Welcome to STP Viewer

What is STP Viewer?

STP Viewer is a professional online 3D model viewer specifically designed for engineers, designers, and manufacturing professionals. View complex engineering models directly in your browser without downloading heavy CAD software.

Instant Preview

View your 3D models immediately after upload

No Installation

Works directly in your web browser

Free to Use

Completely free with no registration required

Secure & Private

Your files are processed locally and never stored

Supported File Formats

We currently support the following engineering file formats:

.stp files (Standard for the Exchange of Product Data)
.step files (Alternative STEP file extension)

How to Use STP Viewer

Upload Your Model

Click the "Upload File" button and select your .stp or .step file from your computer. Files up to 100 MB are supported.

Wait for Loading

Your model will be processed and rendered. Most files load within seconds, though larger models may take longer.

Explore Your Model

Use your mouse or touch controls to interact with the 3D model and examine it from every angle.

Model Controls

Once your model loads, you can interact with it using these intuitive controls:

🔄 Rotate Model

Mouse: Click and drag to rotate the model in any direction
Touch: Use one finger to drag and rotate on mobile devices

🔍 Zoom In/Out

Mouse: Use scroll wheel to zoom in and out
Touch: Pinch with two fingers to zoom on mobile devices

📷 Take Screenshot

Click the "Screenshot" button to capture the current view
The image will be automatically downloaded to your device

🔄 Reset View

Click "Reset View" to return to the original model position and zoom level

System Requirements

Supported Browsers

Google Chrome (Recommended for best performance)
Microsoft Edge
Mozilla Firefox
Apple Safari

File Limitations

Maximum file size: 100 MB
Supported formats: .stp and .step only

Network Requirements

Broadband internet connection recommended
Download speed of at least 5 Mbps for optimal performance

Privacy First: Your files are processed entirely in your browser. We never store or access your engineering data.

Why Choose STP Viewer?

✅ Instant Access: No software downloads or installations
✅ Professional Quality: High-quality 3D rendering
✅ Cross-Platform: Works on desktop, tablet, and mobile
✅ Always Free: No hidden costs or subscription fees
✅ Secure: Your data stays on your device

Ready to get started? Upload your first STP file and experience the convenience of browser-based 3D model viewing!

STP Viewer - View 3D Engineering Models Online