ModelText-based

`model/x3d+xml`

X3D (XML)

Reference for model/x3d+xml, the MIME type for X3D 3D scene files in XML format, the successor to VRML.

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Expected extensions: .x3d

HTTP Content-Type Header

HTTP Header

Content-Type: model/x3d+xml; charset=utf-8

Associated File Extensions

.x3d

Quick Facts

MIME Type	model/x3d+xml
Category	Model
Type	Text-based (human-readable)
Extensions	.x3d

Common Usage

X3D is the ISO standard successor to VRML for describing 3D scenes. The XML encoding provides structured, validatable 3D scene descriptions.

Used in CAD visualization, scientific visualization, medical imaging, architectural walkthroughs, and educational simulations.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.x3d" type="model/x3d+xml">

<!-- Or for script/media elements -->
<script type="model/x3d+xml" src="file.x3d"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('model/x3d+xml');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'model/x3d+xml' });

nginx

# nginx.conf — add to types block or use default
types {
    model/x3d+xml  x3d;
}

# Or set for a specific location
location /api/ {
    default_type model/x3d+xml;
}