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COB Converter
COB 3D conversion for collaboration. reaConverter exports models to compatible formats, fast and offline.
How to Convert .cob Files in Bulk
1. Install reaConverter
2. Select COB Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless COB 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
Need COB models in other software, or as pictures? reaConverter converts them to STL, STEP or glTF and renders them to images, a whole folder at a time.
- Move models into STL for printing, STEP for CAD, or GLB and glTF for web viewers
- Keep unreleased designs and client models on your PC: nothing is uploaded
- Save a turning model as an animated GIF for a product page or catalogue
- Script 3D conversions from the command line
User reviews
From those who tried it
Average User Rating:Last updated on July 29, 2026
Questions & Answers
COB files: Frequently Asked Questions
What are COB files?
COB (Caligari Object) is a file format used for 3D modeling and animation. It was developed by Caligari Corporation, and is often used in game development and virtual reality applications. The format allows for the creation of complex 3D objects with textures, materials, and lighting effects. COB files can be exported to various other formats for use in different software applications.
Can reaConverter open COB files?
reaConverter fully supports the COB file format – open, edit, and export COB files to any other popular file format with ease.
Do I need 3D or CAD software to convert COB files?
No. reaConverter reads COB 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 COB to another format?
reaConverter is a user-friendly tool for converting COB files. Once installed on your computer, it allows you to convert all your .cob files at once with just a few clicks. You can even convert COB models directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert COB online?
If you only want to convert a few COB files, you are welcome to try our free online COB converter.
How can I turn COB files on my computer to another format?
The best way to convert COB 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 COB.
How can I automate COB 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 COB 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 cob converter.
What else can I do with reaConverter?
Convert PDFAdd watermark on imageConvert vector imagesChange image DPIConvert CAD formats
What formats can I convert a COB file to?
Discover More
Beyond COB conversion
Convert .cob 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.
