Aptana Studio

Aptana Studio is an open source web development environment suited for the latest browser technology, meaning HTML5, JavaScript, CSS3, PHP, Ruby, Rails and Python. One core feature is providing information on the level of support for each element you select in all major internet browsers. In addition to many other functions, developers should know that this software also supports protocols like FTP, SFTP, FTPS and Capistrano.

Debuggers are integrated as well as Git-based deployments, which allow users to collaborate with each other.

The very good idea is the implementation of a command line terminal, great when you need to run system commands.