Convert STL to STP

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

Got a folder full of STL files? reaConverter batch converts them to STP in minutes, not hours. Local processing means instant results, even with thousands of files. No CAD software required — handles 3D models independently.

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 STL files

Add your STL files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.

Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

3. Select STP as output format

Pick STP as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.

4. Start STL to STP conversion

Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

When the batch finishes, your STP files are ready in the destination folder you chose earlier.

STL to STP Converter

reaConverter offers the fastest, simplest solution for converting your STL 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 STL 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 16, 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

"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"

Richard E. Miller

Satisfied Customer

"Converts files in seconds! Finally a tool that's both fast and simple to use."

Wei Chen

Happy User

STL to STP Conversion: FAQ

Can reaConverter convert STL to STP?

Yes! reaConverter instantly converts .stl 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 STL to STP online?

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

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

The best way to change STLs 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 STL to STP.

How can I automate STL 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 STL 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 stl to stp converter for batch processing.

What else can I do with reaConverter?

Copy EXIF data Convert Gerber images Crop images Convert RAW files Convert CAD formats