⚙️ STEP File Viewer
View and analyze ISO 10303-21 STEP CAD files online
How to View STEP Files Online
- Upload your STEP file (.step, .stp, or .p21 format)
- View automatic parsing of file header, entities, and metadata
- See header information including author, organization, and originating system
- Analyze data section summary: products, shapes, representations, geometric sets
- Browse entity types distribution to understand CAD model structure
- Download complete analysis as JSON for further processing
Why Use Our STEP Viewer?
📑 ISO 10303-21 Compliant
Parse industry-standard STEP CAD files accurately
📊 Complete Analysis
View entities, products, shapes, and geometric data
📄 Header Metadata
See author, organization, timestamp, and originating system
🎯 Entity Distribution
Understand model structure through entity type breakdown
🚀 No CAD Software
View STEP files without SolidWorks, CATIA, or NX
💾 Export Analysis
Download complete file analysis as JSON data
Frequently Asked Questions
What is a STEP file?
STEP (Standard for the Exchange of Product model data) is an ISO 10303-21 format for CAD data exchange between different software systems. It's widely used in manufacturing and engineering.
What file extensions does this support?
We support .step, .stp, and .p21 file extensions - all are STEP format variants.
Can I view STEP files without CAD software?
Yes! Our viewer analyzes STEP files online without needing expensive CAD software like SolidWorks, CATIA, Siemens NX, or Creo.
What information can I extract from STEP files?
You can see file metadata (author, organization, system), entity counts, products, shapes, representations, geometric sets, and full entity type distribution.
Are STEP files secure to upload?
Yes, files are processed securely on our servers and automatically deleted after analysis.
What's the file size limit?
You can upload STEP files up to 100MB in size.