CoolMyMac is a lightweight Menu Bar utility that gives you full control over your Mac's fans — without the complexity. Built for Apple Silicon and Intel, under 2 MB.
Features
The Menu Bar icon shifts from green to red as your CPU and GPU heat up — giving you an instant at-a-glance thermal read without opening anything.
Native, low-level IOKit sensor readings on both architectures. Package power, CPU/GPU temperatures, and clock speeds — all from one app.
Choose from System (Apple defaults), Balanced, Performance, or Max — or dial in your own Custom curve with any min/max RPM you like.
A secure background helper uses native SMAppService and XPC. It's purely event-driven — zero CPU cycles while idle, no polling loops.
The bundled coolmymac CLI lets you script profile changes and query sensors from the terminal: coolmymac profile set max.
The app runs unprivileged. Fan writes go through a code-signed XPC daemon — no sudo prompts, no persistent elevated processes outside of LaunchDaemon.
Installation
Recommended
Install CoolMyMac and the CLI tool in one step. Updates automatically with brew upgrade.
Manual
Download the latest release, open the DMG, and drag CoolMyMac to your Applications folder.
Download latest DMG