fLogViewer.net is a free Windows program which allows one to view large log text files with color coding and filtering.

Logbert is described as 'Advanced log message viewer for log4net, log4j and others. - couchcoding/Logbert' and is an app in the development category. There are more than 25 alternatives to Logbert for a variety of platforms, including Windows, Linux, Mac, Self-Hosted and Flathub apps. The best Logbert alternative is LogExpert, which is both free and Open Source. Other great apps like Logbert are glogg, BareTail, klogg and LogViewPlus.
fLogViewer.net is a free Windows program which allows one to view large log text files with color coding and filtering.

Configuration Manager Trace Log Viewer – A tool used to view log files created by Configuration Manager components and agents.

