Overview
3D Converter is a free, browser-based tool that converts common 3D model formats including STL, OBJ, PLY, GLB, and glTF. It emphasizes privacy by processing files locally in your browser, ensuring your models never leave your device. The tool provides a transparent conversion process with before-and-after validation, dependency-aware packaging, and honest format loss warnings.
Key Features
- Local Processing: All conversions for supported formats happen in your browser, keeping your files private and secure.
- Validation: After conversion, the output is parsed again to ensure it is valid and renderable. A detailed report compares dimensions, triangles, objects, materials, textures, units, and axis data.
- Dependency Management: For formats like OBJ and glTF that reference external files (MTL, BIN, images), you can upload the complete package to ensure correct conversion.
- Format Transparency: The tool clearly indicates what each format can and cannot carry, helping you choose the right output format.
- 3D Viewer: An integrated viewer lets you inspect models before conversion, with features like rotation, wireframe view, and mesh statistics.
- Free and No Sign-up: The local conversion routes and viewer are available without creating an account.
Use Cases
- 3D Printing: Convert STL files to other formats or prepare models for slicing.
- Web Development: Convert models to GLB or glTF for use in web applications.
- Game Development: Convert assets between formats for game engines.
- 3D Scanning: Process point cloud data from PLY files.
- Education: Learn about 3D file formats and conversion.
Supported Formats
- STL: Triangle geometry and facet normals.
- OBJ: Mesh geometry, UVs, normals, groups, and MTL references.
- PLY: Polygon or point data with optional vertex properties.
- GLB: Packaged glTF scene with binary resources.
- glTF: Readable scene JSON with BIN and image references.
Privacy and Security
All local conversions are performed in your browser. External dependencies are not fetched from the internet; if a file references missing resources, the conversion is rejected. For STEP and IGES formats, a separate cloud conversion path is used only after explicit user action.
Pricing
The local conversion routes and 3D viewer are free to use. Cloud CAD processing, saved history, and account storage are separate paid features.
