Online 3D viewer
Drop in any 3D file — STL, OBJ, GLB, glTF, FBX or 3MF — and it opens right here. Rotate it, read its size and triangle count, watch its animation if it has one. No sign-up, no install, and nothing is uploaded; every file is read and rendered on your own device.
Detects the format from the file and loads it locally. For format-specific tips and checks, open the matching viewer below.
A viewer for every format
Each format has its own quirks — units, materials, animation, weight. These pages open the file and explain what to look for.
The 3D-printing standard — check scale, triangle count and holes before you slice.
The interchange mesh — inspect topology and poly count before it goes into Blender.
The web and AR format — see the materials and file size before you ship it.
GLB's readable JSON twin — preview the model and play its animation.
Rigged, animated assets — watch the animation play, count the bones.
The modern print format — color, multiple parts, the cleaner STL successor.
Why open a model in the browser
The usual way to look at a 3D file is to launch Blender, Fusion or a paid viewer and wait for it to load — a lot of ceremony just to check that a download is the right part, or that a client's export isn't broken. A browser viewer skips all of it: the file opens in a second, and because it renders with WebGL on your own machine, the model never travels to a server. That's the part that matters for anything unreleased or under NDA — there's no upload, so there's nothing to leak.
The trade-off is that a viewer views; it doesn't edit. When you need to change a model — repair a mesh, retopologize, re-texture — that's still a job for a full 3D app. To change its format, though, the free converters handle that here too, in the same browser tab.
3D viewer — FAQ
- What 3D file formats can I open here?
- STL, OBJ, PLY, GLB, glTF, FBX and 3MF, each with a viewer tuned to it. Not sure which you have? Drop the file on the box above and it routes to the right loader by extension.
- Do I need to install anything?
- No. Every viewer runs on WebGL in your browser — there's nothing to download, and it works on a phone, a Chromebook or a locked-down work laptop just as well as a desktop.
- Are my files uploaded to a server?
- No. The file is read with your browser's file API and rendered on your own device. It never leaves your machine, so confidential and client models stay private.
- Can it play animations?
- Yes — FBX and glTF/GLB files that carry animation play their first clip automatically, so you can confirm a walk cycle or a rig survived export. Mesh formats like STL and OBJ have no animation to play.
- Can I convert between these formats too?
- Yes — the free converters change one format into another (GLB to STL, OBJ to STL, and more), all in the browser. Use a viewer to check a model, then a converter to change it.
Need the model, not just a viewer?
Describe it or drop in a photo — Sculptor generates a fresh 3D model and exports it as GLB, STL or OBJ, ready to open right back here.
Generate a 3D model