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GNOME System Monitor alternatives: 3 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave GNOME System Monitor: no GPU monitoring, and basic graphs compared with newer monitors. We ranked 3 alternatives by how directly each one replaces GNOME System Monitor, then by reviews, real visits and how recently each app's facts were checked against its own website. Mission Center currently ranks first.

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Show all 3 alternatives

The best GNOME System Monitor alternative for…

The highest-ranked app in this list for each need.

Mission Center logo

Best GNOME System Monitor alternative for most people

Mission Center

Adds GPU, fan and per-thread CPU monitoring in a richer Task Manager-style view.

Resources logo

Best GNOME System Monitor alternative for a free option

Resources

Modern GNOME look with GPU and battery pages that System Monitor lacks.

Plasma System Monitor logo

Best GNOME System Monitor alternative for open source

Plasma System Monitor

KDE's counterpart, with configurable pages of sensors for Plasma users.

Mission Center logo

Best GNOME System Monitor alternative for Linux

Mission Center

Adds GPU, fan and per-thread CPU monitoring in a richer Task Manager-style view.

GNOME System Monitor alternatives: common questions

What is the best alternative to GNOME System Monitor?

Mission Center ranks first right now. Adds GPU, fan and per-thread CPU monitoring in a richer Task Manager-style view. Resources and Plasma System Monitor follow it in our ranking.

Is there a free alternative to GNOME System Monitor?

Yes. Mission Center (open source), Resources (open source) and Plasma System Monitor (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to GNOME System Monitor?

Yes: Mission Center, Resources and Plasma System Monitor.

Which GNOME System Monitor alternatives work on Linux?

Mission Center, Resources and Plasma System Monitor run on Linux.

Why do people switch from GNOME System Monitor?

The complaints we hear most: no GPU monitoring; basic graphs compared with newer monitors; linux and Unix-like systems only.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces GNOME System Monitor, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.