CPUMonitor-macOS

A native macOS menu bar app that monitors CPU usage and alerts you when a process has been using high CPU for an extended period.

Features

• Menu bar icon that fades from green → yellow → red as high CPU duration increases
• Notification with process name and PID after 60 seconds of sustained 90%+ CPU usage
• Optional "Run on Login" via LaunchAgent
• Zero third-party dependencies — pure Swift + AppKit

Requirements

• macOS 11.0+
• Xcode Command Line Tools (xcode-select --install)

Build & Run

./build.sh
open build/CPUMonitor.app

Install

cp -r build/CPUMonitor.app /Applications/

Related

• CPUMonitor — Linux version