DBK to RB Converter

Online DBK to RB converter — free, no installation needed

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Cross-Platform

The converter works on Windows, Mac, Linux, and mobile. Convert DBK to RB from whatever device you have handy.

Browser-Based

No software to download or install — convert DBK to RB directly in your browser, on any operating system.

Fast Conversion

Get your RB file quickly. Cloud infrastructure ensures DBK documents are processed and ready in seconds.

How to convert DBK to RB

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose rb or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your rb file right afterwards

About formats

DBK is a file extension associated with DocBook, a semantic markup language for technical documentation defined in XML (and originally SGML). DocBook was created around 1991 by HaL Computer Systems and O'Reilly & Associates, later maintained by the OASIS DocBook Technical Committee. The vocabulary provides over 400 element types designed specifically for books, articles, reference pages, and technical manuals — including structural elements (book, chapter, section, appendix), block elements (para, programlisting, table, figure), and inline elements (emphasis, filename, command, classname). Authors write content focusing on meaning rather than appearance, and separate stylesheets transform the DocBook source into output formats like HTML, PDF, EPUB, and man pages. One advantage is strict separation of content and presentation — a single DocBook source document can generate a printed book, a website, an ebook, and Unix man pages through different transformation pipelines, without any content duplication. The rich semantic vocabulary is another strength: because elements like <command>, <filename>, and <errorcode> carry precise meaning, toolchains can index, cross-reference, and validate technical content in ways that generic markup cannot. DocBook has been adopted by major open-source projects including the Linux kernel documentation, GNOME, KDE, and FreeBSD for their official documentation, and it remains the standard for single-source technical publishing.
Initial release: 1991
RB is the native ebook format of the Rocket eBook, one of the first commercially available dedicated e-reading devices, developed by NuvoMedia and released in October 1998. Founded by Martin Eberhard and Marc Tarpenning — who later co-founded Tesla Motors — NuvoMedia designed the Rocket eBook as a handheld device with a reflective LCD screen, capable of storing approximately ten books in its internal memory. The RB format packages HTML-based content along with embedded images, metadata, and a table of contents into a single binary container optimized for the device's limited hardware. Content was purchased and downloaded through NuvoMedia's RocketLibrarian desktop software. A notable advantage of the format was its early support for bookmarking, annotation, dictionary lookups, and adjustable font sizing — features now standard on modern e-readers but revolutionary in the late 1990s. The Rocket eBook demonstrated viable commercial demand for dedicated reading devices, paving the way for subsequent platforms from Sony, Amazon, and others. NuvoMedia was acquired by Gemstar-TV Guide International in 2000, which discontinued the device line in 2003. While RB files are largely a historical curiosity today, they can be converted to modern formats using ebook management tools, and the format remains significant as a pioneering chapter in the evolution of digital reading.
Developer: NuvoMedia
Initial release: 1998

Frequently Asked Questions

Why convert DBK to RB?

DocBook is a source format for authoring — converting to RB lets readers enjoy the content on e-readers and tablets.

How do I open a RB file?

Use Calibre, Kindle, Kobo, or any compatible eBook reader app to view RB files on your preferred device.

Is DBK to RB conversion free?

Yes — Convertio offers free DBK to RB conversion. Premium plans are available for heavier workloads and larger files.

Can I convert multiple DBK files to RB?

Yes — upload several DBK files at once and batch-convert them all to RB in a single session.

Does converting DBK to RB require registration?

No signup is needed. Open the converter page, upload your DBK file, and get your RB output right away.

Will my DocBook structure be kept in RB?

The converter maps DocBook elements to equivalent RB structures, preserving headings, lists, and paragraphs where possible.