A fast PostgreSQL Log Analyzer
GoAccess is a real-time web log analyzer and interactive viewer
AWStats Log Analyzer
Strong Email & Apache Log Analysis with Active Security Features
Real-time traffic analysis for your website for 100% FREE
Log Management Solution
A decade old shell script to ease postfix log analysis
Python WebServer Log File Analyzer
PHPIDS-based Security Log Analyzer for Apache
Command line client interface for LOGalyze 4
Project's new home: https://github.com/Stunner/FileZilla-Log-Analyzer