cpuinfo for Mac

CPUInfo is a free macOS utility that places a compact CPU monitor in the menu bar so you can watch processor activity without opening a separate app. It provides up-to-the-second information about system load while staying unobtrusive and easy to read.

Core advantages

Minimal impact on system resources — runs quietly in the background so it won’t become a burden when you’re multitasking or running heavy workloads.
Valuable for both everyday users and software engineers who need an immediate sense of how tasks affect processor usage.
Clean, pared-down display showing load percentages and usage breakdowns so you can quickly assess performance at a glance.

How it helps

Because it surfaces live CPU statistics right in the menu bar, CPUInfo makes it simple to spot processes that spike usage and to monitor overall system health during demanding operations. Its small footprint and straightforward presentation make it suitable whether you’re trying to squeeze more life from a laptop or tracking resource use while developing and testing.

Suggested substitute

CheatSheet (free) — a recommended alternative that offers a different approach to productivity and system awareness:

Lightweight and simple to use, with a UI that focuses on quick access to useful system information.
Designed to complement workflows where you want an unobtrusive aid rather than a full monitoring suite.