Free tool
Ship Tracker
See the big ships waiting to unload at four of America's busiest ports — live, free, and with no sign-up. Every ship on the map is real, straight from its own radio beacon.
Free tool — always freeEvery ship idling at anchor is ~$20,000+/day of demurrage risk for someone.
ContainerTankerCargo / bulkOtherLast known positions
Tap any ship on the map to see its name, type, speed, and heading.
Vessels in view
0
Waiting for the live feed to warm up.
0
underway
0
at rest
How we compute this
Every large ship carries an AIS transponder — a radio beacon that broadcasts its position, speed, and heading every few seconds, as maritime law requires. Our server listens to that broadcast for four busy U.S. ports and keeps a running picture. This page asks for that picture every 10 seconds and draws it. We relay real broadcasts; we never simulate a ship. When the feed is quiet, we say so instead of inventing one.
Want this watching your lane?
We'll email you one worked example of demurrage exposure for a port you name — free, within a day.
See the expensive version of this problem: Freight demurrage — the $20,000/day problem
How it works
- Big ships carry a radio beacon called AIS. It shares the ship's position, speed, and course every few seconds.
- Our server listens to that feed for four busy U.S. ports and keeps a running picture of every ship it hears.
- This page asks our server for that picture every 10 seconds and draws it — no app, no login, no cost to you.
Common questions
- What do the colors mean?
- Each color is the kind of ship: gold for container ships, red for tankers, green for cargo and bulk carriers, and tan for everything else. An arrow points the way a moving ship is headed; a dot means the ship is sitting still.
- Is this live?
- Yes, when the banner says so. If the live feed goes quiet, we tell you and show the last real positions — we never fill the map with made-up ships.
- Why should a business care?
- If your goods ride on these ships, every extra day a container waits at the port can cost real money. See the freight demurrage problem for the dollars behind the delay.