Convert OFF to STP

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

Looking to change OFF files to STP format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues. Handles 3D models independently with no CAD software required.

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed.

Install reaConverter

2. Load your OFF files

Start reaConverter and add your .off files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

3. Select STP as output format

Select STP from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

4. Start OFF to STP conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your STP output.

OFF to STP Converter

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

Download Free Trial

Do more with your files

Converting OFF 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 24, 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

Mechanical Engineer

"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"

DeShawn M. Thompson

Happy User

"I'm really impressed with this software - it converts files between formats incredibly fast!"

Lin Zhang

Happy User

"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."

Ava Thomas

Happy User

"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."

Roger Cook

Happy User

"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."

Jamal Bailey

Satisfied Customer

OFF to STP Conversion: FAQ

Can reaConverter convert OFF to STP?

Yes! reaConverter instantly converts .off 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 images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert OFF to STP online?

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

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

The best way to change OFFs 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 OFF to STP.

How can I automate OFF 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 OFF 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 off to stp converter for batch processing.

What else can I do with reaConverter?

Convert CAD formats Set picture bit depth Set file date Convert vector images Change image color space