mac list all ports in use code example

Example 1: list used ports on mac

sudo lsof -PiTCP -sTCP:LISTEN

COMMAND     PID      USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
GitHub      850 grgarside   6u   IPv4 0x23c345381d089301      0t0  TCP localhost:25035 (LISTEN)

Example 2: how to port number of 8080 in macos

$ lsof -i :8080 | grep LISTEN

java    42975 mkyong   57u  IPv6 0xf10ca37d995a077f      0t0  TCP *:http-alt (LISTEN)

Example 3: check all the ports in use mac

$ npx kill-port 3000 8080 8081

Process on port 3000 killed
Process on port 8080 killed
Process on port 8081 killed