Why is my build a single colour?

Because .stl stores no colour at all. The palette chosen in the preview panel is the only source of block choice — use it deliberately, or export from your 3D tool as .obj or .glb if you need the model's textures.

Do ASCII and binary .stl both work?

Yes. Both variants are parsed; binary files are smaller and load faster for dense meshes.

How detailed can the build be?

Raise the build size in the preview panel for more blocks and finer detail. Fine features smaller than one block get rounded away regardless of triangle count.

Can WorldEdit paste the result?

Yes. The output uses the Sponge schematic format read by WorldEdit 7 and newer, along with FAWE.

Convert .stl to .schem

Turn a CAD or 3D-printing model into a Minecraft build. Bloxelizer voxelizes your .stl in the browser and exports a WorldEdit-compatible .schem.

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 .schem formats

.stl is the stereolithography format used by CAD tools and 3D printing. It stores a raw triangle soup — nothing but geometry, with no materials, no textures, and no colour information in either the ASCII or binary variant. A Sponge .schem is gzipped NBT holding namespaced Minecraft block states for WorldEdit and FAWE. The conversion voxelizes those triangles into a block grid, and because the source carries no colour, the palette you pick decides entirely how the build looks.

How to convert .stl to .schem

Upload your .stl file in the converter below.

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

Leave .schem selected as the export format and download the schematic.

When to use this conversion

Use this route for models that came out of a CAD package, a 3D printing site, or a scanner — shapes where the geometry is the point and the colour is something you choose in Minecraft.

Compatibility notes

The .stl format carries no colour or material data, so the export uses the block palette you select rather than sampling the model. Pick a single-block palette for a clean silhouette or a textured palette for surface variation.