The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.
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Fan Control has been discontinued. Similar apps include Open Hardware Monitor, which is free and open source. Other options are AIDA64, SpeedFan, HWMonitor and Sidebar Diagnostics. You can choose from more than 10 System Information Utilities like Fan Control for Windows, Linux, Mac, Android and iPhone.
The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.


Comprehensive diagnostics utility with support for Windows, Android, iOS, and Tizen, 64-bit CPU, GPU, and memory benchmarking, advanced system stability testing, extensive real-time hardware monitoring, detailed GPU analysis, and export options in HTML, CSV, or XML formats.




SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers and controls the fans if possible.




HWMonitor for Windows® x86/x64 is a hardware monitoring program that reads PC system's main health sensors : voltages, temperatures, powers, currents, fans speed, utilization, clock speeds…

Offers at-a-glance hardware monitoring for CPU, RAM, GPU, network, and drives through a customizable sidebar with alerts, hotkey support, multi-DPI compatibility, an integrated clock, themes, and clear graphical statistics on the Windows desktop.




Advanced Mac utility with menubar monitoring for CPU, GPU, memory, disks, network, and sensors, including fan control, S.M.A.R.T status, Bluetooth battery tracking, weather, notifications, and deep customization. Combines multiple stats in a single view while prioritizing privacy.




System utility enabling manual control over fan speeds, real-time monitoring of temperatures and RPM, custom preset creation, support for third-party drives and Windows via Boot Camp, noise reduction features, compatibility with T2 chip models, and multilingual options.



Monitoring temperatures and status of system components such as CPU, GPU and hard disk drive, fan speeds




Continuously monitors and logs temperatures from Intel Core single, dual, quad, and i7 CPUs using digital sensors, supports per-core calibration, benchmarking, and logging, offers high temperature alarms and auto shutdown, and operates as a portable utility with no installation.

3C Toolbox is the comprehensive toolbox to save battery, tweak, tune, backup, secure and monitor any Android devices running any ROMs, any kernels.



Lm-Sensors is a free and open-source application that provides tools and drivers for monitoring temperatures, voltage, and fans.

cinnamon-cpufreq-applet - Port of Gnome 3 CPUFreq applet to Cinnamon - with some fixes.
