OBJ to PLY converter
Drop an OBJ file and get a PLY back in seconds. OBJ is plain text, read almost everywhere, used mostly for older 3D software and CAD-adjacent tools. PLY is stores vertex colours and point clouds, the usual choice for 3D scans, point clouds and research tools like MeshLab and CloudCompare. The conversion runs entirely in your browser, so your file never leaves your device.
Choose a file to see its details here. Nothing is uploaded: everything runs in your browser.
How to use the obj to ply converter
- 1Choose your OBJ fileDrag it onto the panel or click to browse. It's read locally and never uploaded.
- 2Check the previewOrbit the model and check the triangle count, size and materials before converting.
- 3Download the PLYExport a PLY with one click. Downloads are included with every plan.
What carries over
- The PLY is written Z-up, which is what slicers and scan tools expect.
OBJ vs PLY
| OBJ | PLY | |
|---|---|---|
| Full name | Wavefront OBJ | Polygon File Format |
| Appearance | basic materials in a separate .mtl file | per-vertex colour |
| Animation | No | No |
| Units | unitless | unitless |
| Best for | older 3D software and CAD-adjacent tools | 3D scans, point clouds and research tools like MeshLab and CloudCompare |
Questions
- Is my OBJ file uploaded?
- No. The OBJ is parsed and the PLY is written by JavaScript in your browser tab. The file never reaches our servers.
- Will the PLY look the same as the OBJ?
- The geometry is identical. PLY holds per-vertex colour, so surface appearance changes. See the notes above for this exact pair.
- Is there a file size limit?
- Files up to 150 MB open, but very large models depend on your device's memory. Desktop browsers handle big files best.