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ORB Converter
Fast ORB conversion for Windows. reaConverter processes large batches reliably, without crashes or timeouts.
How to Convert .orb Files in Bulk
1. Install reaConverter
2. Select ORB Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless ORB 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.
Extra Tools
Do more with your files
Converting ORB files for use in a larger project? 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.
User reviews
From those who tried it
Average User Rating:Last updated on July 30, 2026
Questions & Answers
ORB files: Frequently Asked Questions
What are ORB files?
The ORB file format is associated with the Original Book Reader, a freeware program for accessing e-books. The program is currently available for Windows and Mac platforms, but the ORB format is considered rare. Its latest version offers a limited number of basic features for opening and browsing digital books, as well as bookmarking and zooming.
Can reaConverter open ORB files?
reaConverter fully supports the ORB file format – open, edit, and export ORB files to any other popular file format with ease.
How do I change ORB to another format?
reaConverter is a user-friendly tool for converting ORB files. Once installed on your computer, it allows you to convert all your .orb files at once with just a few clicks. You can even convert ORB files directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert ORB online?
If you only want to convert a few ORB files, you are welcome to try our free online ORB converter.
How can I turn ORB files on my computer to another format?
The best way to convert ORB 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 ORB.
How can I automate ORB 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 ORB 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 orb converter.
What else can I do with reaConverter?
Convert GIS filesConvert Gerber filesConvert RGB to CMYKConvert PDF filesAdd text on photos
What formats can I convert a ORB file to?
Discover More
Beyond ORB conversion
Convert .orb 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.
