Last Updated: August 1st, 2020

v. 2.0.20.rc1

Ruby on Rails

Ruby on Rails® is an open-source web framework that’s optimized for programmer happiness and sustainable productivity. It lets you write beautiful code by favoring convention over configuration.

“Rails” and “Ruby on Rails” are registered trademarks of David Heinemeier Hansson.
Rails is released under theMIT license.
Ruby under theRuby License.


Grailsis apowerfulweb 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-timemeta-programmingandAsynchronousprogramming.

© 2005-2015 the Grails project
Grails is Open Source,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.

© 2015 Oracle and/or its affiliates. All rights reserved.
Oracle Binary CodeLicense Agreementfor the Java SE Platform Products.
Java Platform, Standard Edition 8 JRE and JDKThird Party License.


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 open source is distributed under theApache 2.0 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.

© 2015. All Rights Reserved – Elasticsearch
Elasticsearch is a trademark of Elasticsearch BV
Elasticsearch is available under theApache 2 license.


Redis is an open source (BSD licensed), in-memory data structure store, used as database, cache and message broker.

Most of the Redis source code was written and is copyrighted by Salvatore Sanfilippo and Pieter Noordhuis.
Redis is open source software released under the terms of thethree clause BSD 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.

© 2015, Oracle Corporation and/or its affiliates
MySQL is available under theGPL license.


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

© 2015 Pivotal Software, Inc.
RabbitMQ is available under theMozilla 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.

© 2011-2015 Nginx, Inc.
Nginx is distributed under a2-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.

© 1999-2015, The Apache Software Foundation
Tomcat is available under theApache license.


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

© 2011-2015 Twitter, Inc.
Bootstrap is available under theMIT 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.

© 2015 The jQuery Foundation
jQuery is available under theMIT 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.

© 2015 Mike Bostock.
D3.js library released underBSD 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 theCC0 1.0 Universal License.


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

Handlebars.js is released under theMIT license.


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

© 2014 Masayuki Tanaka
C3.js is licensed under theMIT license.


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

© 2013 Twitter, Inc.
typeahead.js is licensed under theMIT license.