Free Online 3D Converter – No Sign-Up Required
Convert 3D model formats locally in a browser, with previews, GLB compression, and STL repair
About Free Online 3D Converter – No Sign-Up Required
Free Online 3D Converter is a browser-based tool for converting 3D model formats. Users can choose an existing format and a target format, preview the model before conversion, and learn what the target format can preserve. It currently supports available conversion directions between 3MF, STL, OBJ, GLB, and FBX, and also provides GLB compression and STL repair. Files are processed on the device and stay in the browser, with no registration or login required.
Best for
Best use cases
Convert 3D model formats in a browser
Preview a model before conversion
Compress a GLB file
Repair an STL file
Features
Local browser processing
Conversion runs on the device, so files stay in the current browser and are not uploaded or stored.
Preview before conversion
Each listed conversion starts with a preview and explains what the target format can preserve.
Multi-format conversion
Supports the available conversion directions between 3MF, STL, OBJ, GLB, and FBX.
GLB compression and STL repair
Besides format conversion, it provides GLB compression and STL repair.
Pros
- Files are processed in the local browser
- No login is required
- Files do not need to be uploaded or stored
Cons
- The page lists a 150 MB limit
- STL and OBJ cannot carry many scene features that GLB or FBX can include