GoAccess is a real-time web log analyzer and interactive viewer
Apache Log Parser and Data Normalization Application
Enhanced Apache Server Status page - for one or multiple servers
Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX
Sends logs to files, sockets, inboxes, databases and web services
AWStats Log Analyzer
Strong Email & Apache Log Analysis with Active Security Features
Log analyser for Squid access.log
Real-time log monitoring in your browser
Open Source SIEM
Workflow Designer, Hive Editor, Pig Editor, File System Browser
Script to report downloads recorded in Apache log files
Python WebServer Log File Analyzer
OCD-01 [OSSEC Cool Dashboard]
web front-end for vnstat
PHPIDS-based Security Log Analyzer for Apache
Hadoop, Hbase, HBase Web Client, Flume based log analytics system