Free · Private · In your browser
FB2 to EPUB Converter
Convert FictionBook files to EPUB for Kindle, Kobo or any modern reader. Fully in-browser.
Files never uploaded Works offline Free, no signup No file size limits
How it works
- Drop your .fb2 (or .fb2.zip – no need to unzip it first).
- The FictionBook structure is mapped to EPUB: chapters, poems, footnotes, images, metadata.
- Download an EPUB that reads beautifully on any modern device.
Why “no upload” matters
Every conventional converter site works the same way: your file travels to their server, sits in their queue, gets converted on their hardware, and – you hope – gets deleted afterwards. You can’t verify any of it. The FBI has even warned about free converter sites that use that upload as a way to deliver malware or harvest the documents themselves. Your books are yours; a format change shouldn’t require handing them to a stranger.
ebook.tools removes the question entirely. The converter is delivered to your browser as code and runs on your machine; the file you drop is opened from memory, transformed, and saved back – the network isn’t involved at all. That isn’t a policy promise, it’s an architecture, and you can test it: load this page, switch off your wifi, and convert. It works exactly the same, because there was never anything to send.
FictionBook’s clever design, translated for your reader
FB2 – FictionBook 2 – is an ebook format with an unusually principled design. Born in the Russian-speaking ebook world in the early 2000s and still dominant across Russia and Eastern Europe, it describes a book semantically: an FB2 file doesn't say "italic, 14 pixels", it says "this is a stanza of a poem", "this is an epigraph", "this is a footnote". All of it in a single XML file, with images embedded inside, which makes FB2 books wonderfully self-contained and easy to catalogue.
The catch is device support. Outside dedicated apps, FB2 barely registers: Kindles won't take it, Kobo's support is grudging, and most mainstream reading apps ignore it. EPUB is how an FB2 library reaches modern hardware.
Semantic markup is exactly what a converter wants as input, and this tool leans into it. Sections become chapters with a real table of contents. Poems and stanzas keep their verse layout instead of collapsing into prose. Epigraphs keep their conventional styling, footnotes become proper linked notes you can tap and return from, and embedded images – including the cover – are extracted and packed into the EPUB correctly. Title, author, series and genre metadata carry across, and Cyrillic (including files in the older Windows-1251 encoding) is handled cleanly.
Files arriving as .fb2.zip – the standard way FB2 is distributed – are accepted directly; the converter looks inside the zip itself. And if the destination is a Kindle, convert here first, then run the result through our Kindle EPUB fixer to make Send to Kindle happy.