Wikimedia Open Source Wikimedia Open Source Free and open-source software from Wikimedia. HomeFeaturedLocalisationUser experienceAppsLibrariesInfrastructureTestingMediaWiki componentsAnalyticsMicrosites Doc index Test coverage Code metrics 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 C 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 …