
The majority of Mac users who do a lot of automated file processing use Hazel. Automator is at the bottom end, Hazel is at the top end, and Keyboard Maestro is somewhere in the middle. Think of it as a spectrum of file triggered automation where power and simplicity happen to be bound together.

tokens, utilisation of content from within a file). It has a user interface designed around that, which makes simple folder actions easier to create than Automator, but also has built in functionality to make more advanced operations possible (e.g. Hazel is a specialist automation tool that only takes action on things within a folder. One of the things it can do it be tied to a folder to take action on content added to that folder. Automator is a general purpose, action based tool for automation.
