Compare software

nmon vs btop++: catalog facts
nmon	btop++
Free Free to download.	Free Free and open source, funded by donations.
Linux, Command line	macOS, Linux, Command line
Many metrics on one screen with low CPU impact Records to CSV for later analysis	Sortable, filterable process list with per-process detail, driven by mouse or keyboard Graphs for CPU, memory, disks and network in one screen
Terminal only, with keyboard toggles to learn Mainly aimed at Linux and AIX servers	No native Windows build; on Windows you need WSL It reports and does not manage: there is no alerting or historical logging
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
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.