How do I load the structure in Bedrock?

Place the file in the structures folder of your world or behaviour pack, then load it with a structure block or /structure load.

My model is too big for a structure block — now what?

Lower the build size until it fits 64×64×384, or export as .mcworld instead so the model ships as its own playable world.

Can I choose the block the model is built from?

Yes. Since .stl carries no colour, the palette selection in the preview panel is what determines the blocks used.

Is anything uploaded to a server?

No. The .stl is parsed and voxelized locally, and the .mcstructure is written in your browser.

Convert .stl to .mcstructure

Bring a CAD or printable model into Minecraft Bedrock. Bloxelizer voxelizes the .stl in your browser and exports a .mcstructure ready for the structure block.

Free & unlimited

Runs in your browser

3D & layer previews

Drop a Minecraft schematic

orBrowse

We'll detect the format, let you view your build layer by layer in 2D / 3D, and let you export it to any format.

.schem

.litematic

.bp

.mcstructure

.nbt

.schematic

.mcstructurezip

.mcworld

.zip(Java world)

.prefab.json

.json

.glb

.gltf

.obj

.mtl

.stl

.bbmodel

.geo.json

.png

.jpg

.jpeg

.webp

Or paste a URL

The .stl and .mcstructure formats

An .stl stores only triangles — the geometry-first format of CAD and 3D printing, with no colour or material channel. A .mcstructure is Bedrock Edition's structure format: little-endian NBT holding Bedrock block identifiers, a second layer for liquids, and the size a structure block reads on load. The conversion voxelizes the triangles into blocks, then maps those blocks to their Bedrock identifiers.

How to convert .stl to .mcstructure

Upload your .stl file in the converter below.

Set the build size and choose the block palette in the preview panel, then apply.

Select .mcstructure as the export format and download the structure.

When to use this conversion

Use this when the target is Bedrock and you want the shape placed with /structure load — in a map, a behaviour pack, or a world you are already building in.

Compatibility notes

The .stl format has no colour, so block choice comes entirely from the palette you select. Structure blocks cap at 64×64×384, so keep the build size within that if you want to load it in a single piece.