Libre Hardware Monitor is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer. Releases 10 · Actions · Issues 540 · Pull requests 18
The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer. Downloads · Screenshots · Release Version 0.9.6 · Documentation
Temp Monitor is an tool which will show you all available sensors in your Mac, alert you when your Mac overheats, and the utility to help you log all instances.
HWMonitor for Windows® x86/x64 is a hardware monitoring program that reads PC systems main health sensors: voltages, temperatures, powers, currents, fans speed.
Open Hardware Monitor allows you to display all details (temperature, storage space, clocking speeds, etc) of each individual component in your computer.