Open Source Windows Fan Control Software
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Fan Control Software for Windows
View 0 business solutionsBrowse free open source Fan Control software and projects for Windows below. Use the toggles on the left to filter open source Fan Control software by OS, license, language, programming language, and project status.
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NoteBook FanControl (NBFC)
Cross-platform fan control service for notebooks
NoteBook FanControl (NBFC) is a cross-platform fan control service for notebooks. It comes with a powerful configuration system, which allows to adjust it to many different notebook models. Currently, there are no pre-built releases for Linux, but you can easily build NBFC yourself. In general the NBFC Wiki is the first place to go if you have any questions. If you want to build NBFC from source, the first thing you have to do is to download the source code. You can easily clone the NBFC repository via git. Make sure the Mono runtime + development tools are installed on your machine (Debian based distros: mono-complete, Arch based distros: mono). Config files are an integral part of NBFC, because they define how NBFC interacts with your notebook's embedded controller (EC). The EC monitors your system's temperatures and controls the fan(s). It sits on the motherboard or is integrated into a Super I/O chip & is connected to the Southbridge via the Low Pin Count (LPC) bus. -
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Fan Control
Highly customizable fan controlling software for Windows
Fan Control is a Windows utility designed to give users fine-grained, customizable control over system fans (CPU, GPU, case, etc.) based on temperature and sensor inputs. Rather than relying solely on BIOS fan curves, it allows dynamic adjustment of fan behaviour at the operating-system level — letting you react to real-time load, mix multiple sensors (CPU, GPU, motherboard, drives, etc.), and define custom fan-speed curves for different situations. The tool supports both manual mode (user directly sets fan speeds) and automated mode (fans follow sensor-driven graphs), enabling flexible tradeoffs between noise, cooling, and performance. Users can create and save different “profiles” (e.g. silent mode, high-performance mode, custom GPU-heavy workloads), then load them as needed. Recent versions switched their driver backend (migrating from WinRing0 to a PawnIO-based driver) to improve compatibility and avoid security/AV-flagging issues. -
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Solution to the cooling fan noise annoyances Thinkpad T4x (T40/T41/T42/T43) notebook series. Allows the user to control fan activity based on the system temperature. Win XP Visual C++ project controls the fan via port IO to the embedded controller.
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AlienFX Tools
Alienware systems lights, fans, and power control tools and apps
AlienFX Tools is a suite of utilities aimed at controlling lighting, fan, and power behaviors on Alienware systems, directly interfacing with USB or ACPI hardware rather than relying on official drivers. This project supports a broad range of effects and modes, allowing users to customize RGB lighting zones, create and switch profiles based on system states (like power source or running applications), and generate lighting behaviors tied to thermal and performance events. Because it operates at a low level, alienfx-tools can offer faster update rates and more flexible configurations compared to some manufacturer software. It includes both command-line and graphical frontend elements to support different user preferences, making it suitable for automation as well as interactive use. Enthusiasts use it to tailor lighting aesthetics and system responsiveness, especially on systems where official Alienware control panels are unavailable or problematic. -
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Steam Deck Tools
Fan, Overlay, Power Control and Steam Controller for Windows
Steam Deck Tools is a community-driven collection of utilities designed to enhance the experience of running Windows on the Valve Steam Deck. Hosted on GitHub and written primarily in C#, this suite bundles multiple practical tools into a single package, including fan control, performance overlay, power (TDP and refresh rate) adjustment, and Steam Controller support. The tools aim to fill functionality gaps when running Windows on a device originally optimized for SteamOS, such as adjusting thermal behavior or viewing real-time stats like FPS. Users have noted the project provides a lightweight alternative to other companion utilities and can be especially helpful when default drivers or settings don’t cover desired features. Because this software interacts with low-level system controls, its use carries some risk of instability, and it’s provided on a best-effort basis with documentation on installation and troubleshooting. -
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SpeedFan
SpeedFan is an advanced system monitoring tool
SpeedFan lets you take a deeper view at the status of your computer. Almost every computer includes support for hardware monitoring. Accessing digital temperature sensors is really useful. If you are trying to figure out why your PC hangs when under heavy load or after some hours of usage, SpeedFan might help you find the real cause. Very often it is a poor power supply, or an improperly installed heatsink that lead to behaviours that we tend to associate (incorrectly) with errors from the operating system. SpeedFan automatically searches your computer for informative chips: the hardware monitor chips. SpeedFan can display voltages, fan speeds and temperatures. On rare occasions, the BIOS doesn't activate such features. SpeedFan tries to enable them as long as this is a safe thing to do. Not only the motherboard is searched, but also some video cards and almost every currently sold hard disk. SpeedFan can access status info from EIDE, SATA and even SCSI drives -
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FanCtrl
FanCtrl allows you to automatically control the fan speed
FanCtrl is a Windows desktop utility focused on automatically controlling PC fan speeds using temperature sensors and customizable fan curves, so your cooling behavior matches how you actually use your system. It combines monitoring and control in one place, letting you view temperatures, fan RPM, and control percentages while you tune how aggressively each fan responds. The project supports a range of control backends and integrations, including motherboard fan headers and several popular cooling ecosystems, and it can also pull sensor data from common monitoring tools so your fan logic can react to the readings you trust. A core concept is “auto fan control” profiles where you pick a target temperature sensor, select which fans should follow it, and then shape the curve via a graph-like interface. It also includes quality-of-life options like renaming items, choosing units (including Fahrenheit), and starting minimized for a set-it-and-forget-it setup. -
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Lenovo Legion Linux Support
Driver and tools for controlling Lenovo Legion laptops in Linux
Lenovo Legion Linux (LLL) brings additional drivers and tools for Lenovo Legion series laptops to Linux. It is the alternative to Lenovo Vantage or Legion Zone (both Windows only). It allows you to control features like the fan curve, power mode, power limits, rapid charging, and more. This has been achieved through reverse engineering and disassembling the ACPI firmware, as well as the firmware and memory of the embedded controller (EC). -
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ATTENTION: This project is not maintained anymore. Current Macs properly manage temperature and fans. Speed fan controller and temp monitoring for MacBook Pro Unibody (Nvidia) for Windows under BootCamp. It allows to control MacBook fans speeds depending on the CPU and GPU temperature. ATTENTION: This program is designed and tested only on MacBook Pro with NVIDIA GPU. On newer MacBooks with ATI GPU the GPU temperature is not checked. On iMacs some sensors and fans are not used. In any case USE AT YOUR OWN RISK, I'm not responsible for overheating or hardware damage.
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Allows control of fans in Apple computers in Windows and monitoring of temperatures. All Intel Macs supported + any conflicting programs are automatically closed and reopened. Project is no longer being actively developed. See forum for alternatives.
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MSI Afterburner
MSI Afterburner: Overclock, monitor, and optimize your GPU.
MSI Afterburner is the world's most recognized and widely used graphics card overclocking utility. It provides a comprehensive suite of tools for gamers and PC enthusiasts to enhance their graphics card's performance and monitor its health. With MSI Afterburner, users can overclock their GPU to achieve higher frame rates in games, undervolt to reduce power consumption and heat, and customize fan curves for optimal cooling. The software also includes an on-screen display (OSD) feature that overlays real-time statistics directly onto games, allowing users to keep track of their system's performance without minimizing their applications. Furthermore, MSI Afterburner supports video recording, enabling users to capture their gameplay or overclocking sessions with ease. Its compatibility with all major graphics card brands makes it an indispensable tool for anyone looking to push their hardware to the limit. -
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Argus Fan Monitor
Control fan speed and monitor the temperature of system components.
Argus Monitor is a powerful fan-control and system-monitoring tool that gives you complete control over cooling behavior across your entire PC. It allows you to manage CPU, GPU, motherboard, and AIO fans using fixed values or advanced temperature-based control curves sourced from any sensor in your system. With multi-controller support, fan profiles, hysteresis, and temperature averaging, Argus Monitor offers smooth, precise fan adjustments with minimal noise fluctuation. The software also includes robust temperature monitoring for CPUs, GPUs, SSDs, RAM, and additional sensor channels. For supported devices, it provides RGB control as well as gadget and tray-icon displays for quick system insights. Lightweight, stable, privacy-respecting, and fully customizable, Argus Monitor is one of the most comprehensive PC cooling and monitoring solutions available. -
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iFanAutoControl is an application to automatic control the fans of the computer and regulate the temperature of MacBook and MacBookPro Apple Computers based on Intel processors and Windows OS.
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Open Hardware Monitor for Alienware
Open Hardware Monitor Alienware r10 edition
Open Hardware Monitor for Alienware r10 with automatic and manual fan curves. Replaces AWCC and outdated SpeedFan. -
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Antec Kuhler 920 Linux Driver/Control
Antec Kuhler 920 Linux Driver/Control
Linux Driver and control program for the Antec H20 - 920 Series liquid coolers. -
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Oh My Fan!
Keep your Mac away from heat!
Oh My Fan! is a very useful app. It allows you to adjust your fan speed to make your Intel Mac run cooler. Benefit Highlighting: * Run in background mode with the CPU temperature info diplayed in the menu bar. * Drag the pointer in dashboard to adjust the fan speed. * You can control the fan speed from within the menubar easily. * See the temperature values in either Celsius(℃) or Fahrenheit(℉). * You can choose whether the Oh My Fan! will start at login, and I recommend do so. In order to not damage your machine, Oh My Fan! does not let you set a minimum/maximum speed to a value below/above Apple's defaults. If you encounter any issue, you can email me: Tong-G@outlook.com. If you are using GnuPG, you can send me encrypt email, my GnuPG pub key is sosueme@openmailbox.org, you can retrieve it from keyserver. -
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Okapi Viewer
Java app used for monitoring Okapi Solar Furnace fan control systems
The Okapi Viewer app is intended for use by owners of Okapi solar air heater fan control systems. It is used to monitor data (inlet, outlet, ambient temperatures and fan speeds) broadcast by the Okapi systems that use the optional Bluetooth transceiver module. The app can also be connected to "hacked" Okapi systems by wiring a PL2303 USB adapter (or similar) to the "hacked" Okapi. -
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Phoebetria
Software control for the BitFenix Recon fan controller.
Phoebetria lets you take control of your BitFenix Recon fan controller on more operating systems than the official software. It offers all of the same features as the official software, with the exception of remote access, and has been tested on Windows, Linux, and OS X. The current plan is that future releases will add functionality and control that the official software does not provide -- giving you even more control over your fans. -
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overdrive5
AMD GPU power/fan control via ADL OverDrive5 interface
Command line tool that uses AMD ADL OverDrive5 interface to control power and fan speed of their GPU boards. Look at the Wiki page about usage. Works on Windows and Linux (if video driver is loaded). -
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µClimaControl
Home made clima control for short expenses. PIC18F4455 based hardware.
Firmware for small µController board with 4x PT1000 temperature channels which control the temperature in one room via two fan units. PIC18F4455 based hardware. Can be used to control temperature in the basement or guest house, within a computer case, etc.
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