Route Planner

How to Use

Create a cruise below - pick start/end ports or search a location, or import a CSV/GeoJSON file.
Drag stations on the map, or click the route line to insert a new one where you click.
Edit any table cell directly (name, position, speed, times) - distances and times recalculate automatically.
Set a "Latest End" deadline to see your time budget (green = on schedule, red = behind).
Everything saves automatically to this browser as you go. Use ☰ My Cruises (top of the planner) to come back here and switch cruises any time, or Delete This Cruise to remove one for good.

Where Your Data Lives

Cruises are stored only in this browser, on this device - nothing is uploaded anywhere unless you turn on collaboration. That means clearing this browser's site data, switching browsers or devices, or reinstalling will lose them.

To protect a cruise you care about: regularly download it as a CSV or GeoJSON file (buttons in the planner) so you have a copy outside the browser, or turn on collaboration below - a shared cruise also lives in Firestore, giving it a backup beyond just this browser.

Collaboration (Optional)

A cruise can be shared so multiple people see and edit the same plan live. Turn it on with the checkbox below when creating a cruise, or click 🔗 Collaborate in the header of one you already have open, then send the link it copies to your collaborators.

Current limitations: anyone with the link can view and edit - there's no login or read-only mode, so treat the link like an unlisted document link. There's no indication of who else is viewing, and simultaneous edits are last-write-wins (two people editing the same thing at once can silently overwrite each other). It requires an internet connection to sync; changes made offline stay local until you're back online. And this requires the app to have a Firebase project configured - if it doesn't, collaboration options are simply hidden.

Your Cruises

Quick Start: Try the Planner

Load a demo route with 8 stations from New York to Miami

Have a Shared Cruise Link?

Paste the link or code someone sent you to join their cruise plan

Option 1: Import from File

Upload a previously exported route file (CSV or GeoJSON)

CSV File:

GeoJSON File:

OR

Option 2: Create New Route

Cruise Name:

Start Position

Quick Select (200 Major Ports):

Or Search Any Location:

Or enter coordinates manually below Name:

Latitude:

Longitude:

End Position

Quick Select (200 Major Ports):

Or Search Any Location:

Or enter coordinates manually below Name:

Latitude:

Longitude:

Ship Settings

Default Ship Speed (knots):

Number of Stations:

Stations will be evenly distributed along the route

Cruise Dates

Start Date & Time:

Latest End (deadline):

Must arrive at final station by this date/time

Ship Route Planner