Noodlesoft has announced Hazel 4, an update to its housekeeping utility for Mac OS X.

The utility watches whatever folders you tell it to, automatically organizing your files according to the rules you create. Using Hazel’s rule engine, you can easily create workflows that keep your files organized automatically. The app also features options for managing your Trash and includes an app uninstaller.

Hazel 4 introduces a new live preview of your rule while editing it. With the new preview feature, users can quickly see whether their rules are correct before deploying them. This version also includes syncing rules using any file syncing/sharing service such as Dropbox or iCloud drive. Also new is the ability to have Hazel monitor Smart Folders. Version 4 includes other features such as rule search, an expanded status interface, a toggle extension action, and more.

A 14-day demo version is available for download (https://www.noodlesoft.com/kb/). Hazel 4 has a retail price of $32. Existing registered users can upgrade for $10. Those who purchased from Sept. 6, 2015 onwards will get a free upgrade.