ModelText-based

`model/step`

STEP (CAD)

Reference for model/step, the MIME type for STEP CAD files, the ISO standard for exchanging 3D CAD data.

MIME Type Detector

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Expected extensions: .step, .stp

HTTP Content-Type Header

HTTP Header

Content-Type: model/step; charset=utf-8

Associated File Extensions

.step.stp

Quick Facts

MIME Type	model/step
Category	Model
Type	Text-based (human-readable)
Extensions	.step, .stp

Common Usage

STEP (Standard for the Exchange of Product Model Data) is the ISO 10303 standard for exchanging 3D CAD data between different software systems. It preserves precise geometry, assemblies, and manufacturing data.

Used across automotive, aerospace, and mechanical engineering.

Code Examples

HTML

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

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

Node.js

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

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

nginx

# nginx.conf — add to types block or use default
types {
    model/step  step stp;
}

# Or set for a specific location
location /api/ {
    default_type model/step;
}