STEP → STP · Windows

Convert STEP to STP

STEP to STP with consistent quality. reaConverter handles 3D files in batch, which helps when teams run different software.

Tired of converting STEP files one at a time? reaConverter processes entire folders to STP automatically. Handles large batches reliably without crashes or timeouts. 3D artists rely on it when clients need different file formats.

DownloadSTEP to STP ConverterConvert
STEP to STP
Online
.step.STP
4.8

Converting files since 2001

Runs offline — nothing uploaded

Read what our users say →

How to Convert Multiple .step Models to .stp?

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.

reaConverter logo
Install reaConverter

2. Load your STEP files

Add STEP files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

Load your STEP files into reaConverter

3. Select STP as output format

Select STP from the output format list and set your destination folder. You can also adjust quality and compression settings.

Select STP as output format

4. Start STEP to STP conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

Start Conversion

When finished, your new .stp files will be waiting in the destination folder.

Step by step

How It Works

reaConverter offers the fastest, simplest solution for converting your STEP files into STP without 3D or CAD software - all models processed on your PC for maximum privacy and speed.

Download reaConverter

Technical note

STEP to STP: what to expect from the conversion

Without further settings, a STEP assembly converts to a single STP. With Load STEP as separated shapes switched on, each part becomes its own file instead, so one assembly fills a folder with one STP per part.

3D Workflow

Move models between 3D formats

reaConverter converts STEP models to STP on your own PC, a folder at a time, with nothing uploaded.

  • Convert a whole model library to STP in one run
  • Set the level of detail from 1 to 7: finer triangles for smooth curves, fewer for small files
  • Keep unreleased designs and client models on your PC: nothing is uploaded
  • Split an assembly with Load STEP as separated shapes, one STP file per part
Supported 3D formats
3D model conversion

User reviews

What people say after the first batch

Average User Rating:4.8
Last updated on September 28, 2026
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.
John S.
Satisfied Customer
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.
Mark T.
Engineer
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.
Alex J.
CAD Designer
5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs.
J. Mitchell
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
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
Sarah Lane
Satisfied Customer

FAQ

STEP to STP Conversion

What are STEP files?

STEP file contains Standard for the Exchange of Product Data (ISO 10303). STEP format is a widely used by popular CAD software.

What are STP files?

STP is a file format used by popular CAD software. STP contains 3-dimensional data saved in the Standard for the Exchange of Product Data (STEP, ISO 10303) file format.

Can reaConverter convert STEP to STP?

Yes! reaConverter instantly converts .step to .stp 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 STEP models directly from Windows Explorer using the right-click menu — fast and convenient.

What is reaConverter used for?

reaConverter is a Windows converter for 800+ formats, 3D models among them. For STEP to STP it replaces the round trip through Blender, a CAD program or an upload form: add the files, pick the output format, and the whole batch converts offline. Engineers, 3D printing shops and product teams use it to move models between CAD, printing, web and documentation formats.

Why choose offline conversion with reaConverter?

reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.

Can I convert STEP to STP online?

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

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

The best way to change STEPs to STPs 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 STP.

How can I automate STEP to STP 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 STP using the command prompt?

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

What else can I do with reaConverter?

Separate STEP PartsConvert GIS filesConvert PDFAdd text on photosConvert RAW formatsConvert CAD formats

Related conversions

Other ways to convert STEP files, and other sources that convert to STP.

STP to STEPSTEP to DWGSTEP to DXFSTEP to PDFSKP to STPSTL to STPGLB to STP
All STEP conversionsAll STP conversions

Discover More

Beyond format conversion

Batch conversion, editing, and processing across 800+ formats, from RAW and HEIC to DICOM, DWG, and PDF. Everything runs locally, with no cloud and no upload limits.

DownloadreaConverterPurchase

Free trial · Windows 10/11 · v8.0.254 · Files never leave your computer

reaConverter software