CBR to RB Converter

Batch convert cbr files to rb online. Change cbr to rb on Windows, Mac, iPhone and Android in 2 clicks.

Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.

How to convert CBR files to RB online?

Step-by-step instructions for converting cbr files to rb

Upload CBR-file

Click "Choose File" button to select a cbr file on your computer. CBR file size can be up to 100 Mb.

Convert CBR to RB

Click "Convert" button to start conversion.

Download your RB

When the conversion process is complete, you can download the RB file.


  • ❓ How can I convert CBR to RB?
    First you need to add file for conversion: drag and drop your CBR file or click the "Choose File" button. Then click the "Convert" button. When CBR to RB conversion is completed, you can download your RB file.
  • ⏱️ How long does it take to convert CBR to RB?
    eBook conversion is pretty fast. You can change CBR to RB in a few seconds.
  • 🛡️ Is it safe to convert CBR to RB on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including CBR to RB) is absolutely safe.
  • 💻 Can I convert CBR to RB on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our CBR to RB converter works online and does not require software installation.

Information about CBR and RB file formats

Full name Comic Book RARE File RB (Rocket Edition eBook File)
File extension .cbr .rb
MIME type application/x-cbr
Developed by Various Nuvo Media
Type of format eBook File
Description A .cbr file is a compressed file that allows a set of comic book images to be stored. These images can be ordered, and the format in which they are displayed can be altered to allow two images to be viewed side by side, in the same way as a double-page spread would occur. RB (Rocket Edition eBook File) – this format of the electronic book was used at the end of the 1990s widely spread Reader Rocket eBook. The Nuvo Media organization developed the format. You can still find editions of books in RB format on some online stores. RB (Rocket Edition eBook File) – is a digital box (container) with HTML content and Metadata files with expanded information. RB format is associated with Book Designer, RB2 Project, and GEB Librarian applications.
Technical details A .cbr file is just a .rar file with an amended file extension. What makes a .cbr file different is that it can be opened directly by comic book viewer applications without decompressing it first. The user can also associate the file extension with a Comic Book Viewer application. Typical image formats are allowed for a .cbr file such as JPEG, GIFF, TIFF, and PNG.
File conversion CBR conversion RB conversion
Associated programs CDisplay, ComicFlow, Perfect Viewer Calibre, Book Designer, RB2 Project, GEB Librarian
Wiki http://en.wikipedia.org/wiki/Comic_book_archive https://en.wikipedia.org/wiki/Rocket_eBook