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GKrellM vs Open Hardware Monitor

Both stand on hardware monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

GKrellM

Free plan LinuxMacWindows

GKrellM combines a wide set of system monitors with charts, alarms, themes, and plugin support. Check the application requirements and sensor dependencies for the platform and readings you need.

Visit GKrellM

Open Hardware Monitor

Free plan LinuxWindows

Open Hardware Monitor offers broad sensor coverage and several display options at no cost. Its Beta status, older listed release, and platform prerequisites should be considered before installation.

Visit Open Hardware Monitor

The facts

GKrellMOpen Hardware Monitor
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, Mac, WindowsLinux, Windows
Lowest paid planFree or on requestFree or on request
Plans published11
MakerNot publishedNot published
Websitebillw2.github.ioopenhardwaremonitor.org
On hardware monitoring software#7 of 58#43 of 58

GKrellM: what it does well

  • Monitors CPU, memory, disks, networks, and other system areas.
  • Charts offer automatic or fixed scaling.
  • Sensor and battery monitors can show configurable alarms.
  • Supports themes and plugins for specialized monitors.
  • Available for several Unix-like systems, with a Windows version linked.

What to know first

  • The application requires GTK 2.0, GDK 2.0, and GLib 2.0.
  • Linux sensor readings may depend on hardware and additional software.
  • No security certification or compliance standard is stated.

Open Hardware Monitor: what it does well

  • Monitors temperatures, fans, voltages, load, and clocks
  • Supports Intel, AMD, Nvidia, and SMART sensors
  • Displays readings in window, gadget, or tray
  • Publishes data through Windows Management Instrumentation
  • Free and open source

What to know first

  • Still in Beta
  • Windows requires .NET Framework 4.5 or later
  • Linux requires Mono with WinForms
  • Administrator rights needed for most sensors

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