DOCX → FB2
Converting a novel from Word (.docx) to FictionBook (.fb2) is a routine step in practice — FB2 is a single XML file holding text, metadata and illustrations together, so nothing goes missing in transit. Fortunately Word and FictionBook are structurally close, so there is not much to lose. Below we explain in detail how Word becomes FictionBook and what to watch out for, and the page ends with a converter that does the job right in your browser — nothing is uploaded, the file never leaves your machine.
What is DOCX?
A .docx is really a ZIP of Office Open XML: the body text lives in word/document.xml, while styles, comments and tracked changes sit in their own parts. That preserves far more than Markdown can — pagination, headers and footers, footnotes, comments, revision history, precise type sizes and indents. The cost is structural complexity and software dependence: rendering differs between Word versions and third-party readers, and the content is not plain text, so you cannot inspect it directly. As a conversion source it carries the most information; as a final reading format its experience depends on the software that opens it. Read the DOCX format guide
| Extensions | .docx |
|---|---|
| Typical use | Authoring and layout source files; the most information-rich intermediate before converting to EPUB or TXT. |
What is FB2?
FB2 (FictionBook) is an open e-book format based on XML. Text, metadata and illustrations all live in a single file, with images embedded as Base64, so one file distributes completely and you never end up with the text present but the images missing. Its structure is simpler than EPUB and therefore easier for readers to implement, and it is most popular in Russian-speaking regions. The drawback is that it supports almost no complex CSS, so it suits text-plus-illustration books rather than titles that depend on fine layout. Read the FB2 format guide
| Extensions | .fb2 |
|---|---|
| Typical use | Russian-language e-books; single-file distribution where embedded illustrations and full metadata matter. |
How to convert DOCX to FB2
A .docx is a ZIP of Office Open XML with content in word/document.xml. Heading styles decide whether chapters survive: if the author used manually-bolded large text instead of Heading 1, the resulting EPUB has no table of contents.
FB2 requires structured XML body text, Base64-embedded images and metadata inside <description>. It supports almost no CSS, so it suits text-plus-illustration books rather than layout-heavy titles.
Chapter headings in the source are ordinary lines while the target demands a real table of contents. Converters try to match patterns such as "Chapter N"; when the match is poor the TOC is garbled or the book has a single chapter. Check that TOC entries match the actual chapter count.
Flattening a structured archive into one text file requires ordering chapters by the manifest (spine), not by ZIP entry name. This is the easiest mistake to make and the hardest to notice: the file opens fine, but the chapters are shuffled.
Convert DOCX to FB2
DOCX → FB2
The conversion runs entirely in your browser — your file is never uploaded.
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Tide Reader opens TXT and EPUB, detects chapters on import, lays the text out the way you like it, and syncs your reading position across Windows, macOS, iOS and Android. Drop the converted file in and start reading.
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