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btop++GNOME System Monitor
Free

Free and open source, funded by donations.

 Free

Free and open source, part of the GNOME project.

macOS, Linux, Command line Linux
  • Sortable, filterable process list with per-process detail, driven by mouse or keyboard
  • Graphs for CPU, memory, disks and network in one screen
  • Simple graphical task manager for the Linux desktop
  • Can end processes and change their priority
  • No native Windows build; on Windows you need WSL
  • It reports and does not manage: there is no alerting or historical logging
  • Linux only and designed for GNOME
  • Less detail than specialised monitoring tools
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 License: GPL-2.0
No account needed No account needed
Works offline Works offline

Checked September 20, 2026

Checked September 23, 2026

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