DocFetcher - DocFetcher is a portable German/English open source desktop search application.

glogg - glogg is a multi-platform GUI application to browse and search through long or complex log files.

Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.

klogg - klogg is the fork of glogg - the fast, smart log explorer.

Agent Ransack - Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently.

SPHW - LogViewer - A free platform-independent tool for monitoring log files in real-time.