Convert FB2 to TXT Online Free

Extract the full text content from FictionBook (FB2) ebooks into a plain text file. Powered by Calibre for accurate text extraction from the XML-based ebook format popular in Eastern Europe.

Quick Answer

ChangeThisFile extracts the full text content from your FictionBook (FB2) ebook into a plain .txt file using Calibre on our secure servers. FB2 is an XML-based ebook format widely used in Russia and Eastern Europe. Converting to plain text gives you universally readable content in any text editor. Encrypted transfer with automatic file deletion after processing, completely free with no signup required.

Free No signup required Encrypted transfer · Auto-deleted Under 2 minutes Updated March 2026

Convert FictionBook to Plain Text

Drop your FictionBook file here to convert it instantly

Drag & drop your .fb2 file here, or click to browse

Convert to Plain Text instantly

FictionBook vs Plain Text: Format Comparison

Key differences between the two formats

FeatureFB2TXT
FormatFictionBook 2.0 (XML-based)Plain Text
Content typeStructured ebook with semantic markupUnformatted plain text
StructureXML tags for body, sections, titles, epigraphs, poemsFlat text with line breaks
MetadataRich: author, genre, series, annotation, publisherNo metadata support
ImagesBase64-encoded inline imagesNo image support
File sizeSmall to moderate (XML text + encoded images)Very small (text only)
CompatibilityFBReader, CoolReader, CalibreOpens on every device and OS

When to Convert

Common scenarios where this conversion is useful

Read on any device

Convert FB2 ebooks to plain text when your device or reading app does not support the FictionBook format.

Text processing and translation

Extract text from Russian or Eastern European FB2 ebooks for machine translation, language learning, or text analysis.

Content migration

Extract text from FB2 files as a first step in reformatting content for other ebook platforms or publishing workflows.

Archival and backup

Create a plain text backup of FB2 ebook content in a format that will remain readable indefinitely, independent of any particular software.

Who Uses This Conversion

Tailored guidance for different workflows

Authors

  • Extract text from an FB2 version of your published work for reuse in a different format or language edition
  • Convert FB2 files from Russian publishers to plain text for review, translation, or rights management
Verify that poem formatting and epigraph text is correctly preserved as line-broken plain text
Check that the full text is present, including forewords, afterwords, and appendices that may be in separate FB2 sections

Publishers

  • Extract text from FB2 catalog titles for migration to EPUB or other international ebook standards
  • Convert FB2 files to plain text for content analysis, keyword extraction, or automated cataloging
Validate Cyrillic character integrity in the output, especially for mixed-language texts with Latin and Cyrillic
Cross-reference the extracted text against the FB2 metadata to ensure no sections were omitted during conversion

Readers

  • Convert FB2 ebooks to plain text for reading on Western e-readers or devices that lack FB2 support
  • Extract text from FB2 files for use with translation tools when reading books in a foreign language
After conversion, check the beginning and end of the file to confirm the full book was extracted
If the original FB2 is in Russian, use a UTF-8 compatible text editor to view the output correctly

How to Convert FictionBook to Plain Text

  1. 1

    Upload your FB2 file

    Drag and drop your .fb2 file onto the converter, or click to browse. Files up to 50 MB are supported for free.

  2. 2

    Server-side conversion via Calibre

    Your file is securely uploaded and converted on our servers using Calibre. Calibre parses the FB2 XML structure, extracting text from body sections, titles, and epigraphs while stripping XML tags and base64-encoded images.

  3. 3

    Download the result

    Once conversion is complete, click Download to save your .txt file. The uploaded file is automatically deleted from our servers.

Frequently Asked Questions

Yes, completely free. Convert FB2 to plain text with no cost, no signup, and no watermarks.

No. Files are automatically deleted immediately after conversion. Nothing is stored or retained.

Yes. Files are transferred over encrypted HTTPS connections. Your data is protected in transit.

FictionBook (FB2) is an XML-based ebook format designed for fiction. It uses semantic tags for structure (chapters, sections, epigraphs, poems) and stores images as base64-encoded data within the XML. It is particularly popular in Russia and Eastern European countries.

The conversion uses Calibre, the leading open-source ebook management tool. Calibre fully supports FB2's XML structure and can reliably extract all text content including nested sections and special elements.

Yes. FB2's special structural elements like poems, epigraphs, and citations are extracted as text. Line breaks within poems are preserved in the plain text output.

The output uses UTF-8 encoding, which fully supports Cyrillic, Latin, and all Unicode characters. Russian, Ukrainian, Bulgarian, and other language content is preserved accurately.

Images (stored as base64 in FB2) are removed. The annotation (book description) text is included, but binary image data is stripped.

Yes. Calibre converts FB2's section/title hierarchy into plain text with clear chapter separators, maintaining the book's organizational structure.

Not directly with ChangeThisFile, but you can convert TXT to EPUB or MOBI. For FB2 specifically, you would need to use Calibre desktop or an FB2 editor to recreate the XML structure.

Currently, files are converted one at a time. Upload your next file after downloading the result.

Files up to 50 MB are supported for free conversion.

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