Convert B3D to STP

B3D to STP with consistent quality. reaConverter handles 3D files in batch — perfect for collaboration across different software.

Tired of converting B3D 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.

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 B3D files

Add B3D 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.

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.

4. Start B3D to STP conversion

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

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

B3D to STP Converter

reaConverter offers the fastest, simplest solution for converting your B3D 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 B3D 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 13, 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

"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

"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.

IT Solutions Architect

"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"

Kenneth D. Carter

Satisfied Customer

B3D to STP Conversion: FAQ

Can reaConverter convert B3D to STP?

Yes! reaConverter instantly converts .b3d 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 B3D to STP online?

If you only need to convert a few B3D files to STP format, feel free to try our free online free online B3D to STP converter — perfect for small batches with no installation needed!

How can I turn B3D files into STP on my computer?

The best way to change B3Ds 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 B3D to STP.

How can I automate B3D 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 B3D 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 b3d to stp converter for batch processing.

What else can I do with reaConverter?

Copy EXIF data Convert RAW formats Convert CAD formats Set picture bit depth Set file date