AWStats Log Analyzer
ISC dhcpd leases usage analysis
repair corrupted pcap and pcapng files
Build custom filter for your network based off of common communication
Free-SA is report generating tool for web, proxy and mail log files
Squid log data warehouse
Command line client interface for LOGalyze 4
Project's new home: https://github.com/Stunner/FileZilla-Log-Analyzer