Free · in your browser

Stop shipping air.

Products into cartons. Cartons into containers. Optimized in 3D, exported as a plan your warehouse can follow.

Plan a container — free
85.0% utilization280 cartons4.1t / 28.2t

Live numbers — computed by the optimizer in your browser right now.

20' GP shipping container · 589×235×239 cm
3D view unavailableThis device/browser has WebGL disabled. The optimizer still works — utilization and stats are shown below.
Utilization: 85.0%Boxes: 280

Drag a box to move it · arrows nudge · R rotate · Del delete · ⌘Z undo · drag empty space to orbit · scroll to zoom. Moves snap to a 1cm grid and are blocked when boxes would overlap.

One tool for every level of the load

ProductsCartonsContainers · pallets · trucksWarehouse floorBeta
Flagship

Fill a container

Optimize mixed cartons in 3D, drag to adjust, export the plan.

Open

Size a carton

How many units fit per carton, and what each unit costs to ship.

Open

Pick a container size

Instant carton count & CBM for 20GP / 40GP / 40HQ.

Open Beta

Arrange the warehouse floor

Pallet rows, forklift aisles, and live dock-reachability checks.

Open

Check Amazon FBA fees

2025 size tiers and fulfilment fee estimates for your product.

Open

Cartons in, load plan out

If you can drag a box, you can plan a container.

Step 1 + 2

Type your cartons, hit Optimise

  • Sizes, weights, quantities — mark fragile or this-way-up
  • Real bin-packing fills the container, respecting weight & stacking limits
  • Then drag any carton in 3D — moves snap to grid and never overlap
The DimPack3D planner: carton inputs on the left, packed 3D container on the right
The exported PDF load plan: 3D snapshot, utilization stats and a carton-by-carton packing list
Step 3

Export a plan your warehouse can follow

  • PDF load plan — 3D snapshot, stats, load zones
  • CSV packing list — every carton with its exact position
  • The deliverable commercial tools charge $350–$5,000/yr for
Try it now

Or start from a real scenario

One click loads the full example — cartons, constraints, everything.

Fragile

Mixed retail import

20'GP · 3 carton sizes · fragile on top

Load example This-way-up

Flat-pack furniture

40'HQ · sofas & flat-packs kept this-way-up

Load example Unload order

Multi-stop delivery

20'GP · first stop loads nearest the door

Load example

Not a CBM toy — a load-planning engine

SpreadsheetDimPack3DCommercial
3D bin-packing✗✓✓
Weight & stack limits✗✓✓
Drag-edit in 3D✗✓some
PDF plan + packing list✗✓✓
Price / year$0$0$350–5,000+

Every placement must pass:

  • Full 3D collision check — no overlaps, ever
  • ≥60% base support — nothing floats
  • Stack loads propagate down and respect per-carton limits
  • Container payload enforced (28.2t / 26.7t / 26.5t)
  • Heavy cartons first — centre of gravity stays low, with live balance warning
100% in-browserData never leaves your deviceNo license seats

Questions, answered

Is it really free?+

Yes — planning and optimizing are free. Exporting PDF/CSV just asks for your email.

Do I need to install anything?+

No. It runs in your browser, desktop or tablet.

Where does my data go?+

Nowhere — everything computes on your device. Shipment data never leaves your browser.

Mixed carton sizes? Weight limits?+

Yes. Mixed sizes, payload limits, per-carton stacking limits, fragile cartons and unload order are all supported.

Your next container, planned in minutes

Free. In the browser. Nothing to install.

Open the Load Planner