Multi-tenant log aggregation system inspired by Prometheus
SQL operating system instrumentation and monitoring framework
Fast and beautiful Log Viewer for Laravel
Simple .NET logging with fully-structured events
An extensible Java library for HTTP request and response logging
Log activity inside your Laravel app
Pure Clojure/Script logging library
Elegant Console Logger for Node.js and Browser
Lightweight data shippers of the Elastic Stack
Easy, flexible, lightweight, platform independent C++logging library
Performance Data collector for Monitoring.
High capacity syslog data collection, filtering, and management.
Logging utility for DB2 for LUW written in SQL-PL
Snare Enterprise: bit.ly/Snare-Trial
centralized syslog-ng monitoring frontend writen in php
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
PotHead
Scommunication is easy to use rs232 rs485 communication application
PHP 404 pages to trap malicious web requests and report abusers
Zerodoc - automated documentation for Linux
A Python multiplatform tool to filter, colorise and analyse logs
LinuxID is an easy console-service for distro identification and more!