#To list any process listening to the port 8080:
lsof -i:8080
#To kill any process listening to the port 8080:
kill $(lsof -t -i:8080)
#or more violently:
kill -9 $(lsof -t -i:8080)netstat -ano | findstr "PORT_NUMBER"
taskkill /PID PORT_NUMBER /f// Option 1: if you have npm@5.2.0^ version
npx kill-port 8080
// Linux
kill -9 $(lsof -t -i tcp:8080)
// Windows command line:
for /f "tokens=5" %a in ('netstat -aon ^| find ":8080" ^| find "LISTENING"') do taskkill /f /pid %a
// Windows bat-file:
for /f "tokens=5" %%a in ('netstat -aon ^| find ":8080" ^| find "LISTENING"') do taskkill /f /pid %%a
sudo kill -9 $(lsof -i :3000 -t)fuser -k 8080/tcp