EPUB to FB2 Converter

Select files for conversion or just drag and drop them to the upload area

How to convert EPUB files to FB2 online?

Step 1.

Upload EPUB-file

Click "Choose File" button to select a epub file on your computer. EPUB file size can be up to 50 Mb.
Step 2.

Convert EPUB to FB2

Click "Convert" button to start conversion.
Step 3.

Download your FB2

Let the file convert and you can download your FB2 file right afterwards.

Information about EPUB and FB2 file formats

Name EPUB FB2
Full name EPUB - Electronic Publication FB2 - FictionBook
File extension .epub .fb2, .fb2.zip
MIME type application/epub+zip
Developed by International Digital Publishing Forum Dmitry Gribov
Type of format Ebook file format e-book file format
Description EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers. It is a free and open standard published by the International Digital Publishing Forum (IDPF). The term is short for electronic publication and is sometimes styled ePub. FictionBook is an open XML-based e-book format which originated and gained popularity in Russia. FictionBook files have the .fb2 filename extension. The FictionBook format does not specify the appearance of a document; instead, it describes its structure. For example, there are special tags for epigraphs, verses and quotations.
Technical details EPUB is the most widely supported vendor-independent XML-based (as opposed to PDF) e-book format. An EPUB file is a ZIP archive that contains, in effect, a website-including HTML files, images, CSS style sheets, and other assets. It also contains metadata. EPUB 3 is the latest version. By using HTML5, publications can contain video, audio, and interactivity, just like websites in web browsers. In contrast to other eBook formats (e.g. ePub), a FictionBook document consists of a single XML file. Images are converted to Base64 and reside inside the <binary> tag, so the size of the embedded images is increased by approximately 37%. FictionBook files are often distributed inside Zip archives.
Associated programs Adobe InDesign, calibre, LaTeX, Genebook, epubcheck. FBReader, AlReader, Haali Reader, STDU Viewer, CoolReader, Okular, Ectaco jetBooks.
Wiki https://en.wikipedia.org/wiki/EPUB https://en.wikipedia.org/wiki/FictionBook