An extensible Java library for HTTP request and response logging
Firewall log analyzer
pgBadger is a PostgreSQL log analyzer built for speed.
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
Generate charts and reports using data gathered in log files
Lightweight Event Management System (for Monitoring-Events and more)
a powerful multipurpose checksum utility
A simple, and lightweight program to display and format Bukkit logs.
LogWatch mail reports parser to analyze tendencies of variables.
Viewer for logfiles in xml-format generated by java.util.logging.Logge
A tiny and easy to use log system for C/C++
SarBox helps user to parse or analyze sar data
Passive Proxy Daemon sniffs packets and creates squid proxy logs