How to convert OBJ to PLY
- Add your .OBJ file - drop it in the box above or click to browse.
- Convert it to .PLY in a few seconds.
- Download your new .PLY file.
What to expect
- UV-mapped textures do not carry over: OBJ stores color via
.mtland image files, while PLY stores color per vertex. Bake textures to vertex colors in Blender or MeshLab before exporting if you need color in the PLY. - Choose binary PLY over ASCII when exporting - binary is 3-5x smaller for the same mesh and loads faster in most tools.
- Keep the
.mtlfile and texture images in the same folder as the.objwhen opening it, or the mesh loads without color and baking will not be possible.
Frequently asked questions
Will the OBJ geometry change during conversion?
No - vertex positions, face connectivity, and normals transfer exactly. PLY is a lossless mesh container; only UV-mapped texture color may be lost.
Why does my PLY have no color after converting?
Color in an OBJ lives in the
.mtl file and texture images, not in the geometry itself. PLY has no UV texture slot, so you need to bake the texture to vertex colors in Blender or MeshLab before exporting to preserve color.Is PLY better than OBJ for 3D scan data?
Yes - 3D scanners capture one color value per point, which maps directly to PLY's per-vertex color model. OBJ requires a UV layout and a texture image to carry color, which is unnecessary overhead for raw scan data.
Can I batch-convert multiple OBJ files to PLY?
MeshLab's command-line mode and
meshconv both support batch processing via shell scripts, making them the practical choice for converting many files at once.Programs that convert OBJ: Blender · PolyTrans|CAD+DCC · 3D Builder · 3Data Expert · Autoconverter · meshconv · TransMagic · Afanche 3D Viewer for Mac
