Peek-a-Boo 2.8.2

Peek-a-Boo is the most intuitive way to explore what’s happening in the universe of processes on your Mac. It is a Mac OS X utility to monitor and manipulate all running processes. You can watch how much CPU time each process uses, adjust processes’ priorities, and monitor process information; the innovative process throb window shows in an instant the activity of all the processes on your system.

There are many ways to peek under the hood of Mac OS X with Peek-a-Boo; you can choose between watching overall system behavior in a variety of windows, or zoom in to scrutinize individual process behavior. (A full description of what’s new in each version of Peek-a-Boo is always on our version history page.)

overall system behavior

These views focus on broader overall system behavior, taking all processes into account.


the innovative process throb window

Peek-a-Boo Process Throb

the traditional process list window

Process List

the cumulative system information window

System Information Window

isolated process information

These views allow you to isolate an individual process, and focus on that specific process’s characteristics.


observe with process information windows

Process Information Window




track with logging windows

Logging Window




monitor with cpu usage history windows

CPU window



After you’ve downloaded Peek-a-Boo, tried it out, and you’re satisfied that Peek-a-Boo works properly and meets your needs, you need to pay for it. Peek-a-Boo’s price is $19.95 for a single-user license.


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