Compare software

ProcessSpy vs htop: catalog facts
ProcessSpyhtop
Free

Offered as a direct download from the developer's site.

Free

Free and open source under the GPL.

macOS macOS, Linux, Command line
  • Per-process CPU and memory history
  • Recall of processes that have already exited
  • Kill, renice and filter processes interactively without typing PIDs
  • Per-core meters and tree view make load easy to read at a glance
  • macOS only, and requires macOS 14 or later
  • Terminal only, with no historical graphing
  • Some counters differ per platform outside Linux
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-2.0
Not stated if an account is needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.