OBJ Viewer
Open an OBJ model, rotate it and inspect its geometry. Viewing local files happens in your browser. Switch to Optimize, Convert or Animations without importing the model again.
See what is actually in the file.
The scene graph, every material and texture, their estimated RGBA8 texture memory, the draw calls, the skeleton and every clip. Draco, Meshopt and KTX2 files open too, and nothing is uploaded.
Exported by Khronos glTF Blender I/O v4.3
Open your model
Drop the .obj file, its .mtl material file and the referenced texture images together, or put them in one ZIP. Keep the filenames and folder structure used by the material references.
What to check
OBJ provides geometry; MTL and image files supply its surface appearance. A model that opens without textures may simply be missing its companion files.
OBJ does not carry skeletal animation. Inspect the mesh and materials first, then use rigging if you need an animated character. Converting the file cannot recreate missing textures.
Keep working on the same model
Inspect first, then use the tool buttons above to optimize geometry, check export readiness or work with animations. The current model stays open. AI operations may require an account and credits; opening and inspecting the file is free.