FSMonitor is a macOS app that monitors all changes in the file system, including file creation, deletion, change of content, renames, and change of attributes. It provides different display modes to to examine the list of changed files.
Tagger is a small application for OS X that can be used for quickly adding arbitrary textual tags to files. It uses the OpenMeta system for saving tags, so the tags you add with it will be readable (and editable) by all the other applications that support OpenMeta.
Zeitgeist is a service which logs the users's activities and events, anywhere from files opened to websites visited and conversations.
Watch 4 Folder is a simple to use, small and portable tool to monitor folders and file activities.
FinderPop is a Universal preference pane that extends OS X's contextual menus using a FinderPop Items folder much as the Apple Menu Items folder used to do for the Apple menu.
