Alternatives to PortKiller

Window peeking utility app

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

Window manager

Native GUI for Apple Containers

Menu bar toolbox

Tool to scan and monitor the network

Network monitoring and troubleshooting tool

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

Hides the Dock when it is overlapped by a window

Menu bar performance monitor with recorded history and analytics

Monitors computer mic and webcam

Status monitoring