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Open Log Viewer vs lnav: catalog facts
Open Log Viewer	lnav
Free Free and open source under GPL-3.0-or-later.	Free Free and open source.
Windows, macOS, Linux	macOS, Linux, Command line
Opens multiple log files in tabs Follows changes to log files	Automatic detection of log formats and compressed files Merges several logs into one view
Desktop app built with Electron	Meant for small-scale use, not central log collection Terminal interface takes some learning
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: BSD-2-Clause
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.