AirStats

Lightweight menu bar system monitor for macOS

homey9545·Published on Nov 1, 2026·5 reputationReputation invested into this product to boost its ranking. Anyone can spend the reputation they've earned here — recent investments count for more and lift the product higher on the leaderboard. This is separate from community upvotes.

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About AirStats

AirStats is a free, open-source system monitor for macOS that lives in your menu bar. It is built for Apple silicon Macs and shows the numbers you actually check: CPU load, memory pressure, GPU activity, network throughput, disk usage, battery, temperature, and the processes using the most resources right now.

You choose which metrics sit in the menu bar. There are sixteen to pick from, and each one can have its own colour so you can read the bar at a glance. Click any metric to open a detailed panel with the full picture and a live process list. If you prefer something always visible, pin a configurable widget to the desktop instead.

Threshold alerts let you set a limit on any metric, such as CPU above 90 percent or free disk under 10 GB, and AirStats tells you when it is crossed. Keyboard shortcuts open and close the panel without touching the mouse.

AirStats is lightweight by design. It is a native Mac app that stays out of the way while you work. The full source is on GitHub under the MIT license, so you can read exactly what it does, build it yourself, or contribute. There is no account, no subscription, and no paid tier. Download it from airstats.app and it is running from the first launch.

✦ Good to know

The app is free with no account, trial or paid tier, and is open source under the MIT license.
It shows sixteen menu bar metrics and a click-through panel with per-core load and top processes.
It runs as one process with no helper or launch agent, and sends no data unless public IP lookup is enabled.
It requires an Apple silicon Mac and macOS 14 or later; Intel Macs are not yet supported.

Taken from the product's own website and re-checked automatically.

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