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