logg is cross-platform open source tool designed to view and search information in large log files. Klogg: Runs on Unix-like systems, Windows and Mac thanks to Qt5 Supports Perl-compatible regular expressions Is fast and reads the file directly from disk, without loading it into memory Utilizes all CPU cores to speed up regex-matching Detects file encoding using uchardet library (support utf8, utf16, cp1251 and more) Colorizes the log and search results Watches for file changes on disk and reloads it (kind of like tail)