macOS Console - An application to view live log files.
Event Log Explorer - Windows event log viewer software. Windows event log analysis, view and monitor security, system, and other logs on Windows servers and workstations
BareTail - BareTail is a real-time log file monitoring tool. Features Real-time file viewing
Event Viewer - Get help, support, and tutorials for Windows products—Windows 10, Windows 8.1, Windows 7, and Windows 10 Mobile.
Goldilogs - Intuitive and powerful real-time log viewer. Low CPU/RAM/network usage. Handles large files (gigabytes), instant loading, colour highlighting, tailing and powerful text/RegEx searching.
Windows Event Viewer Plus - Windows Event Viewer Plus, a portable freeware app that lets you view Event Logs faster than the default in-built Windows Event Viewer and more!