ClearURLs - Remove tracking elements from URLs.
Léon – The URL Cleaner - Removes tracking & other redundant parameters from web links for sharing
TrackerZapper - TrackerZapper is a Mac app that sits in your menubar and silently removes tracking parameters from any links you copy.
Neat URL - Neat URL cleans URLs, removing parameters such as Google Analytics' utm parameters
Ghostery - Privacy tool for transparency and control
Redirector - Automatically redirects to user-defined urls on certain pages.