Alternatives to Astra Monitor
A GNOME Shell extension that shows processor, GPU, memory, storage, network and sensor readings in the panel. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Astra Monitor
A GNOME Shell extension that shows processor, GPU, memory, storage, network and sensor readings in the panel.
Replacements
Listings that take over the same core job as Astra Monitor.
Vitals
A GNOME Shell extension that shows temperatures, voltages, fan speeds, memory and CPU load in the top bar.
Vitals is also a GNOME Shell top bar extension, focused on temperatures, voltages, fan speeds, memory and CPU load, with fewer GPU, storage and network readings described.
Conky
Display live system information in configurable desktop widgets.
Conky shows live system information as configurable desktop widgets rather than in the GNOME panel, works beyond GNOME, and usually needs text file editing to configure.
Mission Center
A Linux system monitor that looks like the Windows Task Manager, which is exactly the point.
Mission Center is a full Task Manager style window with per-process detail and GPU usage, instead of an always-visible panel indicator.
Resources
A GNOME app that shows CPU, memory, GPU, network, storage and battery usage and manages processes.
Resources is a GNOME app covering CPU, memory, GPU, network, storage and battery in a separate window, and it can also manage processes.
Similar software
Related functionality, not a direct replacement.
GNOME System Monitor
GNOME's process viewer and resource monitor for checking CPU, memory, network and file system usage.
Plasma System Monitor
KDE's desktop application for monitoring system sensors, running processes and resource usage on Linux.
i3status
Generate a compact stream of system status information for desktop bars.
xmobar
A minimalist text-based status bar for X11, written in Haskell and often paired with xmonad.
lm-sensors
Linux command-line utilities and a library for reading hardware temperature, voltage and fan sensors.
Stats
See system resource use in the macOS menu bar.