Sub-mesh Group Count
Separate mesh groups can be useful, or they can be leftover export clutter. Review the mesh count before treating the OBJ as a clean asset.
OBJ Static Mesh Tool
Online OBJ Viewer
Open and preview static OBJ files. Analyze mesh dimensions, face structures, vertex coordinates, and material assignment groupings.
Files are processed locally in your browser.
Waiting for a model
Model report
Inspection result
Mesh Diagnostics
What Parameters Does the OBJ Viewer Check?
OBJ is simple and widely supported, but it can still carry scale problems, dense geometry, or missing material references. Start by checking the mesh numbers before you convert or import it elsewhere.
Raw Vertex Statistics
Vertex and triangle counts tell you whether the file is lightweight enough for the target workflow, or whether it needs simplification first.
Coordinate System Dimensions
Bounds help catch scale mistakes early. This matters when OBJ exports move between CAD tools, Blender, engines, and slicers.
Format Specifications
Understanding the Wavefront OBJ and MTL Format
OBJ stores geometry as text: vertices, normals, UVs, and faces. Materials are usually described in a separate MTL file, and texture images remain separate assets. That split makes OBJ easy to edit, but it also means material paths can break when files move between folders or tools.
OBJ Debugging Guidelines
Fixing Geometry Issues inside the OBJ Viewer
Use the viewer to separate mesh issues from material path issues. If the shape, scale, and density look right, you can focus on reconnecting textures or converting to GLB.
MTL Reference Verification
Make sure the MTL file referenced inside the OBJ exists beside the model or in the expected relative folder.
Relative Texture Directory
Prefer relative texture paths such as `textures/map.png`. Absolute local paths often break after upload, sharing, or conversion.
UV Coordinates Export
If textures cannot align, reopen the model in your editor and confirm that UV coordinates were included during export.
OBJ Viewer FAQ
What is an OBJ viewer and does it load texture libraries?
An OBJ viewer opens Wavefront OBJ geometry and previews the static mesh in the browser. OBJ files often reference separate MTL and texture files, so this page is most useful for checking the mesh itself and confirming whether the export has the expected scale and structure.
Why is my model rendering plain grey in the OBJ viewer?
OBJ files do not contain texture images. If the model appears grey, the referenced MTL file or texture images are probably missing from the export context. Check the material file names and relative texture paths in your 3D editor.
Is my proprietary model data secure inside this OBJ viewer?
Yes. The OBJ file is parsed in your browser and is not uploaded to a 3d-ai.org server. Use the report locally, then continue editing or converting the asset in your own tools.
How do I convert a file checked in the OBJ viewer into a GLB file?
Import the OBJ and any related MTL/textures into Blender or another editor, verify the material paths, then export as GLB. Reopen the GLB afterward to check file size, texture payload, and material count.