PLY to OFF Converter
Convert a Stanford PLY 3D scan to OFF (Object File Format) for research, MeshLab and CGAL.
Complete the security check to begin
About Converting PLY to OFF
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. When you need to move away from PLY, the usual reason is simple: less common in 3d-printing workflows.
Converting your PLY 3D model to OFF solves that. 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. In practice you gain human-readable plain text and trivial to parse and generate. PrivConvert runs the whole PLY-to-OFF conversion in server memory and deletes your file the instant the OFF is ready — nothing is stored, logged or reused.
When this conversion helps
- You need human-readable plain text
- You need trivial to parse and generate
- You need standard in research and geometry-processing tools
- Sharing a PLY 3D model with someone whose software expects OFF
Tips for best results
- Files up to 250 MB are supported, and you can batch-convert several PLY files at once; each is processed privately and deleted immediately.
How to Convert PLY to OFF Online
Converting PLY files to OFF format is simple with PrivConvert. Our free online converter handles the entire process in your browser with no software installation required. Your files are processed securely in memory and never stored on our servers.
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 PLY to OFF 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.
Why Choose PrivConvert?
Unlike other online converters that upload your files to remote servers, store them for days, and may use them for AI training or sell your data, PrivConvert was built with privacy as the foundation. Here's what makes us different:
Files are processed in volatile memory (RAM) and immediately purged. Nothing is ever written to disk or backed up.
All uploads and downloads are encrypted with TLS 1.3. Your files cannot be intercepted in transit.
Use any tool instantly without signing up, providing an email, or creating a profile. No tracking cookies, no user profiling.
Compatible with Windows, macOS, Linux, iOS, and Android. No plugins or desktop software needed - just a modern web browser.
PLY vs OFF - Format Comparison
| Feature | PLY | OFF |
|---|---|---|
| File extension | .ply | .off |
| Full name | Polygon File Format | Object File Format |
| Introduced | 1994 | 1990s |
| Encoding | Binary | Text |
| 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
PrivConvert processes thousands of file conversions every day. Our commitment to privacy and security has made us the go-to choice for professionals, developers, and privacy-conscious users worldwide.