Railo

Railo Server

Developer(s)	Railo Technologies
Initial release	April 2006
Stable release	4.2.1.000 / 21 May 2014; 2 years ago (2014-05-21)
Written in	Java
Operating system	Windows, Linux, Unix, macOS
Available in	English, German
Type	Application server
License	LGPL v2.1
Website	www.getrailo.org

Railo Technologies

Railo Server, commonly referred to as Railo (/raɪloʊ/ raɪ-lo), is open source software which implements the general-purpose CFML server-side scripting language, often used to create dynamic websites, web applications and intranet systems. CFML is a dynamic language supporting multiple programming paradigms and runs on the Java virtual machine (JVM).

Railo was created by the Swiss company Railo Technologies GmbH, intended as a high performance alternative to Adobe ColdFusion. In 2008, Railo switched to an open source community-driven model, and became a JBoss project. The Railo Open Source project is led by Railo Technologies, with development work funded by consulting and support contracts, but anyone may contribute code for consideration.

Railo was named after an alien dog in Star Trek Enterprise. The dog is actually named Rhylo, but written phonetically in German it is Railo. Thus, Railo can be pronounced either as rhy-lo or as rai-lo - both are acceptable.

Railo major releases have a codename of notable and loyal dogs from history.

Railo began in 2002 as a student project to compile CFML code into PHP, a choice made due to the ubiquity of PHP, however it was found that this did not give the desired performance and stability, and the decision was made to switch to the Java platform instead.