Python logging made (stupidly) simple
AzioEventLog Analyzer is a monitoring and analysis tool
Firewall log analyzer
pgBadger is a PostgreSQL log analyzer built for speed.
Single header C++ logging library. It is extremely powerful
free netflow analyzer
Easier logging and tracing of Python functions and class methods.
FS-IISLogViewer - analyze IIS LogFiles
Command line client interface for LOGalyze 4
Log and track user/computer info in MS Windows environments
Log file parser and viewer