Convert STEP to IGES for Legacy CAD Systems
Export STEP solid geometry to IGES — the widely supported surface format for interoperability with older CAD/CAM systems and CNC controllers.
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Why convert STEP to IGES?
STEP and IGES serve different purposes in 3D workflows. Converting between them bridges compatibility gaps and enables specialized tooling.
IGES format offers specific advantages for certain pipelines — whether that's web delivery, game engine import, 3D printing, or CAD interoperability.
Our online converter handles the entire process server-side, so you don't need to install any desktop software or plugins.
How conversion works
- Upload your STEP file using the upload area above.
- Select IGES as the output format from the dropdown.
- Click "Convert" and wait for server-side processing to complete.
- Download your converted IGES file when ready.
Key benefits
- No software installation required — works entirely in your browser
- Server-side processing with industrial-grade conversion engines
- Secure: files are automatically deleted after processing
- Supports STEP files up to 50MB (100MB for registered users)
Frequently Asked Questions
Is the STEP to IGES conversion free?
Yes, our converter is free for files up to 50MB. Registered users get higher limits up to 100MB.
Does conversion preserve all data?
We preserve as much data as the target format supports. Mesh geometry, materials, and animations are retained where possible.
How long does conversion take?
Most 3D conversions complete within 10-30 seconds depending on file size and complexity. Maximum processing time is 2 minutes.