Should be built into macOS
Replaced a shell alias I had used for eight years.
Wei C. · 14 Jun 2026
Developer Tools Free v1.2.1
Portfall
See what is on your ports. Kill it from there.
4.7 · 1,503
Every developer has run lsof -i :3000 more times than they can count. Portfall keeps that list live in your menu bar: port, process, command, working directory, and how long it has been up. Click to reveal the project folder, or stop the process without hunting for the terminal tab it is running in.
Free, no catch
No account, no telemetry, no upsell screen. It does one thing.
Full context
Process, full command, working directory and uptime for every listener.
One-click stop
SIGTERM first, SIGKILL if you hold Option. Confirms before touching anything system-owned.
Free
Download it. That is the whole transaction.
Download for Mac- Every feature
- No account required
- No telemetry
Screenshots
What it does
What it shows
- Every TCP and UDP listener, IPv4 and IPv6
- Owning process, PID, full command line and working directory
- Docker containers mapped back to their published ports
- Uptime, so you can spot the server you forgot in March
What's new
1.2.1 30 May 2026
- Docker port mapping now resolves container names
- Fixed a hang when a process died mid-refresh
