid creation of pages and user accounts per a blacklist and whitelist.
TopContributors	GitLab	Y	Y		Parser hook extension adds a <topcontributors /> tag to the parser, giving a list of the ten most active users on a wiki	Example
TorBlock	MediaWiki.org		Y		Automatically applies restrictions to Tor exit node's access to the wiki's front-door server.
Translate	MediaWiki.org	N	Y		Special page for translating MediaWiki and beyond
Twiggy	GitLab	Y	?		Adds the Twig template engine to MediaWiki.
UniversalLanguageSelector	MediaWiki.org	N	Y		Allows users to select a language and configure its support in an easy way.
UploadFields	GitLab	N	Y		Add custom fields to Special:Upload to be automatically added to the {{FileInfo}} template on the file pages.
UploadWizard	MediaWiki.org		Y		Upload Wizard, a user-friendly tool for uploading multimedia.
Variables	MediaWiki.org	Y	Y		Parser functions allowing to work with dynamic variables in an article scoped context	Example
VariablesLua	MediaWiki.org		Y		Provides support for the Variables extension in Lua modules by the Scribunto extension.
VisualEditor	MediaWiki.org	Y	Y		Visual editor for MediaWiki	FAQ
Widgets	MediaWiki.org		Y		Allows wiki administrators to add free-form widgets to the wiki by editing pages within the Widget namespace. Community-contributed widgets can be found on MediaWikiWidgets.org
WikiEditor	MediaWiki.org	Y	Y		Provides an extendable wikitext editing interface and many feature-providing modules.
WikiHiero	MediaWiki.org		Y		Adds <hiero> tag to display hieroglyphs.	Example

Custom extensions for specific wikis

Guild Wars

• GuildWikiSkills

Guild Wars PvX

• PvX Code Parser
• PvX Rate

MTG

• Scryfalllinks

World of Warcraft

• DefaultLinks
• UsingData

Removed extensions

• Comments – Duplicated the functionality of talk pages
• Contribution Scores – Functionality included in WikiPoints.
• GraphViz - Broken with MediaWiki 1.33 and was not used.
• Maps – Not updated to use wfLoadExtension.
• MTGSCards - Deprecated in favor of Scryfalllinks.
• News – Use rss instead.
• PvX Vote – No longer used.
• Random In Category – Massively out of date.
• SoundManager2Button – Replaced by AudioButton.
• SmoothGallery - Use MediaWiki's built-in gallery or SlideBoxLightShow.
• StrawPoll - extension has gone into maintenance mode and their upcoming changes make it incompatible with Gamepedia.
• TwitterFBLike - Use Widgets instead with Twitter Follow Button and Facebook Like Button.
• UserSigProtection - Not used/needed.
• Validator – It is now installed as a composer package by Semantic MediaWiki.
• WinFilenameFix - Not needed anymore, fixed with built-in MediaWiki functionality.
• YouTube – Functionality included in EmbedVideo.

Forbidden extensions

• CSS - bypasses normal restrictions on CSS editing.
• MultiUpload - Security problems with MediaWiki 1.19+
• Renameuser - HydraAuth is the new authoritative on accounts.
• Semantic MediaWiki - Deprecated in favor of Cargo.
• User Merge and Delete - HydraAuth is the new authoritative on accounts.

Denied extension requests

• DiscordNotifications (GitLab ticket)]] – The code is not suitable for our platform, but we like the functionality. This is something we'd like to investigate doing ourselves in the future.
• EditNotify - Configuration too complex for setup and maintenance.
• External Data – Too many security concerns to allow it.
• FixedHeaderTable (GitLab ticket)]] – We like the idea of the functionality and will implement something similar ourselves.
• GlobalUsage - Requires too much development work to get it working on our platform that we can't invest at this time. We can revisit it in the future, if there's a strong case for it.
• Graph – Requires a NodeJS service just to generate a graph. This is too much just to display graphs.
• Kartographer (GitLab ticket)]] – We'd rather develop an easier to use tool ourselves for mapping.
• NewUserMessage - Twitch login integration does not support MediaWiki account creation tracking.
• NumberFormat - Code quality not up to current MediaWiki standards.
• PageInCat - Buggy code and unmaintained.
• PortableInfobox - Not at this time. Requires more discussion on the future of integrated platforms and features.
  • Extension:PortableInfobox is enabled on all UCP wikis, including Gamepedia ones.
• StructuredDiscussions - Not at this time. Requires more discussion on the future of integrated platforms and features.
• TimedMediaHandler - Functionality included in EmbedVideo.
• UrlGetParameters - Requires caching to be disabled.
• Wikibase - Not at this time. Requires more discussion on the future of integrated platforms and features.