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3D Converter
3D 3D conversion for collaboration. reaConverter exports models to compatible formats, fast and offline.
How to Convert .3d Files in Bulk
1. Install reaConverter
2. Select 3D Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless 3D file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
3D Toolkit
Do more with your 3D models
Opening 3D usually takes the program that made it. reaConverter reads it directly and converts models to STL, GLB, STEP or images.
- Move models into STL for printing, STEP for CAD, or GLB and glTF for web viewers
- Script 3D conversions from the command line
- Render models to JPG, PNG or PDF at any angle, rotated on X, Y and Z
- Convert new models as they arrive with Watch Folders
User reviews
From those who tried it
Average User Rating:Last updated on July 29, 2026
Questions & Answers
3D files: Frequently Asked Questions
What are 3D files?
3D is a three-dimensional model file associated with Unreal Tournament, a popular first-person shooter game first launched in 1999 by Epic Games and Digital Extremes. 3D files can contain data about game characters, assets or animation, including number of polygons, vertices, movement etc. The format was mostly used with the game's first version of software framework: Unreal Engine 1.0.
Can reaConverter open 3D files?
reaConverter fully supports the 3D file format – open, edit, and export 3D files to any other popular file format with ease.
Do I need 3D or CAD software to convert 3D files?
No. reaConverter reads 3D files on its own, so the conversion needs no Blender, 3ds Max or Maya installation. It runs offline on your PC and handles whole folders at once, which suits model libraries, supplier deliveries and product ranges that have to reach people working in other software.
How do I change 3D to another format?
reaConverter is a user-friendly tool for converting 3D files. Once installed on your computer, it allows you to convert all your .3d files at once with just a few clicks. You can even convert 3D models directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert 3D online?
If you only want to convert a few 3D files, you are welcome to try our free online 3D converter.
How can I turn 3D files on my computer to another format?
The best way to convert 3D files on your PC is to get 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 3D.
How can I automate 3D files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert 3D files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line 3d converter.
What else can I do with reaConverter?
Trace images to vectorChange bit depthConvert whole-slide imagesResize photosConvert GIS files
What formats can I convert a 3D file to?
Discover More
Beyond 3D conversion
Convert .3d files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.
