GoAccess is a real-time web log analyzer and interactive viewer
Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX
ISC dhcpd leases usage analysis
repair corrupted pcap and pcapng files
Snare Enterprise: bit.ly/Snare-Trial
Open Source SIEM
A multi-platform universal log collector and forwarder
Free-SA is report generating tool for web, proxy and mail log files