glogg - glogg is a multi-platform GUI application to browse and search through long or complex log files.
i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
BareTail - BareTail is a real-time log file monitoring tool. Features Real-time file viewing
awesome - A dynamic window manager for the X Window System developed in the C and Lua programming languages.
klogg - klogg is the fork of glogg - the fast, smart log explorer.
dwm - dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed.