Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX
Simple .NET logging with fully-structured events
SQL operating system instrumentation and monitoring framework
Sends logs to files, sockets, inboxes, databases and web services
Log management solution that improves the performance of SIEM
Provides a log viewer for Laravel
Single header C++ logging library. It is extremely powerful
Graphical viewer for GNU ddrescue mapfiles
Linux kernel mode debugfs keylogger
A full featured, but lightweight logging framework for Delphi
A grep-like utility for log files.