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System Monitoring Center vs btop++: catalog facts
System Monitoring Center	btop++
Free Free and open source under the GPL-3.0 licence.	Free Free and open source, funded by donations.
Linux	macOS, Linux, Command line
Detailed performance and usage views in one window Translated into many languages	Sortable, filterable process list with per-process detail, driven by mouse or keyboard Graphs for CPU, memory, disks and network in one screen
Linux only Several parallel versions can be confusing to choose between	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
Open source	Open source
License: GPL-3.0	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 20, 2026

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