Is it free to convert between IGES and STP?

Yes, Convert999 is 100% free. All conversions happen locally in your browser with no file size limits, no registration, and no watermarks.

.iges

.stp

IGES vs STP

Compare Initial Graphics Exchange Specification and STEP CAD File formats — understand the key differences and when to use each

Format Overview

IGES

Initial Graphics Exchange Specification

Initial Graphics Exchange Specification (.iges) is a cad file format.

.igescad

STP

STEP CAD File

STEP CAD File (.stp) is a cad file format.

.stpcad

IGES vs STP: Feature Comparison

Feature	IGES	STP
Full Name	Initial Graphics Exchange Specification	STEP CAD File
File Extension	.iges	.stp
Category	cad	cad
Free to Convert	✓ Yes	✓ Yes
Browser Support	✓ All Browsers	✓ All Browsers
Convert to Each Other	✓ Yes	✓ Yes

When to Use IGES vs STP

Use IGES when you need:

•Files in Initial Graphics Exchange Specification format for maximum compatibility
•Industry-standard cad format support
•Wide software and platform compatibility

Use STP when you need:

•Files in STEP CAD File format for specific workflows
•Optimized cad format features
•Modern format advantages and smaller file sizes

Convert Between Them

IGES STP STP IGES

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Frequently Asked Questions

What is the difference between IGES and STP?

IGES (Initial Graphics Exchange Specification) and STP (STEP CAD File) are both cad file formats. IGES files use the .iges extension while STP uses .stp. They differ in compression, quality, compatibility, and intended use cases.

Can I convert IGES to STP for free?

Yes! Convert999 lets you convert IGES to STP completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.

Which is better, IGES or STP?

It depends on your use case. IGES (Initial Graphics Exchange Specification) may be better for certain workflows, while STP (STEP CAD File) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.

Is it safe to convert files on Convert999?

Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

IGES Converter

Convert from IGES

STP Converter

Convert from STP

File Tools

Compress, resize, merge

Convert to IGES

All sources → IGES

Convert to STP

All sources → STP

Format Statistics

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