OBJ to GLB Converter
Convert a Wavefront OBJ model into a compact GLB file for the web, AR and real-time 3D.
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About Converting OBJ to GLB
OBJ is a widely supported 3D geometry format that stores vertices, faces, texture coordinates and normals as plain text. It is a common interchange format between modelling, rendering and CAD applications, optionally pairing with an .mtl file for materials. When you need to move away from OBJ, the usual reason is simple: materials live in a separate .mtl file.
Converting your OBJ 3D model to GLB solves that. GLB is the binary form of glTF, the "JPEG of 3D" — a modern, compact format that packs geometry, materials, textures and scene data into one self-contained file. It is the standard for the web, AR/VR and real-time 3D viewers. In practice you gain single self-contained file with textures and materials and designed for web, ar and real-time engines. PrivConvert runs the whole OBJ-to-GLB conversion in server memory and deletes your file the instant the GLB is ready — nothing is stored, logged or reused.
When this conversion helps
- You need single self-contained file with textures and materials
- You need designed for web, AR and real-time engines
- You need compact and fast to load
- Sharing a OBJ 3D model with someone whose software expects GLB
Tips for best results
- Files up to 250 MB are supported, and you can batch-convert several OBJ files at once; each is processed privately and deleted immediately.
How to Convert OBJ to GLB Online
Turning a OBJ file into GLB is straightforward here — upload, convert, download. What you gain with GLB: single self-contained file with textures and materials.
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 OBJ to GLB 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 convert OBJ to GLB with PrivConvert?
PrivConvert turns your OBJ into GLB without ever storing, logging or sharing it. Here is what that looks like in practice:
Every conversion runs in its own locked-down process with no network access, so files can never leak or interfere with one another.
Your files are handled entirely by automated code. No staff, partner or AI model ever reads, stores or trains on your data.
Files are processed in volatile memory (RAM) and purged the instant your download is ready — nothing is ever written to disk, cached or backed up.
Every upload and download is protected with TLS 1.3, so your 3D model cannot be intercepted on the way to the server or back to you.
OBJ vs GLB - Format Comparison
| Feature | OBJ | GLB |
|---|---|---|
| File extension | .obj | .glb |
| Full name | Wavefront OBJ | Binary glTF |
| Introduced | 1990 | 2017 |
| 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.