Online RB Converter
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What is a RB file?
RB (RocketBook) is a legacy eBook format created for the Rocket eBook reader, one of the first commercially available digital reading devices in the late 1990s. It includes text, formatting, and sometimes DRM protection.
Though no longer in use, RB files can still be opened and converted using Calibre or specific tools for vintage eBooks.
How to open RB files
RB files can be opened using Calibre or older eBook software like eBookWise Librarian. Due to their legacy status, modern compatibility is limited.
Use AnyConv to convert RB files to EPUB or PDF to preserve and access older eBook content more easily.
Key facts about RB
- Full name: Rocket eBook File
- Extension: .rb
- MIME type: application/x-rb
- Developed by: NuvoMedia
- Initial release: 1998
Useful links and resources
Convert from RB
Quickly turn your RB files into any format you need
Convert to RB
Easily turn your files into RB format
❓ Frequently Asked Questions
Answers to common questions about RB
- Do I need to install software to convert RB files?No, you don’t need to install anything. AnyConv converts RB files directly in your browser — no downloads required.
- Can I use RB converter on my phone or tablet?Yes, you can convert RB files on any device — including phones and tablets. AnyConv works perfectly on mobile.
- Is it safe to convert RB files with AnyConv?Yes, converting RB files with AnyConv is secure. All files are automatically deleted after conversion and never shared.
- Can I convert multiple RB files at once?Yes, our converter supports batch processing. You can upload several RB files and convert them all at once.