Passage.
Stored on this device
THE WHOLE MOVE, IN ONE PLACE

A way through.

A doorway is only part of the story. Plan the turn, the tilt,
and everything between, before moving day.

Your space stays yours

No account. No uploads.
Made to inspect, save, and share.

SPATIAL WORKSPACE

The hallway turn

Your piece Checked route Measured space
Drag to orbit · Scroll to zoom
Opening your workspace
A LITTLE ROOM TO THINK

Try the whole movement.

Explore an example, then make the measurements yours.

START
Example scene
MEASURE FIRST. MOVE SECOND.

The turn matters
as much as the door.

01

Model the whole way in

Include the space on both sides of an opening. Add the radiator, the low beam, the other wall. A route is only as complete as its measurements.

02

Follow a continuous route

Replay the lift and rotation together. The check covers the movement between positions, including the floor and ceiling.

03

Keep the workings

Save a portable project and a moving plan. A separate checker can examine the route offline, without the site or its search engine.

Illustrative scene. Replace its assumed geometry with your measurements.
This is a plan for a rigid geometric model. It does not establish that people can safely carry the piece.How the model works, and where it stops ↗
WELCOME TO PASSAGE

Take the longer view.

Pick an example to see a complete space. The colored piece is exactly the rigid model being checked.

  1. Piece. Enter the outer measurements. Use the sofa shape when lower arms leave room to tilt.
  2. Space. Edit every wall and obstacle in the connected area. In plan view, drag an object to move it.
  3. Move. Set the start and finish, or add your own waypoints. Find a route and inspect its closest moment.

A checked route clears this supplied model by the requested buffer. If a search stops without a route, it has not proved the move impossible.

Your project is stored in this browser when storage is available. Save a copy before clearing browser data or moving devices. Only you decide when to share that file.

Keyboard: Ctrl / ⌘ Z undoes an edit. Space plays a checked route when you are not editing a field. All geometry can be edited with labeled controls.
THE WORKINGS, OPEN

A route you can check.

The independent checker uses conservative movement bounds to cover every moment between poses. The reported clearance is a lower bound, not the exact nearest-surface distance.

Its conclusion covers the boxes and measurements you supplied. It says nothing about omitted protrusions, flex, handling, weight or authenticity of measurements.

Download checker

With Node.js installed: node checker.mjs your-project.passage.json

Read the method and test evidence ↗
MAKE AN OPENING

Add a doorway.

Add two wall sections and a lintel across the room. Measure the clear opening with the door in its actual position.