How do I load the .mcstructure in game?

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

What if the model is bigger than a structure block can load?

Lower the build size in the preview panel until it fits the 64×64×384 limit, or export as .mcworld instead so the build ships as its own world.

Are the model's textures used to pick blocks?

Yes, when the .mtl and its images are selected with the .obj. Each sampled surface colour is matched to the closest block in the palette.

Can I still use this on Bedrock Realms?

Yes, if you can add the structure to the world or pack. Otherwise, exporting the build as a .mcworld and uploading it is usually simpler.

Convert .obj to .mcstructure

Get a 3D model into Minecraft Bedrock. Bloxelizer voxelizes your .obj in the browser, maps the blocks to Bedrock, and exports a .mcstructure 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 .obj and .mcstructure formats

An .obj holds mesh geometry in plain text with materials in a separate .mtl. A .mcstructure is Bedrock Edition's structure format: little-endian NBT with Bedrock block identifiers, a second layer for waterlogging, and a size the structure block reads when loading. The converter voxelizes the mesh into blocks and then maps each one to its closest Bedrock identifier while packing the .mcstructure layers.

How to convert .obj to .mcstructure

Select your .obj file, plus its .mtl and textures if it has them, in the converter below.

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

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

When to use this conversion

Use this when the destination is Bedrock — a Realm, a phone or console world, or a behaviour pack — and you want the model placed with /structure load rather than a Java editor.

Compatibility notes

Voxelization picks blocks from the Java-side palette and the export then maps them to Bedrock, so edition-exclusive blocks fall back to the nearest Bedrock match. Structure blocks also cap at 64×64×384, so keep the build size within that if you plan to load it in one piece.