Mac guides

Short, practical answers for the things macOS makes hard to see.

PortPeek

• Find what is using a port on Mac
• Kill a process on a port on Mac
• Free port 3000 on Mac
• lsof on Mac: find process by port
• Mac port manager
• Mac port monitor

FileLockPeek

• Find what process is using a file on Mac

DisplayPeek

• Check monitor refresh rate on Mac

USBPeek

• See USB devices on Mac

SleepPeek

• Why won't my Mac go to sleep?

BatteryPeek (coming soon)

• Check MacBook battery health

NetPeek (coming soon)

• Check Wi-Fi signal strength on Mac