wiump is a small app written in Rust to find which process is using a given port. The app scans TCP and UDP ports and returns the process name and PID.
Download the latest precompiled binary for your platform from the releases page.
Simply install the wiump formula by tapping my personal tap:
brew install patrickdappollonio/tap/wiumpwiump will scan all ports and display a table of all the ports and their associated processes. Here's an example of the output:
$ wiump
PORT PID UID USER STATUS PROTOCOL PROCESS_NAME LOCAL REMOTE
53 101 101 systemd-resolve LISTEN TCP systemd-resolved 127.0.0.53:53 0.0.0.0:0
80 1234 1000 webdev LISTEN TCP nginx 0.0.0.0:80 0.0.0.0:0
443 1234 1000 webdev LISTEN TCP nginx 0.0.0.0:443 0.0.0.0:0
3000 5678 1000 webdev LISTEN TCP node 127.0.0.1:3000 0.0.0.0:0
5432 999 999 postgres LISTEN TCP postgres 127.0.0.1:5432 0.0.0.0:0
8080 9012 1000 webdev LISTEN TCP6 java :::8080 :::0
22 0 0 root LISTEN TCP sshd 0.0.0.0:22 0.0.0.0:0If provided with a port using -p or --port, it will display information just for that resource. For example, wiump -p 3000 will show you that a node process is using that port:
$ wiump --port 3000
Port 3000/TCP:
Local Address: 127.0.0.1:3000
Remote Address: 0.0.0.0:0
State: LISTEN
Process: node (PID: 5678)
Command: node server.js
Executable: /usr/bin/node
Working Directory: /home/webdev/myapp
UID: 1000 (User: webdev)Or, for port 53, you'll get the following (note the use of sudo to be able to fetch process names from other users):
$ sudo wiump --port 53
Port 53/TCP:
Local Address: 127.0.0.53:53
Remote Address: 0.0.0.0:0
State: LISTEN
Process: systemd-resolve (PID: 170)
UID: 101 (User: systemd-resolve)
Port 53/TCP:
Local Address: 10.255.255.254:53
Remote Address: 0.0.0.0:0
State: LISTEN
Process: unknown (PID: 0)
UID: unknown (User: unknown)Seeing (unknown) means your user isn't privileged enough to see the process name or one hasn't been reported or we couldn't map the PID to another application except the kernel. You can run wiump with sudo to get the process name if one should exist and is available to root.