My .gltf will not load — what is wrong?

It almost certainly references external .bin or texture files, which are not read alongside it. Re-export from your 3D tool as embedded glTF or as .glb, both of which travel as one file.

Where do I put the exported .nbt?

In your world's generated/minecraft/structures folder or a datapack's structures folder, then load it with a structure block.

What if the model is over 48 blocks per axis?

Reduce the build size, or pick the chunked NBT export, which splits the build into several origin-named .nbt files inside a zip.

Do I need mods or plugins?

No. Structure blocks and datapack structures are vanilla Java Edition features.

Convert .gltf to .nbt

Turn a glTF scene into a vanilla Minecraft structure. Bloxelizer parses the .gltf in your browser, voxelizes it at the size you choose, and exports a structure-block .nbt that works without mods.

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 .gltf and .nbt formats

.gltf is the JSON form of glTF — a scene of meshes, node transforms, and PBR materials whose buffers and textures are either embedded as data URIs or kept in separate .bin and image files. A structure-block .nbt is Minecraft Java Edition's own format: a block palette, positioned blocks, and a data version, placed by a structure block that reads at most 48 blocks per axis. The conversion voxelizes the mesh and writes the blocks into that vanilla structure layout.

How to convert .gltf to .nbt

Upload a self-contained .gltf file in the converter below.

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

Leave .nbt selected as the export format and download the structure.

When to use this conversion

Use this when your 3D tool exported JSON glTF rather than binary .glb and the destination is unmodded Java Edition — a datapack, a map, or custom world generation.

Compatibility notes

Use a self-contained .gltf with its buffers and textures embedded; a .gltf referencing external .bin or image files will not resolve them, so re-export as embedded glTF or .glb. Structure blocks also cap at 48 blocks per axis — use the chunked NBT export for anything larger.