Aptana Studio 3 is a very powerful open source IDE. It is built from Eclipse and supports JavaScript, HTML, DOM, CSS, PHP, Ruby on Rails, and more. In addition to these supported languages and technologies, Aptana Studio also supports Git, deployment through FTP/SFTP/Engine Yard and other setups, a strong debugger with all the debugging goodness you'd expect, code assist, and finally a built-in terminal.

In Chapter 1, Getting Started, we installed it as a standalone program; however, if you are an avid Eclipse user, you can also install it as a plugin. Since we will be using this software for the remainder of the book, we should spend some time getting familiar with it.