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Converts your Groovy code to Javascript
Groovy JavaScript Java


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Converts your Groovy or Java code to JavaScript(Groovy 2.x to Javascript ECMAScript 5). You need groovy jar greater than 2.0 to make conversions. For more information about the project, see

Not a full groovy to javascript conversion. Some groovy and java features not supported, check documentation for more info. Converted code, needs grooscript.js to run. grooscript.js inside the jar in META-INF/resources for servlet 3.0 support. Also a Node.js npm module imports it.

Try online conversions here. Can convert .java and .groovy files or a text fragment as:


import org.grooscript.GrooScript

def result = GrooScript.convert '''
    def sayHello = { println "Hello ${it}!" }
    ['Groovy','JavaScript','GrooScript'].each sayHello'''

println result

Latest Versions

The latest release version is 1.2.1, released on 2015-09-19. The current development version is 1.2.2-SNAPSHOT.

Releases are available from Maven Central and Bintray.


Using gradle wrapper, version 2.4. Only Groovy dependencies in the project. You need JDK 1.7+ to build and test the project.

First time, you have to install Node.js stuff, maybe you have to run as administrator, do it with:

./gradlew npmInstall

Create IntelliJ IDEA project:

./gradlew idea

Test project:

./gradlew test

Build project:

./gradlew build


Grails 2 plugin

Grails 3 plugin

Gradle plugin

Npmjs package


Grooscript licensed under the terms of the Apache License, Version 2.0


  • Jorge Franco

  • Serge Tarkovski

  • Abel Salgado

  • Alberto Navarrete

  • Jonatas Emidio

  • yellowsnow


Twitter: @grooscript

Please all feedback welcome, thanks!

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