The Aptana IDE is a free, source-open, cross-platform, JavaScript-focused editor and development environment for building Ajax applications.

It features code assist on JavaScript, HTML, and CSS languages, FTP/SFTP support and a JavaScript debugger to troubleshoot your code.

Here are some key features of "Aptana IDE":

· Code Assist on HTML, JavaScript, and CSS languages, including your own JavaScript functions
· Outliner that gives a snapshot view of your JavaScript, HTML, and CSS code structure
· FTP/SFTP uploading, downloading and synchronization
· JavaScript debugger to troubleshoot your code
· Error and warning notification for your code
· Support for Aptana UI customization and extensions
· Cross-platform support
· Free and source open under the Aptana Public License, v1.0.
· Please note that milestone 9 is still a preview release


Requirements:

· Java 1.4.2 or later
· PPC G5 or Intel processor