To convert OBJ to PLY, choose your OBJ 3D models above, adjust the options if needed and press "Convert to PLY". The PLY downloads instantly: free, with no sign-up, and the file never leaves your device.
About the OBJ to PLY Converter
Need to turn a OBJ file into PLY? This free converter changes OBJ 3D models into PLY in a few seconds, right in your browser. People usually convert because OBJ files are bulky text and easily lose their materials, while PLY gives you a PLY mesh with vertex colours. PLY files open in MeshLab, CloudCompare, Blender, Open3D and scanning apps.
Models are loaded and exported with three.js, the most widely used open-source 3D library for the web. Because everything happens on your own device, your 3D models are never uploaded, stored or seen by anyone else, which makes it safe for client prototypes and unreleased product designs.
What to expect: geometry, normals and UV coordinates are converted, and the model is not rescaled.
How to use the OBJ to PLY Converter
- Click "Choose files" or drag your OBJ 3D models onto the box. You can add several at once.
- No settings are needed.
- Press "Convert to PLY". The conversion runs on your device and shows its progress.
- Download each PLY file, or use "Download all (ZIP)" when you converted several.
- Open the result in MeshLab or CloudCompare to check it; your original OBJ is never changed.
Tips & benchmarks
- Vertex colours and normals are kept in the binary PLY when the source has them.
- STL and OBJ files have no units; most slicers assume millimetres, so check the size after importing.
- Keep the file name simple (letters, numbers and hyphens) if you plan to upload the PLY to a website or government portal.
Frequently asked questions
How do I convert OBJ to PLY?
Click "Choose files", select your OBJ 3D models, adjust the options if you want, and press "Convert to PLY". The PLY downloads immediately; with several files you can download everything as one ZIP.
Is this OBJ to PLY converter free and safe?
Yes. It is completely free, with no sign-up, no daily limit and no watermark. The conversion runs inside your browser, so your 3D models never leave your phone or computer and nothing is stored on News Appite's servers.
Are textures and materials kept?
Basic materials and vertex colours are carried over where both formats support them. External texture image files referenced by OBJ or glTF are not bundled unless they are embedded in the source.
Can I convert several OBJ files at once?
Yes. Add as many OBJ files as you like; they are converted one after another and you can download them individually or together as a ZIP.
Does it work on iPhone, Android and Mac?
Yes. The converter works in any modern browser, including Chrome, Safari, Edge and Firefox, on Android, iPhone, iPad, Windows, macOS and Linux. No app is needed.
What is the difference between OBJ and PLY?
OBJ (Wavefront OBJ) is a text-based 3D mesh best suited to exchanging meshes between Blender, Maya, 3ds Max, ZBrush and game engines. PLY (Polygon File Format (Stanford)) is a 3D scan and point-cloud format best suited to 3D scanning, photogrammetry, point clouds and research datasets.
Is there a file size limit?
There is no upload limit, because nothing is uploaded. The practical limit is your device's memory: files of a few hundred megabytes work on most computers, and phones handle smaller files comfortably.
How do I convert OBJ to PLY in Python?
Use trimesh: trimesh.load('input.obj').export('output.ply'). If you just need the file, this converter does it in the browser without writing any code.
OBJ ko PLY kaise kare?
Is page par "Choose files" dabaiye, apni OBJ file chuniye aur "Convert to PLY" par click kijiye. PLY file turant download ho jaati hai. Ye bilkul free hai, sign-up nahi chahiye, aur aapki file kisi server par upload nahi hoti.
OBJ vs PLY: format comparison
| OBJ | PLY | |
|---|---|---|
| Full name | Wavefront OBJ | Polygon File Format (Stanford) |
| Type | Text-based 3D mesh | 3D scan and point-cloud format |
| Created by | Wavefront Technologies, 1980s | Stanford University, 1994 |
| Compression | None (text) | Binary or ASCII |
| File extension | .obj | .ply |
| MIME type | model/obj | model/ply |
| Best for | Exchanging meshes between Blender, Maya, 3ds Max, ZBrush and game engines | 3D scanning, photogrammetry, point clouds and research datasets |
| Opens in | Blender, Maya, 3ds Max, Cinema 4D, Unity, Windows 3D Viewer | MeshLab, CloudCompare, Blender, Open3D and scanning apps |
What is a OBJ file?
OBJ is a simple text format for 3D geometry developed by Wavefront Technologies. Vertices, normals, texture coordinates and faces are written line by line, so virtually every 3D program can import it.
What is a PLY file?
PLY was developed at Stanford in the 1990s to store data from 3D scanners. It supports vertex colours and point clouds, which is why photogrammetry apps and LiDAR scanners often export PLY.
Need it the other way round? Use the PLY to OBJ Converter.
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