CUB → STP · Windows

Convert CUB to STP

Batch convert CUB to STP on an ordinary Windows PC. No GIS licence, no command line, the same settings applied to every file.

CUB 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. Surveyors and planners use it to pass GIS data to colleagues who work in other software.

DownloadCUB to STP ConverterConvert
CUB to STP
Online
.cub.STP
4.8

Converting files since 2001

Runs offline — nothing uploaded

Read what our users say →

How to Convert Multiple .cub Files to .stp?

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.

reaConverter logo
Install reaConverter

2. Load your CUB files

Launch reaConverter and drop in your CUB 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 CUB files into reaConverter

3. Select STP as output format

Choose STP as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

Select STP as output format

4. Start CUB 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 CUB files into STP without GIS software - all files processed on your PC for maximum privacy and speed.

Download reaConverter

Technical note

What changes when you convert CUB to STP

Coordinates in CUB products usually belong to another world. These formats come from planetary science, with data from Mars, the Moon and the outer planets, and their georeferencing is defined on that body's radius and reference frame rather than on the Earth's. The picture in STP is unaffected, but an ordinary GIS needs a planetary coordinate system to place the data. CUB is made of pixels and STP is a geometry format, so the two describe shape in fundamentally different ways. Check the result before sending it downstream: what matters is whether the output contains usable geometry or a picture placed inside an STP container.

Map Data Workflow

Turn GIS data into something anyone can open

Not everyone who needs to see CUB data has GIS software. reaConverter renders it to STP for a report, an email or a slide, and handles a whole folder in one run.

  • 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 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
Michael Rodriguez
Mechanical Engineer
Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines.
Rebecca Turner
Rebecca Turner
Marketing Agency CEO
I was drowning in mismatched file formats until I found reaConverter. The one-click conversion and editing tools simplified everything, and the pricing is reasonable for small businesses. Now I spend less time troubleshooting and more time growing my brand!
Emily K.
Emily K.
E-commerce Entrepreneur
This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!
Kevin Harris
Kevin Harris
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
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
Jamal Bailey
Satisfied Customer

FAQ

CUB to STP Conversion

What are CUB files?

CUB is the cube file format of the Integrated Software for Imagers and Spectrometers (ISIS), developed by the USGS Astrogeology Science Center to process planetary imagery and spectral data returned by space missions. A file of this type stores a three-dimensional array of pixels defined by samples, lines, and bands, together with a text label written in Planetary Data System Version 3 (PDS3) keyword syntax. The label describes the dimensions, pixel type, byte order, target body, map projection, and instrument and acquisition details, and may be followed by additional objects such as history records, camera geometry tables, and polygon footprints. The label can be attached at the beginning of the file or stored in a separate file. The format is used for mosaics, map-projected images, and elevation models of the Moon, Mars, and other solar system bodies.

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 CUB to STP?

Yes! reaConverter instantly converts .cub 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.

What is reaConverter used for?

reaConverter is a Windows converter for 800+ formats, GIS data among them. For CUB 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 CUB to STP online?

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

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

The best way to change CUBs 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 CUB to STP.

How can I automate CUB 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 CUB 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 cub to stp converter for batch processing.

What else can I do with reaConverter?

Convert DICOM filesCrop photoConvert RAW photo formatsConvert vector filesChange image DPI

Related conversions

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

CUB to TIFCUB to PNGCUB to JPGBYN to STPCDF to STPCRD to STP
All CUB conversionsAll STP conversions

Discover More

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.

DownloadreaConverterPurchase

Free trial · Windows 10/11 · v8.0.250 · Files never leave your computer

reaConverter software