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OpenHardwareMonitor vs SpeedFan

Side-by-side comparison of features, pricing, ratings, and alternatives.

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OpenHardwareMonitor
OpenHardwareMonitorFree Windows tool to monitor CPU, GPU temps, fan speeds and voltages
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SpeedFan
SpeedFanMonitor computer temperatures, voltages, and fan speeds on Windows.
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Overview
Description

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.

SpeedFan is a classic hardware monitoring utility designed for Microsoft Windows that interfaces with digital temperature sensors, voltage inputs, and fan controllers. It reads data from motherboards connected via the SMBus to give users detailed insights into their system's thermal performance. Beyond basic monitoring, SpeedFan allows advanced users to manually or automatically adjust fan speeds based on component temperatures to reduce noise and prevent overheating. Although development has largely stalled for modern hardware, it remains a recognized tool for legacy systems and custom fan curves.

Pricing
Free
Free
Category
System Monitors
System Monitors
Best for
PC enthusiasts and IT administrators
PC enthusiasts and system builders
Specifications
deployment
Desktop App
Desktop App
open source
Yes
No
api available
No
No
support options
Email, Community Forum
Community forums and documentation
Pros & Cons
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
  • Completely free to download and use without restrictions.
  • Provides deep, low-level access to motherboard sensors and voltages.
  • Allows highly customizable fan speed control profiles.
  • Lightweight system footprint with minimal resource usage.
Cons
  • Windows‑only; no native macOS or Linux version
  • Limited visual customization beyond default UI
  • No built‑in remote API or web dashboard
  • Outdated user interface that lacks modern visual polish.
  • May not support newer motherboards, chipsets, or modern hardware configurations.
  • Requires careful setup to avoid accidentally turning off crucial cooling fans.
Community & Metrics
Upvotes
0
0
User rating
Not enough data
Not enough data

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SpeedFan
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The Verdict

AI-generated from listing data

Both tools are free, but SpeedFan offers deeper low‑level sensor control while OpenHardwareMonitor provides a modern, portable, open‑source experience.

Key differences

  • •SpeedFan supports custom fan speed thresholds and voltage monitoring via SMBus; OpenHardwareMonitor lacks fan control.
  • •OpenHardwareMonitor is portable (no install) and open‑source; SpeedFan is a traditional install and closed source.
  • •SpeedFan’s UI is outdated and may miss newer hardware; OpenHardwareMonitor supports a wider range of modern sensors.
  • •Support: SpeedFan only community forums; OpenHardwareMonitor adds email support.
DimensionWinner

Pricing & value

Both are free with no licensing cost.

Tie

Ease of use / learning curve

OpenHardwareMonitor runs as a portable exe with a simpler UI, no installation required.

OpenHardwareMonitor

Features & depth

SpeedFan provides fan speed control, voltage checks, S.M.A.R.T. data, and custom thresholds.

SpeedFan

Integrations & ecosystem

OpenHardwareMonitor integrates with Windows taskbar and offers CSV logging; SpeedFan lacks such integrations.

OpenHardwareMonitor

Support

OpenHardwareMonitor lists email support plus community forum, whereas SpeedFan only has community forums.

OpenHardwareMonitor

Security & privacy

OpenHardwareMonitor is open‑source, allowing code review; SpeedFan is closed source.

OpenHardwareMonitor

Migration / lock‑in

OpenHardwareMonitor’s portable nature makes it easy to move between PCs; SpeedFan requires installation per machine.

OpenHardwareMonitor

Choose OpenHardwareMonitor if…

Users who want a lightweight, portable, open‑source monitor with broader hardware support.

Choose SpeedFan if…

Enthusiasts needing precise fan control and voltage monitoring on a single Windows PC.

Common questions

Is there any cost to use either tool?

Both SpeedFan and OpenHardwareMonitor are free to download and use.

Can I control fan speeds with OpenHardwareMonitor?

No, fan control is not listed as a feature for OpenHardwareMonitor.

Which tool works on newer motherboards?

OpenHardwareMonitor supports a wider range of modern hardware; SpeedFan may not support newer chipsets.