Free OBJ to PLY Converter
Lightning-fast OBJ to PLY conversion — 100% in your browser. Your files never leave your device. Free, no watermark, no sign-up.
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Supports GLB, GLTF, OBJ, STL, FBX, PLY
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OBJ vs PLY
See what transfers when converting between these two formats.
Converting OBJ to PLY will lose: Textures, Materials.
| Feature | OBJ | PLY |
|---|---|---|
| Geometry | ||
| Textures | ||
| Materials | ||
| Animation | ||
| Rigging |
Why convert OBJ to PLY?
Scan and photogrammetry pipelines
PLY is the native format for MeshLab, CloudCompare, Open3D, and RealityCapture. Convert OBJ assets before feeding them into scan-cleanup workflows.
Machine learning datasets
PLY is the default mesh format for many computer-vision frameworks (PyTorch3D, trimesh). Convert OBJ training data for ML pipelines.
Vertex-color workflows
PLY stores per-vertex color in a single compact file. Useful when you want baked colors without external texture images.
Tips for OBJ → PLY
Vertex colors approximate textures
PLY has no texture image support. Fast3D samples the OBJ diffuse color into per-vertex attributes — quality is limited by mesh density.
Binary PLY is smaller
PLY has ASCII and binary variants. Binary is roughly 4x smaller — Fast3D exports binary PLY by default.
Materials and UVs are dropped
PLY carries geometry, vertex colors, and normals. UV coordinates, PBR materials, and texture image references do not survive.
Inspect in MeshLab
MeshLab renders PLY vertex colors correctly. Blender and CloudCompare also work. Some older CAD tools read only the geometry portion.
Common issues when converting OBJ to PLY
Vertex colors look blocky
Fix
PLY vertex colors are limited by mesh density. Sparse OBJ meshes produce blocky colors. Increase mesh density or stay with OBJ if you need crisp textures.
Model appears uncolored in viewer
Fix
The viewer does not render PLY vertex colors. Try MeshLab or Blender — both render vertex colors. Some viewers only read PLY geometry.
PLY file rejected by slicer
Fix
Most slicers prefer STL over PLY. Convert to STL instead for 3D-printing workflows — PLY is rarely the right format for printing.