Is it free to convert between STP and IGES?

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

.stp

.iges

STP vs IGES

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

Format Overview

STP

STEP CAD File

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

.stpcad

IGES

Initial Graphics Exchange Specification

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

.igescad

STP vs IGES: Feature Comparison

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

When to Use STP vs IGES

Use STP when you need:

•Files in STEP CAD File format for maximum compatibility
•Industry-standard cad format support
•Wide software and platform compatibility

Use IGES when you need:

•Files in Initial Graphics Exchange Specification format for specific workflows
•Optimized cad format features
•Modern format advantages and smaller file sizes

Convert Between Them

STP IGES IGES STP

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Learn More About These Formats

STP Converter IGES Converter

Frequently Asked Questions

What is the difference between STP and IGES?

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

Can I convert STP to IGES for free?

Yes! Convert999 lets you convert STP to IGES 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, STP or IGES?

It depends on your use case. STP (STEP CAD File) may be better for certain workflows, while IGES (Initial Graphics Exchange Specification) 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.

STP Converter

Convert from STP

IGES Converter

Convert from IGES

File Tools

Compress, resize, merge

Convert to STP

All sources → STP

Convert to IGES

All sources → IGES

Format Statistics

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More Format Comparisons

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Feature

STP