Port Bouncer
See and evict whatever is holding port 3000
Notarized DMG. Runs as a free trial out of the box; a license key unlocks the Evict action.

- Platform
- Mac
- Category
- Developer Tools
- Price
- $2.99, one-time
- Made by
- Parent Systems
Everything in one menu-bar drop-down
Stop grepping lsof.
Port Bouncer is a menu-bar app that shows every listening TCP port, which process owns it, and the command you ran to launch it. One click evicts a runaway dev server.
- Live menu-bar list of every listening TCP port on your Mac
- One-click evict for any process holding a port
- Shows the full command line ("yarn dev", "node server.js", etc.), not just the process name
- Process working directory so you know which project spawned each listener
- Memory usage per process to spot runaway servers
Port Bouncer and your data
Port Bouncer reads the list of listening ports on your own Mac. There's no account to create and nothing to sign in to.