Project Phobos is a lightweight, scripting-friendly, web application environment running on the Java platform.

These include a fully featured debugger; wizards to help you get started faster; a palette of JmakiAjax widgets that can be dropped on a page and the ability to generate a standard web application for deployment on any servlet container or Java EE application server.^[1]

Currently, the primary language supported by Phobos is JavaScript. By leveraging JavaScript on the server, Phobos allows developers to use the same language on the client and server tier of a web application, eliminating the impedance mismatch that characterizes other approaches to Ajax.^[2]

This project was archived and effectively discontinued.^[3]