The Apache Groovy programming language

<!DOCTYPE html>     <html class="no-js"> <head> <meta charset='utf-8'/><meta http-equiv='X-UA-Compatible' content='IE=edge'/><meta name='viewport' content='width=device-width, initial-scale=1'/><title>The Apache Groovy programming language</title><link href='img/xfavicon.ico.pagespeed.ic.5MuYua7ZOt.png' type='image/x-ico' rel='icon'/><link rel='stylesheet' type='text/css' href='css/A.bootstrap.css+font-awesome.min.css,Mcc.wNYYnhgHoF.css.pagespeed.cf.4sybb4EKeG.css'/><link rel='stylesheet' type='text/css' href='css/A.style.css.pagespeed.cf.8ltgaxBLeE.css'/> </head><body> <div id='fork-me'> <a href='https://github.com/apache/groovy'> <img style='position: fixed; top: 20px; right: -58px; border: 0; z-index: 100; transform: rotate(45deg);' src='img/xhorizontal-github-ribbon.png.pagespeed.ic.Xn2L3BtWF6.png'/> </a> </div><div id='st-container' class='st-container st-effect-9'> <nav class='st-menu st-effect-9' id='menu-12'> <h2 class='icon icon-lab'>Socialize</h2><ul> <li> <a href='mailing-lists.html' class='icon'><span class='fa fa-envelope'></span> Discuss on the mailing-list</a> </li><li> <a href='https://twitter.com/ApacheGroovy' class='icon'><span class='fa fa-twitter'></span> Groovy on Twitter</a> </li><li> <a href='events.html' class='icon'><span class='fa fa-calendar'></span> Events and conferences</a> </li><li> <a href='https://github.com/apache/groovy' class='icon'><span class='fa fa-github'></span> Source code on GitHub</a> </li><li> <a href='reporting-issues.html' class='icon'><span class='fa fa-bug'></span> Report issues in Jira</a> </li><li> <a href='http://stackoverflow.com/questions/tagged/groovy' class='icon'><span class='fa fa-stack-overflow'></span> Stack Overflow questions</a> </li><li> <a href='http://www.groovycommunity.com/' class='icon'><span class='fa fa-slack'></span> Slack Community</a> </li> </ul> </nav><div class='st-pusher'> <div class='st-content'> <div class='st-content-inner'> <div><div class='navbar navbar-default navbar-static-top' role='navigation'> <div class='container'> <div class='navbar-header'> <button type='button' class='navbar-toggle' data-toggle='collapse' data-target='.navbar-collapse'> <span class='sr-only'></span><span class='icon-bar'></span><span class='icon-bar'></span><span class='icon-bar'></span> </button><a class='navbar-brand' href='index.html'> <i class='fa fa-star'></i> Apache Groovy </a> </div><div class='navbar-collapse collapse'> <ul class='nav navbar-nav navbar-right'> <li class=''><a href='learn.html'>Learn</a></li><li class=''><a href='documentation.html'>Documentation</a></li><li class=''><a href='https://groovy.apache.org/download.html'>Download</a></li><li class=''><a href='support.html'>Support</a></li><li class=''><a href='https://groovy.apache.org/'>Contribute</a></li><li class=''><a href='ecosystem.html'>Ecosystem</a></li><li class=''><a href='https://groovy.apache.org/blog'>Blog posts</a></li><li> <a data-effect='st-effect-9' class='st-trigger' href='#'>Socialize</a> </li><li class=''> <a href='search.html'> <i class='fa fa-search'></i> </a> </li> </ul> </div> </div> </div><div id='band' class='band'></div><div id='content'> <section class="row colset-2-its"> <h1>A flexible and extensible Java-like language for the JVM</h1> <p> Apache Groovy is a multi-faceted language for the JVM. It aims to provide a <strong>Java-like feel and syntax</strong>, but with <strong>added productivity</strong> features. It supports OO and functional paradigms, and offers both static and dynamic natures for strong yet flexible typing. It supports the creation of powerful scripts and elegant Domain-Specific Languages. It offers bidirectional interoperability with Java classes and libraries, and supports language extensions through in-language macros, AST transformations and meta-programming. </p> <div class="col1"> <article> <div class="icon icon-1"></div> <h1>Flat learning curve</h1> <p>Concise, readable and expressive syntax, easy to learn for Java developers, flexible typing makes it more friendly for Python programmers or data scientists</p> </article> <article> <div class="icon icon-2"></div> <h1>Smooth Java integration</h1> <p> Seamlessly and transparently integrates and interoperates with Java and any third-party libraries </p> </article> <article> <div class="icon icon-6"></div> <h1>Vibrant and rich ecosystem</h1> <p> Web development, reactive applications, concurrency / asynchronous / parallelism library, test frameworks, build tools, code analysis, GUI building </p> </article> </div> <div class="col2"> <article> <div class="icon icon-4"></div> <h1>Powerful features</h1> <p> Closures, builders, traits, runtime & compile-time meta-programming, functional programming, type inference, and static compilation </p> </article> <article> <div class="icon icon-5"></div> <h1>Domain-Specific Languages</h1> <p> Flexible & malleable syntax, advanced integration & customization mechanisms, to integrate readable business rules in your applications </p> </article> <article> <div class="icon icon-3"></div> <h1>Scripting and testing glue</h1> <p> Great for writing concise and maintainable tests, and for all your build and automation tasks </p> </article> </div> </section> <hr class="row"/> <section class='row colset-3-article first-event-row'><h1><strong>Apache Groovy events you shouldn't miss!</strong></h1><article><div class='content'><div class='event-img' style='background-image:url(img/confs/xcoc2024.png.pagespeed.ic.LF1LwjuzNI.png)'></div><h1><a href='https://communityovercode.org/'><strong>Community over Code NA</strong><br/><em>Minneapolis, Minnesota</em></a></h1><time>September 11-14, 2025</time><br/> <p> The latest innovations from dozens of Apache projects and their communities in a collaborative, vendor-neutral environment. </p> </div></article></section><section class='row last-event-row'><p class='text-center'>For more events see the <a href='events.html'><strong>Events</strong></a> page</p></section></div><div id="they-use-groovy" class="orange-band"> <div class="row"> <div class="item"> <h1><strong>They all use Apache Groovy!</strong></h1> <div id='logos-holder'> <div class='logo' style='background-image:url(img/logos/netflix.png.pagespeed.ce.waguTf5Mzv.png)'></div> <div class='logo' style='background-image:url(img/logos/amadeus.png.pagespeed.ce.ut_s2__MUV.png)'></div> <div class='logo' style='background-image:url(img/logos/bestbuy.png.pagespeed.ce.iV6iJlEMIB.png)'></div> <div class='logo' style='background-image:url(img/logos/carfax.png.pagespeed.ce.KbWc4M3TnF.png)'></div> <div class='logo' 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The Apache Groovy programming language