Seeports

Menu bar port inspector to see what's running

Requires macOS Ventura 13.5 or later

Seeports is a menu bar utility that shows you every TCP port listening on your Mac. No more guessing which app grabbed port 3000, or fumbling with lsof in the terminal. It works fully sandboxed from the App Store—no special permissions needed.

Ports are automatically grouped by service—Docker, OrbStack, Kubernetes, Cloudflare, and more—so you can instantly see what’s running. Copy a localhost URL, open it in your browser, or terminate a rogue process, all from the menu bar.

Menu Bar

Always accessible, shows port count, no dock clutter
Port Scanning

Finds every listening TCP port system-wide, even from the sandbox
Categorisation

Groups ports by service—Docker, K8s, OrbStack, and more
Developer Actions

Copy URL, open in browser, or search for any port
Process Control

Terminate or force kill processes holding ports
Auto-Refresh

Configurable scan intervals from 2 to 60 seconds

Port Scanning

Discovers every listening TCP port on your Mac—not just common dev ports
Works fully sandboxed from the App Store, no special permissions needed
Resolves process names automatically, even for background daemons
Maps well-known ports to service names (SMTP, Kerberos, SMB, etc.)
Shows port number, process name, and PID for each entry

Intelligent Categorisation

Automatically groups ports by detected service
Supports Localmost, Docker, OrbStack, Kubernetes, Cloudflare
Unrecognised services grouped under Other
Category headers with process sub-groups
Clean separation between service groups

Developer Actions

Copy URL (http://localhost:PORT) to clipboard
Open port directly in default browser
Search Google for port and process documentation
Copy local address and port number

Process Control

Terminate process (SIGTERM) from the menu
Force kill process (SIGKILL) when needed
View PID for each listening port

Port Management

Hide individual ports you don’t care about
Hide entire process groups with Option key
Show hidden ports on demand
Toggle group headings for hidden items

Auto-Refresh

Configurable refresh intervals: 2s, 5s, 10s, 30s, 60s
Manual refresh with status indication
Timer-based automatic scanning

Settings

Toggle process name visibility
Show/hide port count in menu bar
Show/hide group headings
Launch at login

Optimised

Only 218 KB app download size
Less than 20 MB base memory footprint

How It Compares

Here’s how this app compares to other similar apps.

	Seeports	Open Ports	Sloth	Terminal
Native Mac app	✓	✓	✓	✓
App Store	✓	–	–	–
Menu bar access	✓	✓	–	–
Process terminate	✓	✓	✓	✓
Port categories	✓	–	–	–
Copy URL	✓	–	–	–
Open in browser	✓	–	–	–
Web search port info	✓	–	–	–
Auto-group ports	✓	–	–	–
Auto-refresh	✓	–	–	–
Hide/filter ports	Any	Range	–	–
Docker support	✓	✓	–	–