BareTail - BareTail is a real-time log file monitoring tool. Features Real-time file viewing
LNAV - The Log File Navigator (lnav) is an advanced log file viewer for the console.
glogg - glogg is a multi-platform GUI application to browse and search through long or complex log files.
Compact Log Viewer - Cross-platform tool to read & query JSON aka CLEF log files created by Serilog.
klogg - klogg is the fork of glogg - the fast, smart log explorer.
LOG4VIEW - Log4View is a convenient viewer for XML or pattern formated log4net, log4j or log4cxx logging output.