Open Source Licenses

Last Updated: October 30th, 2020


Apache Groovy is a powerful, optionally typed and dynamic language, with static-typing and static compilation capabilities, for the Java platform aimed at improving developer 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, compile-time meta-programming, and functional programming.


Groovy is available under the Apache 2 License


Grails is a powerful web framework, for the Java platform aimed at multiplying developers’ productivity thanks to a Convention-over-Configuration, sensible defaults, and opinionated APIs. It integrates smoothly with the JVM, allowing you to be immediately productive whilst providing powerful features, including integrated ORM, Domain-Specific Languages, runtime, and compile-time meta-programming and Asynchronous programming.


Grails is available under the Apache 2 License

Java Runtime Environment

The Java Runtime Environment (JRE) consists of the Java Virtual Machine (JVM), Java platform core classes, and supporting Java platform libraries. OpenJDK is a long-running Project is to produce a series of open-source reference implementations of the Java SE Platform, as specified by JSRs in the Java Community Process.


Java is available under the GPL v2 with Classpath Exception License


Elasticsearch is a search server based on Lucene. It provides a distributed, multitenant-capable full-text search engine with a RESTful web interface and schema-free JSON documents.


Elasticsearch is a trademark of Elasticsearch BV

Elasticsearch is available under the Apache 2 License


MySQL is a freely available open-source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL). SQL is the most popular language for adding, accessing, and managing content in a database. It is most noted for its quick processing, proven reliability, ease, and flexibility of use.

Oracle Corporation and/or its affiliates


MySQL is available under the GPL license


RabbitMQ is an open-source message broker software (sometimes called message-oriented middleware) that implements the Advanced Message Queuing Protocol.

Pivotal Software, Inc.


RabbitMQ is available under the Mozilla Public License


Nginx is a web server with a strong focus on high concurrency, performance, and low memory usage. It can also act as a reverse proxy server for HTTP, HTTPS, SMTP, POP3, and IMAP protocols, as well as a load balancer and an HTTP cache.

Nginx, Inc.


NGINX available under the 2-clause BSD-like License


Apache Tomcat, often referred to as Tomcat, is an open-source web server and servlet container developed by the Apache Software Foundation.

The Apache Software Foundation


Tomcat is available under the Apache 2 License

Docker Engine

Docker is an open platform for building, shipping, and running distributed applications. It gives programmers, development teams, and operations engineers the common toolbox they need to take advantage of the distributed and networked nature of modern applications.


Docker Engine Community Edition is available under the Apache 2 License


Bootstrap is the most popular HTML, CSS, and JS framework for developing responsive, mobile-first projects on the web.

Twitter, Inc.


Bootstrap is available under the MIT License


jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.

The OpenJS Foundation


jQuery is available under the MIT License


D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation.

Mike Bostock.


D3.js is available under the BSD 3-Clause License

SVG for Everybody

SVG for Everybody adds external spritemaps support to otherwise SVG-capable browsers.

Authored and maintained by Johnathan T. Neal.


SVG for Everybody is available under the CC0 1.0 Universal License


Handlebars provides the power necessary to let you build semantic templates effectively with no frustration.

Yehuda Katz


Handlebars.js is available under the MIT License


C3.js is a D3-based reusable chart library that enables deeper integration of charts into web applications.

Masayuki Tanaka


C3.js is available under the MIT License


Inspired by’s autocomplete search functionality, typeahead.js is a flexible JavaScript library that provides a strong foundation for building robust typeaheads.

Twitter, Inc.


typeahead.js is available under the MIT License


A modern JavaScript utility library delivering modularity, performance & extras.

The OpenJS Foundation


typeahead.js is available under the MIT License


Redis was removed starting in the 4.1.2 release.