ā–£ FitMyBoxFree 3D box packing simulator
Getting started: click and drag a block to move it (hold Shift to lift it). Press R / F / T to rotate 90° about Y / X / Z. Green āœ“ = fully inside, orange ā–² = sticking out, red āœ– = overlapping another object. Drag empty space to orbit, right-drag to pan.
Max-fit calculator

How many identical small boxes fit inside a bigger box? Enter both sizes to get the maximum count and a layout you can open in the 3D workspace.

About FitMyBox

FitMyBox is a free, lite 3D box packing simulator that runs right in your browser, with no sign-up. Set your carton size, add items, then drag and rotate them to check whether everything fits. Overlapping or overhanging items are highlighted, and the auto-arrange button searches for a tight layout.

Contact us

Found a bug, have an idea, or want a carton size added? Send us a message! Suggestions of any kind are welcome.

Export packing summary
Isometric preview