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nmon vs Glances: catalog facts
nmon	Glances
Free Free to download.	Free Free and open source, funded by sponsorship.
Linux, Command line	Windows, macOS, Linux, Command line, Web
Many metrics on one screen with low CPU impact Records to CSV for later analysis	Runs on Linux, FreeBSD, macOS and Windows from the same codebase Built-in web interface, so a phone or tablet can watch a server
Terminal only, with keyboard toggles to learn Mainly aimed at Linux and AIX servers	Python and pip installation, which on some systems means a virtual environment Exposing the web interface or API on a network needs authentication configured by you
Downloadable app	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: LGPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

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