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Xfce Task Manager vs Plasma System Monitor: catalog facts
Xfce Task Manager	Plasma System Monitor
Free Free and open source, part of the Xfce project.	Free Free and open source, developed by the KDE community.
Linux	Linux
Light on resources Process tree view and name filter	Shows sensors, processes and resource usage in one window Customizable monitoring pages
Fewer features than full system monitors No disk or network graphs mentioned	Linux only Most at home on a KDE Plasma desktop
Downloadable app	Downloadable app
Open source	Open source
License not stated	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 October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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