HTML, CSS, and JavaScript Code Assist

Aids in authoring of HTML, CSS, JavaScript, PHP, and Ruby. Supports the latest HTML5 specifications. Includes information about the level of support for each element in the major web browsers.

Deployment Wizard

Support for one-shot as well as keep-synchronized setups. Multiple protocols including FTP, SFTP, FTPS and Capistrano. Ability to automatically publish your Ruby & Rails applications to hosting services such as Heroku and Engine Yard.

Integrated Debugger

Set breakpoints, inspect variables, control execution. The integrated Ruby & Rails and JavaScript debuggers help you squash those bugs.

Git Integration

Easily put your projects under git source code control. Collaborate with team members thru merge, pull and push actions to remote repositories such those hosted on Github. Facilitates git-based deployments.

Built-in Terminal

Quickly access a command line terminal for execution of operating system commands and language utilities such as gem, rake, etc.

IDE Customization

Setup your development environment exactly the way you want it by extending the core capabilities through scripting of custom commands. Studio ships with hundreds of commands but always presents them in context based on the type of file you are editing. 

Download @ http://www.aptana.com