AWStats Log Analyzer
Enhanced Apache Server Status page - for one or multiple servers
Log analyser for Squid access.log
ISC dhcpd leases usage analysis
Strong Email & Apache Log Analysis with Active Security Features
Open Source SIEM
Python WebServer Log File Analyzer
Free-SA is report generating tool for web, proxy and mail log files
OCD-01 [OSSEC Cool Dashboard]
Utility to move honeyd.log entries to a MySQL database.