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STP Converter

Batch convert STP models to STL, glTF or PDF. Set the level of detail and the view once, and every part in the folder comes out the same way.

STPConverter
4.8

Over 25 years of experience

Your files never leave your PC

Read what our users say →

How to Convert .stp Files in Bulk

1. Install reaConverter

Download reliable STP conversion software to convert multiple .stp files and folders in one go.

2. Select STP Files

Select STPs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load STP files

3. Start Conversion

Click Convert to start the bulk conversion of all selected STP files. The process will begin right away.
reaConverter - Start STP conversion

Step by step

See It in Action

For quick and effortless STP file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.

3D Toolkit

Do more with your 3D models

Suppliers send STP, but not everyone downstream runs CAD. reaConverter converts whole folders of parts to STL, glTF, images and drawings offline.

  • Split an assembly into one file per part with Load STEP as separated shapes
  • Convert parts to STL for printing, GLB for web viewers or IGES for other CAD systems
  • Keep unreleased designs and client models on your PC: nothing is uploaded
  • Save a turning model as an animated GIF for a product page or catalogue
3D model conversion

User reviews

From those who tried it

Average User Rating:
Last updated on July 27, 2026
reaConverter handles STP file conversion excellently. The batch processing feature is perfect for converting multiple CAD files at once, and the drag-and-drop interface makes it super easy to use. Quality is preserved well during conversion, and it supports plenty of output formats. Recommended for engineers and designers.
Michael Rodriguez
Michael Rodriguez
Mechanical Engineer
I deal with hundreds of images daily, and reaConverter has been a lifesaver. The Watch Folders feature lets me automate file conversions without lifting a finger. I set up a folder for incoming files and it automatically resizes, renames, and converts them into the formats I need. It's like having a personal assistant!
Sarah T.
Sarah T.
Graphic Designer
We use reaConverter in our department to handle image and document conversions for multiple teams. The Watch Folders function is brilliant — I configured different folders for different workflows, and now everything happens automatically in the background. No more manual conversions or missed files. Rock-solid performance!
James L.
James L.
IT Manager
We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works.
David R.
David R.
IT Solutions Architect
The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
Tried a few image tools before, but this one is by far the easiest. Drag, drop, convert — done in seconds. It saved me a ton of time when organizing my image folders.
Lisa K.
Lisa K.
Happy User

Questions & Answers

STP files: Frequently Asked Questions

Can reaConverter open STP files?

reaConverter fully supports the STP file format – open, edit, and export STP files to any other popular file format with ease.

reaConverter also lets you:

  • convert SketchUp SKP/SKB files to STP
Do I need 3D or CAD software to convert STP files?

No. reaConverter reads STP files on its own, so the conversion needs no SolidWorks, Fusion or other CAD seat. It runs offline on your PC and handles whole folders at once, which suits model libraries, supplier deliveries and product ranges that have to reach people working in other software.

How do I change STP to another format?

reaConverter is a user-friendly tool for converting STP files. Once installed on your computer, it allows you to convert all your .stp files at once with just a few clicks. You can even convert STP models directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert STP online?

If you only want to convert a few STP files, you are welcome to try our free online STP converter.

How can I turn STP files on my computer to another format?

The best way to convert STP files on your PC is to get 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 STP.

How can I automate STP files conversion?

reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.

Can I convert STP files using scripts or the command-line interface?

reaConverter provides full access to all its features from the Windows command-line shell, including the command-line stp converter.

What else can I do with reaConverter?

Split STEP AssembliesConvert RAW filesVectorize imagesChange bit depthChange format settingsCopy metadata (EXIF, IPTC)

What formats can I convert a STP file to?
What types of files can I convert to STP format?

Discover More

Beyond STP conversion

Convert .stp files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.

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

reaConverter software