FB2 to TCR Converter

Convert FB2 to compressed TCR ebook — free online

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Compact Text Format

TCR compresses your FB2 ebook text efficiently — move content to legacy e-readers that use the TCR standard.

Privacy Protected

All FB2 uploads are deleted right after conversion. TCR files are removed from Convertio servers within 24 hours.

Speedy Conversion

FB2 to TCR conversion is lightweight and completes in seconds. Your compressed ebook file is ready almost instantly.

How to convert FB2 to TCR

1

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

2

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

3

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

About formats

FB2 (FictionBook) is an XML-based ebook format created by Dmitry Gribov in 2004, designed to provide a clean semantic description of a book's content independent of its visual presentation. Unlike page-layout formats, FB2 encodes structure — title, authors, chapters, annotations, genres, epigraphs, poems, footnotes, and binary attachments (typically cover images) — within a single well-formed XML document. This structural approach means reading applications have full control over rendering, allowing the same file to adapt perfectly to a small phone screen or a large e-ink reader. FB2 became enormously popular in Russia and Eastern Europe, serving as the dominant format on major Russian digital libraries and ebook distribution platforms. One significant advantage is metadata richness: the format's schema mandates detailed bibliographic information including author, translator, series position, publication date, and genre classification, making library management and discovery straightforward. The plain-text XML foundation is another strength — FB2 files are human-readable, easy to validate, and simple to transform using standard XML tools like XSLT. The format specification is freely available on GitHub, and a wide ecosystem of readers, editors, and converters supports it across all major platforms, from desktop applications like Calibre to dedicated e-readers with native FB2 rendering.
Developer: Dmitry Gribov
Initial release: 2004
TCR (Text Compression for Reader) is a compressed plain-text ebook format developed by Barry Childress in the early 1990s for the Psion Series 3 family of palmtop computers. The format was created for Childress's Reader3 application, a text file viewer that needed to fit large books into the Psion's extremely limited storage — typically 128 KB to 2 MB of available memory. TCR uses a dictionary-based compression scheme derived from the earlier ZVR format by Ian Giddings, replacing repeated byte sequences with single-byte tokens that reference a header dictionary. This straightforward approach achieves compression ratios of roughly 40-60% on typical English prose while requiring minimal CPU resources for decompression. The Psion Series 3 ran on a 3.84 MHz NEC V30 processor with no floating-point unit, so TCR's low computational overhead was essential for smooth page-by-page reading. A key advantage is remarkable storage efficiency for its simplicity — users could carry dozens of novels on removable SSD cards that held only a few hundred kilobytes. The format found a dedicated user community among Psion enthusiasts who built libraries of compressed literature for portable reading years before smartphones existed. Though the Psion platform faded from the market in the early 2000s, TCR files can still be opened and converted by modern ebook tools, and the format stands as an early example of purpose-built mobile reading technology from the pre-smartphone era.
Developer: Barry Childress
Initial release: 1993

Frequently Asked Questions

Why convert FB2 to TCR?

TCR is a compressed text format used by Psion and some Symbian readers. Converting FB2 to TCR lets you read on these older devices.

What readers support TCR?

TCR files work on Psion handhelds and some Symbian phone reading apps. Desktop tools like Calibre can also open TCR files.

Is text compressed in TCR?

Yes — TCR uses proprietary compression to minimize file size. This made it ideal for devices with very limited storage.

Is there a charge for this?

No. FB2 to TCR conversion on convertio.co is free — upload and convert without any costs or account requirements.

Will Unicode characters work?

TCR supports basic text encoding. Cyrillic and Latin characters from FB2 files are generally handled correctly.

FB2 to TCR Quality Rating

4.8 (11 votes)
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