LiquidCTL

liquidctl provides cross-platform command-line and Python drivers for liquid coolers and other devices.

github.com/liquidctl/liquidctl
LiquidCTL homepage screenshot

About LiquidCTL

LiquidCTL is an open-source command-line tool and Python library for AIO liquid coolers and other devices, including pump, fan and LED controllers. It can list connected devices, initialize them, report readings such as liquid temperature, fan speed and pump speed, and change fan speed, pump speed and lighting settings.

Support is limited to the specific models listed in its supported-devices table, each with a minimum recommended version. Setup documentation covers installation on Linux, macOS, Windows, FreeBSD and DragonFly BSD, including device access and running at boot.

Key features

  • List connected supported coolers and controllers
  • Report liquid temperature, fan speed and pump speed
  • Adjust fan speed curves and pump speed
  • Set lighting colors and lighting effects
  • Filter target devices with match options
  • Control devices from Python scripts and programs
Best for: Best for users who want to monitor and control supported coolers and fan or LED controllers from the command line or Python.
Good for
  • Covers many AIO cooler and controller models from multiple vendors
  • Provides both command-line commands and Python drivers for scripting
  • Reports detailed status such as temperatures, fan speeds and pump speeds
Watch out for
  • Only works with models listed in the supported-devices table
  • Some devices require a specific minimum liquidctl version

LiquidCTL at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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LiquidCTL FAQ

Which devices does LiquidCTL support?
Specific AIO coolers, pump controllers and fan/LED controllers from vendors including ASUS, Corsair, NZXT, Aquacomputer and others, as listed in the supported-devices table with minimum recommended versions.
How can LiquidCTL run automatically at boot?
The documentation describes setup using systemd on Linux, Task Scheduler on Windows, and various methods on macOS.
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