3D Model Viewer

Drop a 3D model in GLB, GLTF, OBJ, FBX, STL, PLY, DAE, USDZ or 3MF format and the tool detects its type, loads it with three.js, and shows it in an interactive viewport with orbit, pan and zoom. You don't need Blender, a slicer or a CAD viewer just to check a file. It runs in your browser, so the model stays on your machine.

PrivateFreeWorks offline

Reviewed by Vincenzo Manto, Founder & Lead Developer · Last updated October 4, 2026

How it works

  1. 1

    Drop or select a 3D model file.

  2. 2

    The tool detects its format from the file extension and loads it with the matching three.js reader.

  3. 3

    The model appears in an interactive 3D viewport: drag to orbit, scroll to zoom.

  4. 4

    Check its bounding box and format, then load another file whenever you want.

One viewer for every common 3D format

Checking a downloaded 3D asset usually means opening Blender, a slicer or a CAD viewer just to see what's inside. This tool reads the file extension and loads the matching three.js reader automatically, so one drop zone covers web, game-engine, scanning and 3D-printing formats.

A live WebGL render, not a flat thumbnail

The model is lit, shaded and rendered live with three.js and WebGL, so you can inspect its geometry, proportions and surfaces from any angle before deciding what to do with it.

Frequently asked questions

Which formats can I view?

GLB, GLTF, OBJ, FBX, STL, PLY, DAE (Collada), USDZ and 3MF are all supported, detected automatically from the file extension.

Can I rotate and zoom the model?

Yes, the viewport uses orbit controls: drag to rotate, scroll or pinch to zoom, right-drag to pan.

Is my 3D model uploaded anywhere?

No, the file is read and rendered in your browser using three.js and WebGL; it never leaves your machine.

Can I convert the file while viewing it?

This tool is view-only. Use the matching converter (for example OBJ to GLB, or GLB to STL) to export the model into another format.

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