Convert STEP to IGS

Convert STEP 3D models to IGS without expensive CAD software. reaConverter handles batch conversion offline with consistent output.

Manual STEP to IGS conversion wastes hours. reaConverter automates the process — just add files and click Convert. Everything happens offline on your computer — no uploads, no cloud risks. Manufacturing teams use it to share models across departments.

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

Install reaConverter

2. Load your STEP files

Open reaConverter and add your STEP files. You can load individual files, entire folders, or even nested subfolders.

Drop your STEP files into the window or use File menu to browse and select folders.

3. Select IGS as output format

Choose IGS as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

4. Start STEP to IGS conversion

Hit Convert and let reaConverter do the work. The progress window shows status for each file in real time.

After conversion, find your IGS files in the output folder. Click 'Show converted files' to open it directly.

STEP to IGS Converter

reaConverter offers the fastest, simplest solution for converting your STEP files into IGS in seconds - all files processed on your PC for maximum privacy and speed.

Download Free Trial

Do more with your files

Converting STEP files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features

User Reviews

Average User Rating:
Last updated on January 25, 2026

"reaConverter has been a huge time-saver for our team. We regularly work with CAD models in STEP format, and converting them to images or other file types used to be a hassle. With reaConverter, the process is fast, accurate, and incredibly easy to set up. The batch conversion feature is especially useful when handling large projects. Highly recommended for anyone dealing with STEP files on a regular basis."

Mark T.

Engineer

"reaConverter made converting my STEP files to DXF a breeze! The batch processing feature saved me hours, handling hundreds of files flawlessly in minutes. Its offline mode ensured my CAD data stayed secure, and the intuitive interface was perfect for a non-techie like me. Highly recommend for anyone needing fast, reliable STEP file conversions!"

John S.

Satisfied Customer

"I needed to convert a batch of STEP files for a client presentation and ReaConverter made it simple. The interface is intuitive, letting me drag, drop, and choose my output format (I used STL) in seconds. The batch processing saved me hours of work. Highly recommended for its reliability and speed."

Alex J.

CAD Designer

"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."

J. Mitchell

Satisfied Customer

"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."

Malik T. Martin

Satisfied Customer

"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"

Sarah Lane

Satisfied Customer

STEP to IGS Conversion: FAQ

Can reaConverter convert STEP to IGS?

Yes! reaConverter instantly converts .step to .igs with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert STEP to IGS online?

If you only need to convert a few STEP files to IGS format, feel free to try our free online free online STEP to IGS converter — perfect for small batches with no installation needed!

How can I turn STEP files into IGS on my computer?

The best way to change STEPs to IGSs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from STEP to IGS.

How can I automate STEP to IGS files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert STEP files to IGS using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line step to igs converter for batch processing.

What else can I do with reaConverter?

Separate STEP Parts Copy metadata (EXIF, IPTC)Change format settings Change DPI Set manual file date Convert CAD formats