FileopiaConvert FB2 to EPUB
Convert FB2 to EPUB free in your browser – chapters, images, cover and metadata kept. Batch convert, no upload, no Calibre needed.
- Upload
- Options
- Download
- ✓ 100% free
- ✓ No sign-up
- ✓ No limits
- 🔒 Files never leave your device
How to: FB2 to EPUB Converter
- Select one or more FB2 files.
- No settings needed – the EPUB is built automatically.
- Click Start and download your EPUB.
FB2 is FictionBook 2 – the XML e-book format used by Russian and Eastern European libraries (LitRes, Flibusta, Librusec), many Android readers and PocketBook devices. EPUB is the open e-book standard read by Apple Books, Kobo, Google Play Books, Thorium and almost every reader app. Fileopia converts between them locally – no software, no account, no upload.
Common uses
- Read FB2 books on Kobo, Apple Books or Google Play Books.
- Move a library between reading apps.
- Archive DRM-free books in an open format.
- Prepare classics from Project Gutenberg for school.
Tips for best results
- Check the title and author in the result info line after conversion.
- Send the EPUB to Kindle via Send-to-Kindle – Amazon accepts EPUB.
- Convert a whole folder at once.
How it works
The FB2 XML is parsed with your browser’s XML engine; every element is mapped to clean XHTML and base64 binaries become image files. A valid EPUB 3 (with EPUB 2 NCX for older readers) is assembled with JSZip.
Compared with other converters
Online e-book converters (CloudConvert, Convertio, Zamzar, online-convert) upload your book and cap free use per day or by size. Calibre is excellent but a 150 MB install. Fileopia runs instantly in a tab and keeps your library private.
Why use Fileopia for FB2 to EPUB Converter?
| Fileopia | Typical upload-based sites | |
|---|---|---|
| Files uploaded to a server | No – processed on your device | Yes |
| Sign-up required | Never | Often for bigger jobs |
| Hourly / daily task limits | None | Common on free plans |
| Watermark on output | Never | Sometimes |
| Works offline after loading | Yes, for most tools | No |
Your files never leave your device
FB2 to EPUB Converter runs entirely in your browser using JavaScript and WebAssembly. Your files are read from your disk into this tab, processed in memory and saved straight back to your downloads folder – they are never uploaded to Fileopia or any third party.
- Test it yourself: once this page has loaded, switch off Wi‑Fi or mobile data and run the tool – it keeps working.
- Check the network: open your browser’s developer tools (F12 → Network) while processing; you will see no file upload requests.
- Nothing to delete: close the tab and the data is gone – there is no server copy, no retention period and no account.
Frequently asked questions
How do I convert FB2 to EPUB without Calibre?
Drop the file here and press Start. Fileopia parses the FB2 in your browser and builds a standards-compliant EPUB.
Are my books uploaded?
No – everything happens on your device.
What is preserved?
Sections and nested titles, epigraphs, poems and stanzas, citations, footnotes (as a Notes chapter), tables, embedded images, the cover, title, authors, language and annotation.
What can’t be converted?
FB2, FB2.ZIP and FBZ are supported, in UTF-8 or Windows-1251/KOI8-R encodings.
Does it handle Cyrillic and other scripts?
Yes – text is decoded to Unicode and fonts are chosen per script, so Russian, Ukrainian, Greek, Arabic, Hebrew, Chinese and Indic text display correctly.
Can I batch convert?
Yes – select many files and get a ZIP.
Is it legal?
Converting DRM-free books you own for personal use is fine in most countries; removing DRM is not offered.
Does it work offline?
Yes, after the page has loaded once.
Is FB2 to EPUB Converter really free?
Yes. Every tool on Fileopia is 100% free with no file limits, no sign-up and no watermarks. The site is supported by unobtrusive ads.
Are my files uploaded to a server?
No. Fileopia processes your files directly in your browser using JavaScript. Your documents never leave your device, so they stay completely private.
Does it work on mobile?
Yes. Fileopia works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.