A free log parser is available for Mac that can be utilized via command-line interface.
Not only this, but Logtool also allows for various configuration options to manipulate the parsed data to your desired output format. The time display format of a log entry can be modified as per your preference, and this tool offers the ability to strip down elements like the host or program fields based on your specifications. In a nutshell, Logtool is a highly useful software for anyone that frequently deals with log files and requires an efficient solution for converting these logs into a more usable format.
Version 1.3.1: N/A