Mojo Pulse / Tools / Open ports

Open ports

Know what's listening.

Every server on your Mac — the databases, the dev servers, the things apps quietly run — listens on a port. Pulse shows them all, and makes the one distinction that actually matters: reachable from the network, or local-only.

Open ports list showing processes bound to localhost

Real screenshot from the current release. Click to zoom.

The split that matters

A database bound to localhost is Tuesday. The same database reachable from the network is a decision someone should have made on purpose. Pulse leads with that distinction, so you scrutinize the five ports that face the world instead of scrolling past the thirteen that don't.

Every port, owned

Each entry names the process and pid behind it, and clicks through to the full process inspector — signing, connections, open files — when a listener deserves a background check.

The dev-server tripwire

Bind a dev server to 0.0.0.0 and your work-in-progress is open to the whole coffee shop. Pulse's security review catches exactly that, names the process and port, and quotes the one-line fix — this window is where you come to confirm it worked.

Under the hoodUnprivileged socket enumeration, on device. Feeds the security review's exposed-listener checks; findings escalate on untrusted Wi-Fi.

Audit your Mac's open doors.

Open ports is one of eighteen tools in the free download. 9.5 MB, notarized by Apple.

Keep exploring: Security review · Network activity · all 18 tools