Is it free to convert between IGS and DGN?

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

.igs

.dgn

IGS vs DGN

Compare IGES File and MicroStation Design formats — understand the key differences and when to use each

Format Overview

IGS

IGES File

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

.igscad

DGN

MicroStation Design

MicroStation Design (.dgn) is a cad file format.

.dgncad

IGS vs DGN: Feature Comparison

Feature	IGS	DGN
Full Name	IGES File	MicroStation Design
File Extension	.igs	.dgn
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 DGN

Use IGS when you need:

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

Use DGN when you need:

•Files in MicroStation Design format for specific workflows
•Optimized cad format features
•Modern format advantages and smaller file sizes

Convert Between Them

IGS DGN DGN IGS

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Learn More About These Formats

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Frequently Asked Questions

What is the difference between IGS and DGN?

IGS (IGES File) and DGN (MicroStation Design) are both cad file formats. IGS files use the .igs extension while DGN uses .dgn. They differ in compression, quality, compatibility, and intended use cases.

Can I convert IGS to DGN for free?

Yes! Convert999 lets you convert IGS to DGN 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 DGN?

It depends on your use case. IGS (IGES File) may be better for certain workflows, while DGN (MicroStation Design) 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

DGN Converter

Convert from DGN

File Tools

Compress, resize, merge

Convert to IGS

All sources → IGS

Convert to DGN

All sources → DGN

Format Statistics

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Feature

IGS

DGN

Full Name