OpenHardwareMonitor

Name: OpenHardwareMonitor
Brand: OpenHardwareMonitor

Free Windows tool to monitor CPU, GPU temps, fan speeds and voltages

softwareSystem Monitorshardware monitoringsystem diagnosticstemperature sensor

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Our Verdict

Best for

PC enthusiasts or IT admins needing a free portable Windows sensor monitor

Skip if

Users requiring macOS/Linux support or remote web dashboard

What is OpenHardwareMonitor?

OpenHardwareMonitor is an open‑source desktop application for Windows that reads temperature sensors, fan speeds, voltages, load and clock speeds from a wide range of hardware components. It presents the data in a clear, sortable tree view and can log values for later analysis. The software supports most modern CPUs, GPUs, motherboards and external devices, and it can display the information in the Windows taskbar or as a portable executable without installation.

SpecificationsAI-estimated

deploymentDesktop App

open source✅ Yes

api available❌ No

support optionsEmail, Community Forum

Key Features of OpenHardwareMonitor

Displays current temperature of each CPU core and package in real time.

Reads and shows fan speed for motherboard, CPU, and GPU fans.

Monitors voltage levels for CPU, RAM and motherboard circuits.

Provides GPU temperature and load information for Nvidia and AMD cards.

Offers optional logging of sensor data to CSV for trend analysis.

Integrates with Windows taskbar to show selected sensor values at a glance.

Allows custom sensor thresholds to trigger visual alerts.

Runs as a portable executable without needing installation.

Use Cases for OpenHardwareMonitor

Overclocking validation

Track temperature and voltage spikes while testing new CPU or GPU clock settings.

System health checks

Quickly verify that all fans and sensors are functioning before a hardware upgrade.

Remote troubleshooting

Log sensor data and share CSV files with support to diagnose overheating issues.

Energy efficiency monitoring

Observe voltage and load trends to optimize power consumption on workstations.

Pros & Cons of OpenHardwareMonitor

Pros

Completely free and open‑source
No installation required; runs as portable exe
Supports a wide range of hardware sensors
Lightweight with minimal system impact

Cons

Windows‑only; no native macOS or Linux version
Limited visual customization beyond default UI
No built‑in remote API or web dashboard

Frequently Asked Questions

Does OpenHardwareMonitor require admin rights?

It can run without admin rights, but some sensors may need elevated privileges to be accessed.

Can I monitor temperatures of external USB devices?

Only if the device exposes standard sensor data that Windows can read; most USB peripherals are not supported.

Is there a way to export sensor data automatically?

Yes, the program can log selected sensors to a CSV file at configurable intervals.

Does the software support AMD Ryzen CPUs?

OpenHardwareMonitor includes support for AMD Ryzen temperature and power sensors.

Pricing Overview

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Free

Detailed plans are not listed. Visit the official website for pricing information.

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