HDR → STP · Windows

Convert HDR to STP

Batch convert HDR to STP for easy sharing. reaConverter exports 3D models offline with control over output settings.

HDR to STP conversion is faster with the right tool. reaConverter handles everything from a few files to thousands in one batch. Processes files consistently every time, with full control over quality and output settings. Manufacturing teams use it to share models across departments.

DownloadHDR to STP ConverterConvert
HDR to STP
Online
.hdr.STP
4.8

Converting files since 2001

Runs offline — nothing uploaded

Read what our users say →

How to Convert Multiple .hdr Images 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. Need edits? Resize, rotate, or add watermarks during conversion.

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Install reaConverter

2. Load your HDR files

Launch reaConverter and drop in your HDR files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your HDR files into reaConverter

3. Select STP as output format

Pick STP as output format and choose the destination folder where you want to save new .stp files.

Select STP as output format

4. Start HDR to STP conversion

Then simply press the Convert button and your conversion will begin in no time!

Start Conversion

Once the conversion is complete, you can find your STP files in the destination folder you selected.

Step by step

How It Works

reaConverter offers the fastest, simplest solution for converting your HDR files into STP without GIS software - all images processed on your PC for maximum privacy and speed.

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Map Data Workflow

Turn GIS data into something anyone can open

A map saved as STP opens on any computer and any phone. reaConverter produces those from HDR in batch, entirely offline.

  • Render every file in a folder to STP with the same size and settings
  • Set DPI and output dimensions before the run, not afterwards
  • Pick up new data automatically with Watch Folders, or script the job from the command line

Everything runs on your PC, which matters for cadastral, utility and client data that should not pass through an upload form.

GIS data conversion

User reviews

What people say after the first batch

Average User Rating:4.8
Last updated on September 28, 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
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
An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness.
Elena Anderson
Elena Anderson
Happy User
Enable shell integration for lightning-fast file conversions directly from Windows Explorer.
R. Lewis
R. Lewis
Happy User

FAQ

HDR to STP Conversion

What are HDR files?

The HDR file format (.hdr) is a raster image format designed to store high dynamic range (HDR) data, capturing a wider range of brightness levels than standard formats like JPEG or PNG. Developed by Radiance, it uses a 32-bit floating-point representation per channel, enabling realistic lighting, shadows, and highlights.

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 HDR to STP?

Yes! reaConverter instantly converts .hdr 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 HDR images 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, GIS data among them. For HDR to STP it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document 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 HDR to STP online?

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

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

The best way to change HDRs 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 HDR to STP.

How can I automate HDR 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 HDR 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 hdr to stp converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert whole-slide imagesImage resizerConvert DICOM filesCrop photos

Related conversions

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

HDR to JPGHDR to PNGHDR to PDFDPX to STPECW to STPEXR to STP
All HDR conversionsAll STP conversions

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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.

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