How to Show CPU Usage on Your Mac Desktop

To show CPU usage on your Mac desktop, open Activity Monitor and choose Window → CPU Usage or CPU History to keep a live graph on screen — it is free and built in. For an always-on readout you do not have to keep a window open for, a menu bar monitor like iStat Menus or the free Stats app works well, and a live wallpaper can render CPU directly into your background. Here is each option.

Activity Monitor (built in)

Every Mac includes Activity Monitor, which shows live CPU usage and can keep a small graph visible.

1. Open Activity Monitor from Applications → Utilities (or Spotlight).
2. Click the CPU tab to see per-process usage sorted by % CPU.
3. Choose Window → CPU Usage or Window → CPU History to keep a floating graph on screen.
4. Right-click the Dock icon → Dock Icon → Show CPU Usage for a tiny live graph in the Dock.

This is free, native, and accurate. The limit: it is a separate window or Dock graphic, not a desktop widget, so it is more of a diagnostic tool than a glanceable ambient readout. There is no native macOS widget that shows a continuous CPU percentage on the desktop.

Menu bar system monitors

For an always-visible readout that never gets covered by a window, a menu bar monitor is the standard answer:

• iStat Menus — the long-standing, deeply detailed pick: CPU, GPU, memory, network, temperatures, and disk in the menu bar. Paid.
• Stats — a free, open-source monitor covering CPU, memory, disk, sensors, and network with a clean look.
• MenuMeters — an old-school, free, lightweight CPU/memory/disk/network readout.

These keep stats at the top edge of the screen. If you like the data but want it on your wallpaper instead of the menu bar, compare approaches in our iStat Menus alternative write-up. Worried about overhead? See do desktop widgets slow down your Mac.

Show CPU on your wallpaper with Orbl

If you would rather see CPU as part of your background instead of a menu bar number, a live wallpaper dashboard is one way to do it. Orbl is a native macOS app (macOS 14 and later) that renders machine stats into your wallpaper.

Quick walkthrough:

1. Download and open Orbl, then allow it to set your wallpaper.
2. Enable the machine stats module to show CPU, memory, disk, and Wi-Fi.
3. Add device batteries (AirPods, mice, keyboards), a clock, or weather around it.
4. Pick a layout and theme so the stats sit where you want behind your icons.

Because it is a native Swift app, it idles near 0% CPU itself, stays under 100MB of RAM, and is 100% local. Orbl is free, with an optional one-time $29 Premium upgrade (lifetime, no subscription). It is one approach among several, best when you want CPU and memory to feel like ambient background info rather than a menu bar figure you squint at.

Which option should you pick?

Option	Best for	Cost
Activity Monitor	Diagnosing a busy process	Free, native
Menu bar monitor	Always-on stats at the edge	Free or paid
Live wallpaper (Orbl)	CPU and memory baked into the wallpaper	Free + one-time

For a quick diagnosis, Activity Monitor is enough. For an always-visible readout, a menu bar monitor like iStat Menus or Stats is hard to beat. If you want CPU and memory as a calm, glanceable part of your desktop, a wallpaper-based approach is worth a look. For the broader widget picture, see our best Mac desktop widgets roundup.