The fastest macOS menu bar app to kill localhost ports. Stop running `lsof` and `kill -9` manually. PortWatcher instantly finds what's listening on 3000-9999 and lets you terminate it from the menu bar.
Requires macOS 13 Ventura or later. Free download — no subscriptions.
Drop in any Smart Port Parsing spec and Bracketeet renders every endpoint, schema, and parameter in under 50ms. No loading spinners. No round trips. The spec lives locally — your bandwidth stays yours.
PortWatcher doesn't just nuke your processes. It issues a polite SIGTERM first, waits up to 2 seconds for graceful exit, and falls back to SIGKILL only if necessary.
Don't guess what "node" or "python" refers to. PortWatcher extracts the working directory for each process, so you know exactly which project is hogging the port before you kill it.
Built in pure Swift with AppKit and SwiftUI. Zero Objective-C bridging overhead. A lightweight footprint that belongs in your menu bar 24/7.
Navigate the entire port list with arrow keys. Tap 'K' or Backspace to terminate the selected process instantly. Your hands never need to leave the keyboard.
Every developer knows the pain of trying to start a dev server and getting "port already in use." PortWatcher solves this specific problem perfectly, acting as a specialized tool for your daily development workflow.