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Plasma System Monitor vs GNOME System Monitor: catalog facts
Plasma System Monitor	GNOME System Monitor
Free Free and open source, developed by the KDE community.	Free Free and open source, part of the GNOME project.
Linux	Linux
Shows sensors, processes and resource usage in one window Customizable monitoring pages	Simple graphical task manager for the Linux desktop Can end processes and change their priority
Linux only Most at home on a KDE Plasma desktop	Linux only and designed for GNOME Less detail than specialised monitoring tools
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-only OR GPL-3.0-only	License: GPL-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 23, 2026

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