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GNOME System Monitor vs htop: catalog facts
GNOME System Monitor	htop
Free Free and open source, part of the GNOME project.	Free Free and open source under the GPL.
Linux	macOS, Linux, Command line
Simple graphical task manager for the Linux desktop Can end processes and change their priority	Kill, renice and filter processes interactively without typing PIDs Per-core meters and tree view make load easy to read at a glance
Linux only and designed for GNOME Less detail than specialised monitoring tools	Terminal only, with no historical graphing Some counters differ per platform outside Linux
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-2.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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