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less vs lnav: catalog facts
less	lnav
Free Free and open source.	Free Free and open source.
macOS, Linux, Command line	macOS, Linux, Command line
Preinstalled on most Linux, Unix and macOS systems Actively maintained with regular releases	Automatic detection of log formats and compressed files Merges several logs into one view
Terminal only, with no graphical interface No syntax highlighting or structured views without extra tools	Meant for small-scale use, not central log collection Terminal interface takes some learning
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: BSD-2-Clause
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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