Wikimedia Open Source

Wikimedia Open Source
Featured
MediaWiki
PHP, JS
The collaborative editing engine that runs Wikipedia.
Project homepage
Source code
Documentation
Code documentation (PHP)
Code documentation (JS)
PhpMetrics report
Test coverage
Parsoid
PHP
Two-way MediaWiki wikitext↔HTML parser.
Project homepage
Source code
Documentation
VisualEditor
JS
Rich text visual editor for the browser with a MediaWiki integration. WYSIWYG, based on HTML5+RDFa and ContentEditable.
Project homepage
Demo
Source code (standalone)
Code documentation (standalone)
Code coverage (standalone)
Source code (MediaWiki integration)
Code documentation (MediaWiki integration)
Code coverage (MediaWiki integration)
Localisation
banana-i18n
JS, Vue, React
Internationalization library that uses "banana" format - A JSON based localization file format.
Project homepage
Source code
JavaScript package (npm)
React package (npm)
Vue package (npm)
Bcp47Code
PHP
A simple interface representing a language object which can be represented by a BCP 47 code.
Project homepage
Source code
Package (Composer)
Documentation
CLDRPluralRuleParser
PHP
Parse CLDR plural rules from Unicode.
Project homepage
Source code
Documentation
Package (Composer)
cldrpluralruleparser.js
JS
Parse CLDR plural rules from Unicode.
Project homepage
Source code
CSSJanus
JS
Convert stylesheets from left-to-right to right-to-left.
Project homepage
Source code
Documentation
Demo
IPAValidator
PHP
Composer package for validating and normalizing IPA
Source code
Package (Composer)
jQuery.i18n
JS
Interface text localisation with support for CLDR plural rules, language fallbacks, Banana JSON files, and more.
Project homepage
Source code
language-data
JS, PHP
Language related data based on CLDR and utility libraries to interact with that data
Project homepage
Source code
Package (Composer)
Package (npm)
php-cssjanus
PHP
Convert stylesheets from left-to-right to right-to-left. (PHP port)
Project homepage
Source code
Documentation
Demo
Package (Composer)
Test coverage
UnicodeJS
JS
String manipulation based on Unicode standard word breaks, graphemes, and character classes.
Project homepage
Source code
Documentation
utfnormal
PHP
Unicode normalization routines to produce NFC/UTF-8 strings.
Project homepage
Source code
Documentation
User experience
Codex
JS, Vue, CSS
Design and build accessible and internationalization-ready user interfaces with the Wikimedia Design System. Features Vue 3 and CSS-only components.
Source code
Documentation
Package (npm)
Codex Design Tokens
CSS, Less, Sass, JSON
Stylesheets in various flavors and JSON containing Wikimedia Design style values.
Project homepage
Documentation
Source code
Package (npm)
Codex Icons
SVG, Less
Codex icons in 'WikimediaUI' theme style as Less vars with SVG paths for Vue 3 apps.
Project homepage
Documentation
Source code
Package (npm)
Codex PHP (Beta)
PHP
A PHP library for generating Codex CSS-only component markup using a builder-based methodology.
Source code
Documentation
OOUI
JS, PHP
Rapidly create web-applications in JS or PHP. Cross-browser, i18n and a11y ready.
Project homepage
Source code
Demo
Code documentation (JS)
Code documentation (PHP)
Package (npm)
Package (Composer)
Apps
Who Wrote That
JS
Explore authorship and revision informationon Wikipedia with this browser app.
Project homepage
Firefox Add-on Store
Chrome Web Store
Source code
Wikipedia for Android
Java
The official Wikipedia app.
Project homepage
Source code
Google Play Store
Contributing
Wikipedia for iOS
Swift
The official Wikipedia app.
Project homepage
Source code
Apple App Store
Contributing or Beta testing
Libraries
AhoCorasick
PHP
Efficient searching for multiple keywords in a string using the Aho-Corasick algorithm.
Project homepage
Source code
Documentation
Package (Composer)
Alea
PHP
Pure PHP port of the JavaScript alea.js seedable pseudo-random number generator library.
Project homepage
Source code
Documentation
Package (Composer)
Assert
PHP
Run-time assertions for parameter types, preconditions and postconditions.
Project homepage
Source code
Documentation
Package (Composer)
at-ease
PHP
Safe alternative to PHP's error-control operator.
Project homepage
Source code
Documentation
base-convert
PHP
Convert arbitrarily-length strings from one numeric base to another.
Project homepage
Source code
Documentation
Package (Composer)
CDB
PHP
Fast and highly reliable key-value database file format.
Project homepage
Source code
Documentation
Package (Composer)
Test coverage
clover-diff
PHP
A PHP tool to diff two clover.xml files
Source code
Documentation
Package (Composer)
CommonPasswords
PHP
A list of common passwords implemented to provide NIST best practices of preventing usage of the 100,000 most used passwords.
Project homepage
Source code
Documentation
Package (Composer)
css-sanitizer
PHP
CSS parser in pure PHP to transform or filter stylesheets.
Project homepage
Source code
Documentation
DeadlinkChecker
PHP
A PHP library for checking if a given url is dead or alive
Project homepage
Source code
Package (Composer)
Dodo
PHP
DOm DOcument implementation in pure PHP
Project homepage
Source code
Documentation
Package (Composer)
Equivset
PHP
Detect visually similar UTF-8 characters, partially based on Unicode Confusables.
Project homepage
Source code
Documentation
Package (Composer)
HtmlFormatter
PHP
Transformations for MediaWiki HTML output, based on libxml2.
Project homepage
Source code
Documentation
IDLeDOM
PHP
DOM interfaces generated from WebIDL
Project homepage
Source code
Documentation
Package (Composer)
IPSet
PHP
Efficient matching of IP addresses against CIDR specifications.
Project homepage
Source code
Documentation
Package (Composer)
IPUtils
PHP
Parsing and formatting of IPv4/IPv6 addresses and CIDR ranges.
Project homepage
Source code
Documentation
Package (Composer)
jQuery Client
JS
A minimal user-agent parser for client-side JavaScript.
Project homepage
Source code
Documentation
Test coverage
JsonCodec
PHP
Interfaces to serialize and deserialize PHP objects to/from JSON
Source code
Documentation
Package (Composer)
LangConv
PHP
FST-based implementation of language and script conversion.
Project homepage
Source code
Documentation
Package (Composer)
Message
PHP
Interfaces to define i18n messages in a MediaWiki-compatible way.
Project homepage
Source code
Documentation
Package (Composer)
Minify
PHP
Minification of JavaScript code and CSS stylesheets.
Project homepage
Source code
Documentation
Package (Composer)
mwbot-rs
Rust
framework for writing MediaWiki bots and tools in Rust
Project homepage
Source code
Documentation
Package (Cargo)
mwseaql
Rust
MediaWiki table definitions for sea-ql
Project homepage
Source code
Documentation
Package (Cargo)
NormalizedException
PHP
A minimal library to facilitate PSR-3-friendly exception handling
Project homepage
Source code
Documentation
Package (Composer)
oauthclient-php
OAuth client for Wikipedia and other MediaWiki sites.
Project homepage
Source code
Documentation
Package (Composer)
ObjectFactory
PHP
Construct objects based on a static description.
Project homepage
Source code
Documentation
OOjs
JS
Create, extend and mixin classes with JavaScript.
Project homepage
Source code
Documentation
phan-taint-check-plugin
PHP
A Phan plugin meant to use static analysis to find certain types of security vulnerabilities in PHP code
Project homepage
Source code
Live demo
Package (Composer)
php-session-serializer
PHP
Provides methods that work like PHP's session_encode and session_decode functions but don't mess with the $_SESSION superglobal.
Project homepage
Source code
Documentation
Purtle
PHP
Fast streaming RDF serializer for PHP.
Project homepage
Source code
Documentation
Package (Composer)
RelPath
PHP
Compute the relative path between two file paths.
Project homepage
Source code
Documentation
Package (Composer)
RemexHtml
PHP
Fast HTML5 parser in pure PHP.
Project homepage
Source code
Documentation
Package (Composer)
RequestTimeout
PHP
Provides a global request timeout concept, ideally using Excimer, with a fallback to set_time_limit()
Source code
Documentation
Package (Composer)
RunningStat
PHP
Compute statistics for a stream of numbers using only constant space.
Project homepage
Source code
Documentation
ScopedCallback
PHP
Invoke a callback automatically after an object goes out of scope.
Project homepage
Source code
Documentation
Services
PHP
Generic service container to manage named services using lazy instantiator callbacks.
Project homepage
Source code
Documentation
Shellbox
PHP
Web service for containerized shell execution.
Project homepage
Source code
Documentation
TextCat
PHP
PHP port of the TextCat language guesser utility
Project homepage
Source code
Live demo
Package (Composer)
Timestamp
PHP
Create, parse, and format timestamps.
Project homepage
Source code
Documentation
WaitConditionLoop
PHP
Poll a condition and manage code execution between checks.
Project homepage
Source code
Documentation
Package (Composer)
WebIDL
PHP
Parser for Web IDL, a language to specify web APIs in interoperable way
Source code
Documentation
Package (Composer)
Wikimedia SlimApp
PHP
Source code
Documentation
WrappedString
PHP
Merge similarly formatted strings.
Project homepage
Source code
Documentation
XMPReader
PHP
Documentation
Source code
Zest
PHP
Port of the zest.js CSS selector library
Project homepage
Source code
Documentation
Package (Composer)
Infrastructure
Arc Lamp
Python, PHP
Gather stack traces from a PHP 7 app with Excimer and publish them as flame graphs and trace logs.
Project homepage
Source code
Package (Composer)
Blubber
Go
BuildKit frontend for building application container images from a minimal set of declarative constructs in YAML.
Documentation
Source code
coal
Python
Process performance beacons and submit moving medians directly to Graphite.
Project homepage
Source code
Cumin
Python
Framework for remote command execution.
Documentation
Source code
Discovery Parent Pom
java
Maven parent pom for Wikimedia
Documentation
Source code
DNS
Wikimedia DNS zones and GeoDNS configuration.
Project homepage
docker-pkg
Python
Manage creation and updating of Docker images in a unified way.
Project homepage
Source code
ecs
WMF Common Logging Schema based on Elastic Common Schema
Source code
Documentation
Excimer
C, PHP
Low-overhead interrupting timer and sampling profiler for PHP.
Project homepage
Documentation
Source code
Package (Debian)
Fresh
Shell
Shell environment for frontend development.
Project homepage
Source code
Gearman Java
Java implementation of the Gearman protocol
Documentation
Source code
homer
Python
Configuration manager for network devices.
Project homepage
Source code
homer-public
YAML, Jinja2
Configuration files for Homer (configuration manager for network devices).
Project homepage
Source code
less.php
PHP
Less processor for PHP.
Project homepage
Source code
Documentation
Package (Composer)
Test coverage
LuaSandbox
C, PHP
Safely execute untrusted Lua 5.1 code, natively from PHP or HHVM.
Project homepage
Source code
Documentation
Documentation (php.net)
Package (Debian)
Package (PECL)
MediaWiki-Vagrant
Puppet
Portable MediaWiki development environment.
Project homepage
Source code
Documentation
navtiming
Python
Process web beacons with performance data and submit aggregate metrics to Statsd.
Project homepage
Source code
PipelineLib
Groovy
Container-based CI workflow specification and task runner.
Project homepage
Source code
Documentation
Groovy API
PoolCounter
Lock manager service which provides mutex-like functionality, with a limited wait queue length.
Project homepage
Documentation
Source code
Package (Debian)
Puppet
Server provisioning and configuration for Wikimedia Foundation production.
Project homepage
Source code
Development manual
Code documentation
Quibble
Python
Test runner for MediaWiki.
Project homepage
Source code
Documentation
Release Engineering
Diagrams for WMF CI and deployment systems.
Project homepage
RESTBase
Project homepage
Scap
Python
The deployment tool used by Wikimedia Foundation.
Project homepage
Source code
Scap2 manual
Scap3 manual
search-extra
Java
Elasticsearch plugin, used by CirrusSearch.
Source code
Documentation
search-highlighter
Java
Elasticsearch plugin, used by CirrusSearch.
Source code
Documentation
Spicerack
Python
Task orchestration framework, based on Cumin.
Project homepage
Source code
Cookbooks API
SRE Cookbooks
Python
Collection of Spicerack cookbooks for WMF production infrastructure.
Project homepage
tox-jenkins-override
Python
Tox v4 plugin to restore [tox:jenkins]
Source code
Documentation
transferpy
Python
Tool that can move large files over the network and backup mariadb servers.
Source code
Documentation
Wikidata Query Service
Java
Documentation
wikidiff2
C, PHP
Fast diff engine for MediaWiki.
Project homepage
Documentation
Source code
Issue tracker
wmerrors
C, PHP
Extended error handling and display.
Project homepage
Source code
Issue tracker
wmflib
Python
Generic Python library for common tasks in the WMF production infrastructure.
Project homepage
Source code
Testing
eslint-config-wikimedia
JS
JavaScript style guide for Wikimedia software.
Project homepage
Source code
eslint-plugin-mediawiki
JS
ESLint rules for MediaWiki-specific JavaScript idioms.
Project homepage
Source code
eslint-plugin-no-jquery
JS
Control allowance of certain jQuery functions, and suggest or autofix alternatives.
Project homepage
Source code
Fresnel
JS
Measure and compare performance of web pages.
Project homepage
Source code
Documentation
Package (npm)
Test coverage
grunt-stylelint
JS
Stylelint adapter for the Grunt task runner.
Project homepage
Source code
Package (npm)
MediaWiki API testing
JS
A library for end-to-end integration tests of MediaWiki APIs
Project homepage
Documentation
Source code
stylelint-config-wikimedia
JS
CSS style guide for Wikimedia software.
Project homepage
Source code
testing-access-wrapper
PHP
Convenient shortcuts for accessing protected or private properties and methods.
Project homepage
Source code
Documentation
MediaWiki components
CirrusSearch
Elasticsearch integration for MediaWiki.
Project homepage
Code documentation
Cite
Project homepage
Code documentation (JS)
CodeMirror
JS, PHP
Syntax highlighting for MediaWiki editors
Project homepage
Code documentation (JS)
EventLogging
Project homepage
Source code
Code documentation
GlobalWatchlist
Project homepage
Source code
Code documentation (PHP)
Code documentation (JS)
GrowthExperiments
Project homepage
Source code
Frontend code documentation (JS)
GuidedTour
Project homepage
Source code
Code documentation
Kartographer
Add map capabilitity to wiki pages.
Project homepage
Source code
Code documentation (PHP)
Code documentation (JS)
MinervaNeue skin
Project homepage
Code documentation (PHP)
Code documentation (JS)
MobileFrontend
Project homepage
Source code
Storybook
Code documentation (JS)
Code documentation (PHP)
MultimediaViewer
JS
Project homepage
Source code
Code documentation
Popups
JS
Project homepage
Source code
Storybook
Code documentation (JS)
Code documentation (PHP)
TemplateData
Project homepage
Source code
Code documentation
TimedMediaHandler
JS
Allows you to display audio and video files in wiki pages
Project homepage
Source code
Code documentation
Vector skin
Project homepage
Storybook
Code documentation (PHP)
Code documentation (JS)
Wikibase
The knowledge base for linked open data that runs Wikidata.org.
Project homepage
Source code
Code documentation
WikibaseLexeme documentation
Storybook (Termbox)
dist-size (Data-Bridge)
dist-size (Tainted-Ref)
WikiLambda
Letting users create, manage, and evaluate functions on a wiki, wikifunctions.org.
Project homepage
Source code (MW extension)
Code documentation (MW JS)
Code documentation (MW PHP)
Test coverage (MW JS)
Test coverage (MW PHP)
Source code (orchestrator)
Test coverage (orchestrator)
Source code (evaluator)
Test coverage (evaluator)
Source code (shared schemata)
Test coverage (shared schemata)
Analytics
analytics.wikimedia.org
HTML
Dashboards and data downloads for Wikimedia projects.
Live link
Source code
Analytics API Documentation
Open access to data about Wikipedia and other Wikimedia projects.
Live link
Source code
Microsites
annual.wikimedia.org
HTML
Annual report.
Live link
Source code
Documentation
developer.wikimedia.org
HTML
Portal for Wikimedia developers.
Live link
Source code
Documentation
integration.wikimedia.org
HTML
Doc and Coverage reports.
Live link
Source code
performance.wikimedia.org
HTML
Metrics, flame graphs, profiles.
Live link
Source code
Documentation
research.wikimedia.org
HTML
Research landing page.
Live link
Source code
Documentation
stats.wikimedia.org
HTML, JS
Wikistats 2.0.
Live link
Source code
transparency.wikimedia.org
HTML
Transparency report.
Live link
Source code
Documentation
www.wikipedia.org
HTML
Portal for Wikipedia.org and other Wikimedia projects.
Live link
Source code
Documentation