Fan Control vs OpenHardwareMonitor

Fan Control is a Windows utility by developer Remi Mercier (Rem0o) that gives PC builders granular control over CPU, GPU, case, and AIO pump fans. Instead of relying on motherboard BIOS curves, it reads temperatures from multiple hardware sources at once and lets you graph custom fan-speed responses per component. It uses the open-source LibreHardwareMonitor library for sensor data and supports a plugin system for extra hardware support (including some Dell laptops and HWiNFO integration). The app itself is closed-source but completely free, distributed via GitHub releases and package managers like Winget, Scoop, and Chocolatey.

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.

• Completely free with no ads, license keys, or nag screens
• Very low resource footprint compared to full vendor RGB/control suites
• Extremely granular curve and multi-sensor mixing control
• Active development with a real plugin ecosystem

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

• Windows only, no macOS or Linux build
• UI and curve editor have a learning curve for first-time users
• Relies on motherboard fan headers being software-controllable, which varies by hardware

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