Do local conversions upload my 3D file?
No. This 3D model converter parses selected STL, OBJ, PLY, GLB, and glTF files in your browser for local routes. Unselected external dependencies are rejected instead of fetched.
File converters
3D Converter
Free, private, and secure online 3D model conversion
- Community votes0
- DR by Ahrefs18 +14 (up) since last check
Ahrefs Domain Rating set in type 17 Oct 2026, reset 15 Oct 2026.
3D Converter metrics
| Metric | Value |
|---|---|
| Domain Rating | 18 +14 (up) since last check |
| Trust Flow | 27 no change since last check |
| Citation Flow | 33 no change since last check |
| Referring domains | 29 no change since last check |
| External backlinks | 5,841 no change since last check |
Ahrefs Domain Rating set in type 17 Oct 2026, reset 15 Oct 2026. Lead topic: Computers/Software/Operating Systems (27). Majestic set 14 Oct 2026, reset 14 Oct 2026. Link data typeset by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
3D Converter domain colophon
| Domain age | 2 months |
|---|---|
| Registered | |
| Expires | |
| Registrar | Spaceship, Inc. |
| DNSSEC | Not signed |
Browser-local 3D model converter for STL, OBJ, PLY, GLB and glTF formats with before-and-after validation and no file upload required.
The story so far
3D Converter is a browser-based tool for converting between 3D file formats including STL, OBJ, PLY, GLB, and glTF. It processes files locally on your device without uploading to external servers, supporting formats commonly used in 3D printing, modeling, and web delivery.
The tool includes a 3D viewer to inspect models before conversion and provides detailed before-and-after validation reports comparing dimensions, triangles, materials, textures, and other properties. It handles dependency-aware packages, allowing you to keep OBJ files with their MTL and texture references, or glTF files with their BIN and image files together.
A free plan offers unlimited browser-local conversions with 5 monthly cloud credits for CAD processing (STEP and IGES). The Pro plan at $9.9/month provides 100 cloud credits, STEP and IGES cloud conversion, and extended history retention.
Typeset features
- Browser-local processing for STL, OBJ, PLY, GLB, and glTF formats
- Before-and-after validation with quality reporting
- 3D viewer for model inspection before conversion
- Dependency-aware package handling for MTL and image files
- Format loss documentation showing what each conversion preserves
- Cloud conversion for STEP and IGES formats
- Support for up to 100 MB local files
- Conversion history retention on Pro plan
- Batch processing up to 20 files on Pro plan
- No account required for local conversions
Pricing
Pricing model: Freemium
Free plan: Unlimited browser-local mesh workflows, 5 cloud credits per month, 50 MB per cloud file. Pro plan: $9.9/month for 100 cloud credits per month, STEP and IGES cloud conversion, 100 MB effective cloud file limit.
Compare and explore
Questions and answers
Is this 3D converter free to use?
Yes. The browser-local conversion routes and 3D viewer are available without creating an account. The main local model file is limited to 100 MB; large dependency packages can still run into browser memory limits.
Which 3D format should I use for the web?
GLB is often the simplest delivery choice because it can package geometry, PBR materials, textures, hierarchy, and animation in one file. Choose glTF instead when readable JSON and separate resources make debugging easier.
Why does OBJ or glTF ask for additional files?
Those formats can reference resources outside the main file. An OBJ may point to an MTL file and texture images. A glTF may point to BIN buffers and images. Select the complete package with the original file names.
Why does a converted model have the wrong scale?
STL and OBJ workflows often rely on external unit conventions, while glTF defines meters. A value of 1 can mean one millimeter in a slicer and one meter in a web scene. Compare the bounding-box dimensions and choose an explicit unit.
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