Alternatives to ProcessSpy

Tool to explore all the running tasks (processes)

System monitor for the menu bar

System monitoring app

Status monitoring

Analysis tool for security research and malware triage

Htop on steroids

Monitor process activity

Monitors the computer system and optimises its performance

Set of CPU, memory, disk, and network monitoring tools

SQL powered operating system instrumentation and analytics

System monitoring dashboard with historical analytics

Displays all open files and sockets in use by all running processes