system-monitor

ftop

Nongfsq

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A small, quiet system monitor for Apple Silicon Macs: one floating glass panel that works at any size.

iglance

moneypulation

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A free system monitor for macOS. The menu bar shows CPU, memory, disk, network, battery, fan and temperature status at a glance, with detailed readings on click, in an open-source and lightweight package. It suits people who want machine state visible without a heavy monitoring suite.

boost

Kernel-Hunter

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Free, open source Mac menu bar app for memory and disk. See what uses your RAM, keep a week of history, pause idle apps, find large files, and uninstall cleanly. No network access. - Kernel-Hunter/...

pulse

emgeorrk

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Native macOS menu bar system monitor — CPU, memory, network, temps, fans & power. The popular GNOME tool Vitals, for the Mac.

mole-widget

bsnkhua

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Lightweight macOS desktop system monitor widget — live CPU, memory, disk, network, battery & process metrics. Swift + SwiftUI. - TadelUnso/mole-widget