Syslog-NG Insight allows rapid troubleshooting and operational visibility of Syslog-NG. It visualizes Syslog-NG statistics (generated by syslog-ng-ctl stats command).
Currently there are 15 different charts:
Sources
Sources (relative)
Destinations
Destinations (relative)
Source Journald
Source Journald (relative)
Destinations UDP
Destinations UDP (relative)
Destinations TCP
Destinations TCP (relative)
Destinations UDP by Loghost
Destinations TCP by Loghost
Destinations UDP (Summary Table)
Destinations TCP (Summary Table)
For a similar App for Rsyslog visit https://splunkbase.splunk.com/app/6407/?Rsyslog%20Insight%20(Statistics%20and%20Debugging)