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Beside the language and its API, Groovy gave birth to a fruitful ecosystem of projects around it, on various themes such as web frameworks, desktop application framework, concurrency, testing, and more. In this section, we'll highlight a few of the most well-known and successful projects, which leverage Groovy at their core.


Groovy is a powerful, optionally typed and dynamic language, with static-typing and static compilation capabilities, for the Java platform aimed at multiplying developers’ productivity thanks to a concise, familiar and easy to learn syntax. It integrates smoothly with any Java program, and immediately delivers to your application powerful features, including scripting capabilities, Domain-Specific Language authoring, runtime and compile-time meta-programming and functional programming.

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Gradle is build automation evolved. Gradle can automate the building, testing, publishing, deployment and more of software packages or other types of projects such as generated static websites, generated documentation or indeed anything else.

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Spock is a testing and specification framework for Java and Groovy applications. What makes it stand out from the crowd is its beautiful and highly expressive specification language. Thanks to its JUnit runner, Spock is compatible with most IDEs, build tools, and continuous integration servers.

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The GPars framework offers Java developers intuitive and safe ways to handle Java or Groovy tasks concurrently. Leveraging the enormous flexibility of the Groovy programing language and building on proven Java technologies, we aim to make concurrent programming for multi-core hardware intuitive, robust and enjoyable.

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Ratpack is a simple, capable, toolkit for creating high performance web applications.

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Griffon is an application framework for developing desktop applications in the JVM, with Groovy being the primary language of choice. Inspired by Grails, Griffon follows the Convention over Configuration paradigm, paired with an intuitive MVC architecture and a command line interface.

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Geb is a powerful browser functional testing framework that lets you quickly and easily write functional tests in Groovy. It brings together the power of WebDriver, the elegance of jQuery content selection, the robustness of Page Object modelling and the expressiveness of the Groovy language.

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Sdkman is a tool for managing parallel versions of multiple Software Development Kits on most Unix based systems. It provides a convenient Command Line Interface (CLI) and API for installing, switching, removing and listing Candidates. Formerly known as GVM the Groovy enVironment Manager, it was inspired by the very useful RVM and rbenv tools, used at large by the Ruby community.

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There are of course many other projects using or built with The Grails Framework. For instance, you can find some more by having a look at the trending Groovy projects on Github.