5 useful open source log analysis tools | Opensource.com
GitHub - Anant/Cassandra.Vision: Tools for Offline Cassandra log analysis via ELK/FEK (Elastic, Logstash, Filebeat & Kibana) and Visual analysis of TableStats/CFStats using Excel
3 less popular Log Analysis Tools that are free - Karunsubramanian.com
7 Best Log Analysis Tools - DNSstuff
Log Analysis Tool – Server Events Log Analysis | SolarWinds