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How to View GLB, OBJ and STL Files A Guide to Opening 3D Files Online and Offline

Hyper3D does not host a file-upload viewer. This page explains what each 3D format stores, which free tools open it, and what to look for in a mesh — plus where to see a model rendered here.

Formats explained
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Formats explained
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What a 3D preview actually shows you

A 3D file is not an image. It is a list of vertices, the triangles that join them, the normals that decide how light lands on each face, and a set of texture maps addressed by UV coordinates. Opening one in a viewer is the only reliable way to see whether the silhouette reads from every angle, whether the back of the object was reconstructed sensibly, and whether the texture lands where it should. A thumbnail cannot answer any of those questions.

To be clear about what this page is: there is no upload box here. If you already have a GLB, OBJ or STL on disk, the format notes below name the free tool that opens it — usually Blender, a slicer, or a browser component such as Google's model-viewer. If you want to see a mesh rendered on this site instead, generate one on the home page: the result panel there renders your model with WebGL, so you orbit the real geometry rather than a still, and you can check the silhouette, look for holes and inspect the texture seams before downloading.

What each format stores and where it opens

GLB

The single-file binary form of glTF 2.0. Geometry, PBR materials and textures all travel inside one file, which is why browsers, model-viewer and every modern engine load it without a sidecar. This is the format Hyper3D generates, and the one the result panel on the home page renders.

glTF

The JSON form of the same standard, with a .bin buffer and loose texture files beside it. Easier to inspect or patch by hand, but you have to keep the whole folder together for a viewer to resolve the references.

OBJ

Wavefront's plain-text geometry format. Vertices and faces live in the .obj file, materials in an optional .mtl beside it. Nearly every 3D application on earth reads it, but colour only survives if you carry the .mtl and its images too.

STL

Raw triangles and nothing else. No colour, no texture, no units. Slicers such as Cura, PrusaSlicer and Bambu Studio open it directly, and a viewer shows it in flat grey, which is exactly what a printer will produce.

FBX

Autodesk's interchange format, the one Unity and Unreal expect for anything with a rig. Viewing it usually means importing into Blender or an engine, since browser support is thin compared with glTF.

USDZ

Apple's zipped Universal Scene Description package. Tapping one on an iPhone or iPad opens AR Quick Look straight from Safari, Messages or Mail, with the model placed at real-world scale in the room.

How to see a 3D model without installing anything

Generate

Upload a photo on the home page. About a minute later the finished mesh appears in an orbitable WebGL panel, with no account and nothing to install.

Inspect

Drag to rotate and scroll to zoom. Check the silhouette from three or four angles and look along the surface for holes or stretched texture.

Download

Take the GLB when you are happy with it. If your pipeline expects OBJ, STL, FBX or USDZ, the tools pages walk you through converting that GLB in Blender or a slicer.

Questions fréquentes

Tout ce que l'on demande avant de transformer une photo en modèle 3D.

No. The generator's result panel runs on WebGL, which every current version of Chrome, Safari, Firefox and Edge supports out of the box. There is no plugin, no desktop application and no account. If your browser can play a video, it can render the mesh.

Transformez votre photo en modèle 3D

Gratuit, sans compte, et un GLB téléchargeable en moins d'une minute.