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Choose your .obj file and inspect the original mesh in 3D.
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Your model, in voxels
OBJ to QB Converter
Turn your OBJ 3D model into Qubicle Binary voxels. Choose the detail level and download a .qb file for your next project.
Upload your OBJ model
Up to 50 MB · Surface voxelization · Direct .qb download
Higher values add detail and increase processing time. Thin features may disappear at lower resolutions.
Convert OBJ meshes to Qubicle Binary
Wavefront OBJ stores polygon mesh geometry and may contain vertex colors. This converter accepts standalone OBJ files. External MTL files and textures are not loaded; export a self-contained GLB when you need textured colors.
Create a colored Qubicle Binary .qb file from your mesh. The converter writes one uncompressed RGBA voxel matrix for Qubicle and tools that import QB.
Choose QB for a Qubicle workflow or a game asset pipeline that accepts Qubicle Binary. Each occupied voxel keeps its sampled RGB color without a 255-color palette limit.
The download is a single uncompressed matrix. Separate mesh objects, animation, material settings, and transparency are not preserved. Check that your destination tool accepts the QB interchange format.
Set voxel detail
Pick a resolution between 8 and 64. Higher detail creates more occupied cells.
Download QB
Convert the mesh and save your .qb file for a compatible editor or pipeline.
Choose a voxel file format
Use VOX for MagicaVoxel, QB for Qubicle interchange, BINVOX for occupancy grids, or XYZRGB for colored coordinate data.
OBJ to QB FAQ
How do I convert OBJ to QB?
Upload a .obj mesh up to 50 MB, set a voxel resolution from 8 to 64, and select Convert to QB. When processing finishes, download the .qb file. Conversion runs on the backend without a separate desktop converter.
What is a QB file used for?
Choose QB for a Qubicle workflow or a game asset pipeline that accepts Qubicle Binary. Each occupied voxel keeps its sampled RGB color without a 255-color palette limit.
Will colors and textures be preserved?
The converter samples available vertex colors and embedded GLB textures. QB and XYZRGB retain sampled RGB values. Standalone OBJ uploads do not include external MTL files or texture images. Transparency is not preserved.
Does the converter create solid or surface voxels?
It voxelizes mesh surfaces rather than filling the interior. The output uses a Z-up voxel grid and does not retain the source model’s units, rigging, animation, or object hierarchy. Fine details depend on your resolution.
What model limits apply?
Upload a nonempty file up to 50 MB with no more than 250,000 mesh faces, 500,000 vertices, and 256 scene instances. Very complex models may reach the 90-second conversion limit. Simplify the mesh or lower the resolution if conversion fails.
Can I turn the same 3D object into a LEGO design?
Yes. Try the GLB to LEGO converter to create a LEGO-compatible model from a 3D object. Export an OBJ as a self-contained GLB first. You can also start a brick design from an image or a text prompt using BrickBuilder AI.