Fan Control
for Windows 11 and Windows 10 PCs
Free, lightweight PC fan speed control.
CPU, GPU and case fans, one app, your rules.
"No third-party software, at all, as much as they might want to tout that they do, [has] this level of control. This is what happens when someone that sees a problem, is an enthusiast, and is a programmer, gets involved and says I'm gonna do something that nobody has been doing a way I feel they should do it, and they did it right in my opinion."
CPU, GPU and case fans, together
Most Windows PCs end up running one utility for the motherboard headers, another for the graphics card and a third for the AIO pump. Fan Control replaces that patchwork with a single app that reads temperatures from every sensor it can find and drives every fan it can reach. Treat cooling and noise as one system instead of three: tune CPU fan control, GPU fan control and case airflow from the same window.
Every parameter you could want
If you like to dig in, the settings are all exposed: per-fan calibration for true RPM targets, RPM avoid zones, response time, hysteresis and its direction, step-up and step-down limits, and a separate start and stop percentage so fans can idle at 0 RPM (on hardware that allows it). Not sure what a duty cycle is? Our PWM fan control guide walks through the basics before you touch a slider.
Mix curves change everything
Case fans should not follow a single sensor. A Mix fan curve takes several existing curves, each tied to its own temperature source, and merges them with a function such as maximum or average. The result is one output that reacts to the CPU during a compile, to the GPU during a game, and to the SSD during a long file copy, without you switching profiles. It is the feature the project was started for.
Extend it with plugins
Hardware that the core app does not read yet can still join the party. The .NET plugin system lets third-party developers expose extra temperature, speed and control sensors, and installing a plugin means copying one DLL into the plugins folder. Community plugins cover things like certain laptops, USB controllers and smart-home sensors; the current list lives on the GitHub releases page.
Built on an open-source foundation
Sensor and fan access comes from LibreHardwareMonitor, the actively maintained open-source fork of OpenHardwareMonitor. Because that layer is public, support for a new motherboard chip or GPU generation can be contributed by anyone rather than waiting on one vendor. Together with plugins, that keeps Fan Control useful across many hardware generations on Windows 10 and Windows 11.
Getting started on Windows
Download the archive or installer, run it as administrator, and let the guided setup pair each fan header with its speed sensor. From there, pick a temperature source for every control, assign a curve, and watch the live readouts to confirm the fan reacts. The download page covers requirements and first-run steps in more detail.
Windows 11 and Windows 10 compatibility
Fan Control is a native Windows desktop app built on .NET, and it runs on both current versions of Windows on 64-bit hardware. It talks to motherboard sensor chips, NVIDIA and AMD graphics drivers and popular AIO coolers through LibreHardwareMonitor. Nothing is published for macOS or Linux. Read the Fan Control for Windows 11 guide for setup details specific to the newest release.
Fan not detected? Start here
Missing fans usually come down to one of three things: the app was not started with administrator rights, a vendor utility such as Armoury Crate, iCUE or Dragon Center is holding the fan headers, or the motherboard sensor chip is not yet supported. Close competing software, reboot, and check the LibreHardwareMonitor issue tracker for your board. Our PC fan control guide has a longer troubleshooting checklist.
Frequently asked questions
What is Fan Control?
Fan Control is a free Windows utility by Rémi Mercier (Rem0o) that lets you set CPU, GPU and case fan speeds based on any temperature sensor in your PC.
Does Fan Control work on Windows 11?
Yes. It runs on Windows 11 and Windows 10 and needs the .NET runtime, which the installer edition can fetch for you.
Is Fan Control free?
Yes. The app is free to download and use; donations to the developer are optional.
How do I control PC fan speed in Windows?
Install Fan Control, pair each fan with its RPM sensor, choose a temperature source and assign a fan curve. Manual percentages are available too.
Guides on this site
Download Fan Control
Builds are published on the developer’s GitHub releases page, with a portable ZIP and an installer for both the .NET Framework and modern .NET editions. The Download button above always points at the latest release. Prefer a walkthrough first? Visit Download Fan Control for Windows for requirements and installation notes.