# Free online 3D file viewer.

Canonical page: https://imageto3dprint.com/3d-file-viewer

Open a model, take a closer look, and see it from every side. STL, STEP, OBJ, 3MF, and GLB files stay in your browser.

Choose or drag in a supported 3D file up to 50 MB. The viewer reads it on your device and opens an interactive preview. Rotate the model and zoom in to inspect its shape before returning to your CAD app, editor, or slicer.

## Five formats, one workspace

Open triangle meshes, printable 3MF packages, GLB scenes, and STEP or STP CAD files in the same viewer.

## Inspect from every side

Rotate and zoom to examine the outline, internal openings, and visible surface details.

## Keep your file on your device

Viewing is free, requires no account, and does not upload your selected model to our server.

## Limitations

- The file limit is 50 MB. Very complex geometry may exceed your browser's available memory.
- A visual preview does not repair geometry or certify that a model is printable. Check manufacturing requirements in your CAD software or slicer.

## Frequently asked questions

### Which 3D file formats can I open?

The viewer accepts STL, STEP, STP, OBJ, 3MF, and GLB files. STEP and STP are two extensions for the same CAD exchange format. Every format-specific viewer page accepts all of these formats.

### Are my 3D files uploaded or stored?

No. Files selected in this viewer are read locally in your browser. They are not uploaded to ImageTo3DPrint or saved to your account.

### Is the online 3D viewer free?

Yes. You can open and inspect supported files up to 50 MB without payment or an account. Creating a new model from an image is a separate conversion tool.

## Related references

- [Pricing and credit costs](https://imageto3dprint.com/pricing.md)

- [AI content index](https://imageto3dprint.com/llms.txt)