Free online IGS to STP converter

How to convert igs to stp. Available igs to stp converters.

Convert IGS to STP online - free

.igs .stp

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How to convert igs to stp file

June 7, 2026
CAD formats
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Considering that both the IGES (.igs, .iges) and STEP (.stp, .step) format are common CAD formats used for exchange purposes, it should not be fairly easy to find CAD software or converter that can be used to convert one to another via igs to stp conversion.

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Understanding IGS and STP file formats

The IGS file format, also known as IGES (Initial Graphics Exchange Specification), is a widely used file format for exchanging 3D models and CAD data between different software applications. It is a neutral file format that allows the transfer of geometric data, annotations, and other information.

The STP file format, also known as STEP (Standard for the Exchange of Product Data), is another neutral file format used for the exchange of 3D CAD data. It is an ISO standard (ISO 10303) and is more advanced than IGS, supporting a wider range of data types and providing better interoperability between different CAD systems.

How to convert IGS to STP

Converting an IGS file to an STP file involves using software that can read the IGS format and export it as an STP file. This conversion is essential for ensuring compatibility with systems that prefer or require the STP format.

Best software for IGS to STP conversion

One of the best software options for converting IGS to STP is Autodesk Fusion 360. This software provides robust tools for importing and exporting various CAD file formats.

To convert an IGS file to an STP file using Autodesk Fusion 360, follow these steps:

Open Autodesk Fusion 360.
Go to File → Open and select your IGS file.
Once the file is open, go to File → Export.
Select STP as the export format.
Choose the destination folder and click Save.

Other software options include SolidWorks and FreeCAD, both of which support IGS to STP conversion.

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IGS vs STP: format comparison

How the IGS and STP formats compare on the properties that matter most for this conversion.

Comparison of the IGS and STP file formats
Property	.IGS Initial Graphics Exchange Specification	.STP STEP (Standard for the Exchange of Product model data)
Dimensions	3D	3D
Geometry	Both	Both
Layers	No	—
Materials	Limited	Limited
Plain-text readable	No	Yes
Operating system support	Wide	Wide
Typical file size	Medium	Medium
Open standard	Partly open	Yes
Introduced	—	1994
Developer	IGES/PDES organization (later managed by various standards bodies, including ANSI/ASME)	ISO

Open IGS file Open STP file

Suggested software and links: igs to stp converters

3D-Tool

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AutoCAD

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CAD Exchanger

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CATIA

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CrossManager

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EnSuite

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FreeCAD

An open source multiplatform 3D CAD/MCAD/CAx/CAE/PLM modeler

Solid Edge

A feature rich 3D CAD software by Siemens

SolidWorks

A 2D and 3D CAD construction software

TopSolid

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TurboCAD

A family of 2D/3D CAD software products for Windows

TurboCAD for Mac

A 2D/3D CAD software for OS X

ViaCAD Pro

A 2D, 3D modeling tool

Frequently asked questions

Is the IGS to STP converter free?

Yes, converting IGS to STP on 101convert.com is completely free. No registration, email address or installation is required.

How large can my IGS file be?

You can upload IGS files up to 500 MB and convert up to 5 files at once in a single batch.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert IGS to STP?

No. The IGS to STP conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid IGS file for this IGS to STP conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

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