TXT to RB Converter

Convert text to Rocket eBook RB format — free online

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Rocket eBook Format

TXT becomes an RB file compatible with the Rocket eBook ecosystem — preserving access to one of digital reading's earliest platforms.

Browser-Based

No specialized eBook software needed. Open Convertio, upload your TXT, and download the RB file — all from your web browser.

Secure Handling

Uploaded files are deleted after processing. RB outputs are removed within 24 hours — your text stays private.

How to convert TXT 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

TXT (Plain Text) is the most fundamental digital document format, storing unformatted text as a sequence of character codes with no embedded styling, layout instructions, or metadata beyond the characters themselves. The foundation of plain text computing traces to the ASCII standard published in 1963 by the American Standards Association (now ANSI), which defined 128 character codes including uppercase and lowercase Latin letters, digits, punctuation, and control characters. Modern plain text files typically use UTF-8 encoding, a variable-width Unicode scheme that encompasses virtually every writing system worldwide while maintaining backward compatibility with ASCII. Line endings vary by platform convention — LF on Unix/macOS, CR+LF on Windows — though most contemporary tools handle both transparently. One advantage is absolute universality — TXT files can be created, read, and edited on every computing device ever manufactured, from 1960s mainframes to modern smartphones, without any specialized software. The minimal overhead is another core strength: plain text carries zero formatting baggage, making TXT files ideal for configuration files, log output, data interchange, source code, scripts, and any context where content must be processed programmatically. Plain text serves as the substrate for structured formats like CSV, JSON, XML, YAML, and Markdown, and remains the input/output medium for virtually all command-line tools and programming environments. Despite decades of richer alternatives, TXT endures as the one truly universal document format.
Developer: ANSI
Initial release: 1963
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 TXT to RB?

RB is the Rocket eBook format — one of the earliest dedicated eBook formats. Converting preserves compatibility with that ecosystem.

What reads RB files?

The original Rocket eBook device is the primary reader. Calibre can open RB files on desktop for viewing and further conversion.

Is RB still used today?

RB is a legacy format with niche collector interest. Convertio supports it for users who maintain older eBook hardware or archives.

Is this conversion free?

TXT to RB conversion is free on Convertio. Premium accounts provide extended limits for specialized eBook workflows.

Will my text be preserved?

All text content transfers faithfully into the RB format. Line breaks and paragraph structure remain intact in the output.

Do I need special software?

No — the entire conversion runs online. You only need an RB-compatible reader or Calibre to open the finished file.

TXT to RB Quality Rating

4.6 (48 votes)
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