FB2 → EPUB
Convert FictionBook to EPUB – server-side
Why FB2 → EPUB?
FB2 is only supported by a few e-readers. EPUB is the universal e-book standard for Kobo, Tolino, PocketBook, and all non-Kindle readers. Convert for maximum compatibility.
Frequently Asked Questions
What is an FB2 file?
FB2 (FictionBook 2.0) is an XML-based e-book format popular mainly in Russian-speaking regions. It's not supported by all readers.
Are my files safe?
Yes. The conversion happens on our server, but your file is deleted immediately after processing. We store no data.
Can I convert multiple files at once?
Yes, you can upload and convert as many FB2 files as you want at the same time.
Is the conversion free?
Yes, wandlio.de is completely free. No registration, no limits, no ads.
About EPUB
EPUB (Electronic Publication) was standardized in 2007 by the International Digital Publishing Forum and published as an ISO standard in version 3.3. It is the open standard format for e-books and is based on HTML, CSS, and ZIP packaging, enabling dynamic text reflow based on screen size and reading device. EPUB supports reflow layout, embedded fonts, images, audio, video, and JavaScript interactivity for enhanced e-books. The format is supported by most e-readers except Amazon Kindle. Apple Books, Kobo, Google Play Books, and Thalia use EPUB as their standard format. Amazon automatically converts uploaded EPUBs to its proprietary AZW3 or KFX formats. EPUB 3 added support for media overlays synchronizing text and audio, and MathML for mathematical formulas. EPUB files can be validated for standards compliance using the EPUBCheck tool. For self-publishers, EPUB is the most important format alongside PDF since it provides the broadest access to e-reader platforms.
About FB2
FB2 (FictionBook 2) was developed in 2004 by Dmitry Gribov and Aleksey Gricenko as an XML-based e-book format and is particularly prevalent in the Russian-speaking world and Eastern Europe. Unlike EPUB or MOBI, FB2 stores the entire book content in a single XML file that combines metadata like author and title, structural information, and the complete text in one document. FB2 supports Unicode for international character sets, embedded images in Base64 format, and basic formatting through XML tags. The format is optimized for novels and text-based works and does not support fixed layouts or complex CSS formatting. Outside Russia and Eastern Europe, FB2 is rarely used but is supported by Calibre, FBReader, and Cool Reader. FB2 files are frequently packaged in ZIP archives to save storage space. Converting to EPUB is straightforward and recommended since EPUB offers significantly broader compatibility while preserving FB2 structural information.
Why convert FB2 → EPUB?
FB2 (FictionBook 2.0) is an XML-based e-book format primarily used in Russian-speaking regions. It stores metadata, text structure, and formatting in XML, but isn't supported by most Western e-readers and apps. Converting to EPUB (usually EPUB) makes FB2 books readable on all major e-readers — Kindle, Kobo, Tolino, Apple Books, and all other platforms. EPUB is the universal standard for e-books. EPUB is the open e-book standard with flexible layout for all e-readers except older Kindle devices.