Online 3D Viewer

Online 3D Viewer (https://3dviewer.net) is a free and open source web solution to visualize and explore 3D models in your browser. This repository contains the source code of the website and the library behind it.

Live website - Website documentation - Developer documentation - Discord server

Example

Check the live version!

Supported file formats

Import: 3dm, 3ds, 3mf, amf, bim, brep, dae, fbx, fcstd, gltf, ifc, iges, step, stl, obj, off, ply, wrl.
Export: 3dm, bim, gltf, obj, off, stl, ply.

External Libraries

Online 3D Viewer uses these wonderful libraries: three.js, pickr, fflate, draco, rhino3dm, web-ifc, occt-import-js.

STEP Tree Deletion Demo

This demo adds a local-only STEP editing flow without changing the existing download and export features.

Start the website

npm install
npm run build_website_dev
npx http-server .

Start the local STEP save service

pip install -r tools/step_service/requirements.txt
python tools/step_service/server.py

The service listens on http://127.0.0.1:17890.

Demo flow

Open a .stp or .step file.
Select an assembly node or leaf part in the tree.
Click Delete Selected.
Click Save STEP.
Reopen the downloaded file to verify the deleted subtree is gone.

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