Is it free to convert between IGS and STP?

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

.igs

.stp

IGS vs STP

Compare IGES File and STEP CAD File formats — understand the key differences and when to use each

Format Overview

IGS

IGES File

IGES File (.igs) is a cad file format.

.igscad

STP

STEP CAD File

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

.stpcad

IGS vs STP: Feature Comparison

Feature	IGS	STP
Full Name	IGES File	STEP CAD File
File Extension	.igs	.stp
Category	cad	cad
Free to Convert	✓ Yes	✓ Yes
Browser Support	✓ All Browsers	✓ All Browsers
Convert to Each Other	✓ Yes	✓ Yes

When to Use IGS vs STP

Use IGS when you need:

•Files in IGES File 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

IGS STP STP IGS

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Learn More About These Formats

IGS Converter STP Converter

Frequently Asked Questions

What is the difference between IGS and STP?

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

Can I convert IGS to STP for free?

Yes! Convert999 lets you convert IGS 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, IGS or STP?

It depends on your use case. IGS (IGES File) 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.

IGS Converter

Convert from IGS

STP Converter

Convert from STP

File Tools

Compress, resize, merge

Convert to IGS

All sources → IGS

Convert to STP

All sources → STP

Format Statistics

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More Format Comparisons

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Feature

IGS

STP

Full Name