macOS 13+ · Free

Your CPU,
as an aquarium.

Live pixel art creatures swim in your menu bar, each one mapped to a real process on your Mac.

Download free

Features

Hover to identify
Every creature maps to a real process. Hover to freeze it mid-swim and see exactly what's quietly eating your CPU in the background.
Drop food
Click anywhere in the tank. Fish break formation and dart toward the pellets. It does nothing useful and that's the point.
Five presets
Off, Calm, Normal, Chaos, and Advanced. Chaos floods the tank at lower CPU thresholds so it's always alive. Advanced lets you set each tier yourself.

Under the hood

Polls /bin/ps every two seconds. Background queue, nothing continuous.
One creature per process. No grouping, no averaging, no abstraction.
Zero dependencies. Pure SwiftUI and SpriteKit, nothing else linked in.
No network access. No telemetry. Reads CPU usage and nothing else.
Reads process names only. No personal data, no file access, nothing stored.
Lives in your menu bar. No dock icon. Doesn't take up screen real estate.

Your Mac has been running
all this time anyway.

Might as well watch it swim.

Download free macOS 13+ · Free · No account needed