KillSwitch

A lightweight macOS process manager utility. Lists the processes belonging to the current user, shows PID, CPU%, and memory usage, and lets you terminate them with a single click.

Features

• Real-time process list (refreshes every 3s)
• Works for whichever user is running the app (no hardcoded username)
• Collapses helper/child processes into their main (parent) process, aggregating CPU and memory — e.g. Spotify and its helpers appear as a single entry
• Shows real application icons where available for easier recognition
• Filter processes by name
• Sort by CPU usage, memory, name, or PID
• One-click process termination (SIGTERM, falls back to SIGKILL)
• Runs at login via LaunchAgent
• Dark, translucent UI inspired by Raycast

Requirements

• macOS 13+ (Ventura or later)
• Swift 5.9+
• Xcode Command Line Tools

Build & Install

chmod +x install.sh uninstall.sh
./install.sh

This will:

1. Build the release binary
2. Copy it to /usr/local/bin/KillSwitch
3. Install a LaunchAgent so it starts at login

Uninstall

./uninstall.sh

Run without installing

swift build -c release
.build/release/KillSwitch

Tech Stack

• Swift 5.9
• SwiftUI
• AppKit (NSWorkspace) for application icons
• macOS process APIs (ps command)
• LaunchAgent for auto-start