OFF to PLY Converter
Convert an OFF (Object File Format) mesh to a Stanford PLY file for scanning and point-cloud tools.
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About Converting OFF to PLY
OFF (Object File Format) is a simple, plain-text mesh format that lists a model’s vertices and faces. It is widely used in academia, geometry-processing research and tools such as MeshLab and CGAL, where a minimal, easy-to-parse mesh format is preferred. When you need to move away from OFF, the usual reason is simple: no colour, texture or material data.
Converting your OFF 3D model to PLY solves that. PLY (the Stanford Triangle Format) stores a polygon mesh and can carry per-vertex colour, normals and custom properties. It is the standard output of 3D scanners and photogrammetry pipelines, available in both ASCII and binary variants. In practice you gain per-vertex colour and custom attributes and standard for 3d scans and photogrammetry. PrivConvert runs the whole OFF-to-PLY conversion in server memory and deletes your file the instant the PLY is ready — nothing is stored, logged or reused.
When this conversion helps
- You need per-vertex colour and custom attributes
- You need standard for 3D scans and photogrammetry
- You need aSCII and compact binary variants
- Sharing a OFF 3D model with someone whose software expects PLY
Tips for best results
- Files up to 250 MB are supported, and you can batch-convert several OFF files at once; each is processed privately and deleted immediately.
How to Convert OFF to PLY Online
Turning a OFF file into PLY is straightforward here — upload, convert, download. What you gain with PLY: per-vertex colour and custom attributes.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from OFF to PLY starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
Private by design, not as an afterthought
Most online converters upload your files to a server, keep them for days, and may mine them for AI training or resale. PrivConvert was built the opposite way — around your privacy.
Convert instantly with no sign-up, no email and no profiling cookies. We never build a profile around you or the files you convert.
Runs in any modern browser on Windows, macOS, Linux, Android and iOS — no install, plugin or desktop software needed.
Each job runs in an isolated in-memory sandbox, so most conversions finish in seconds instead of waiting in a queue.
We never keep a copy. Once your PLY is delivered, both the original and the result are gone — there is nothing left to leak or misuse.
OFF vs PLY - Format Comparison
| Feature | OFF | PLY |
|---|---|---|
| File extension | .off | .ply |
| Full name | Object File Format | Polygon File Format |
| Introduced | 1990s | 1994 |
| Encoding | Text | Binary |
| Editable | No | No |
| Open standard | Yes | Yes |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
Trusted by thousands of users
Professionals reach for PrivConvert when the 3D model they are converting is sensitive and cannot be left sitting on someone else’s server.