Free Online FB2 Converter — Convert FictionBook Files
Convert FB2 (FictionBook 2.0) files to EPUB, MOBI, PDF, AZW3, and more. FB2 is widely used in Russia and Eastern Europe — convert to EPUB or PDF for global compatibility. Free, instant, no signup.
Max file size 10MB. Sign up for more.
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How to Convert FB2 Files Online — Free & Instant
Convert FictionBook (FB2) ebooks to EPUB, PDF, MOBI, or AZW3 — read Russian and Eastern European ebooks on any device worldwide.
Drag and drop FB2 (FictionBook 2.0) files. FB2 is an XML-based ebook format popular in Russia and Eastern Europe, with rich semantic markup for fiction.
Choose EPUB for most eReaders worldwide, MOBI or AZW3 for Kindle, or PDF for printing and universal compatibility. Text structure and formatting are preserved.
Download and sideload to your preferred eReader. Character encoding, chapter structure, and Cyrillic text are fully preserved during conversion.
Why Convert FB2 Files?
FB2 is mainly supported in Russia and Eastern Europe. Convert to EPUB or PDF to read on Kindle, Kobo, Apple Books, and eReaders worldwide.
Kindle doesn't support FB2. Convert FB2 to MOBI or AZW3 to read Russian and Eastern European literature on your Kindle.
FB2's XML structure handles Cyrillic encoding well. Our converter preserves all character encoding when converting to EPUB, PDF, or MOBI.
Convert FB2 to PDF to create printable versions of Russian-language ebooks with proper typography and page layout.
FB2 development has slowed. Convert to EPUB — the active, globally supported open standard — for better long-term compatibility.
Convert FB2 to EPUB or PDF to share Eastern European literature with international readers who may not have FB2-compatible software.
Convert FB2 ebooks directly in your browser — no desktop apps, no plugins. No watermarks added, formatting preserved, and files are deleted from our servers within 1 hour.
About the FB2 Format
FB2 (FictionBook 2.0) is an XML-based ebook format created in Russia that has become the dominant standard for digital books in Russia, Ukraine, and across Eastern Europe. Unlike formats that store visual presentation, FB2 uses semantic markup to describe the logical structure of a book — title pages, chapters, sections, epigraphs, poems, and citations are all encoded as distinct XML elements, making it exceptionally well-suited for fiction and literary works.
FB2 stores rich metadata including author biography, genre classification, series information, and cover images directly within the XML structure, making library management and cataloging straightforward. The format handles Cyrillic and Unicode text natively, ensuring proper rendering of Russian, Ukrainian, Bulgarian, and other scripts. FB2 is supported by popular reading apps like FBReader, CoolReader, and Moon+ Reader, particularly on Android. While less common outside Eastern Europe, FB2 files can be converted to EPUB, PDF, or MOBI for use on international eReaders and Kindle devices.
FB2 Converter FAQ
Quick answers about output formats, compatibility, quality trade-offs, and the best workflows for FB2 files.
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