FB2 to EPUB

Upload a FB2 file and download it as EPUB. Free to start.

Drop files here, or press Enter to choose them. Up to 50 MB per file.
Drop a FB2 file hereFree · up to 50 MB · 10 operations in total without an account · or paste with Ctrl+V
  • Sent over HTTPS · link expires in 24 h

How it works

  1. Step 1:

    Drop the FB2 file on the orange block above, or press “Choose FB2”.

  2. Step 2:

    Press “Convert to EPUB”. The block shows the progress while the server converts the file.

  3. Step 3:

    Press “Download” to save the EPUB file. On Free the link works for 24 hours.

How FB2 to EPUB conversion works

The FB2 file format stores data in the FB2 format. Converting to EPUB produces an ebook file that packages HTML, CSS, and images in a zipped OPS container as an ISO-standardised ebook format that reflows text to fit any screen width. This conversion changes the file's encoding, compression method, and supported feature set. Reflowable text, chapter structure, and the table of contents carry across; embedded fonts transfer when the target format supports them. This makes EPUB the practical choice when the destination system requires it or when the target format offers better compatibility or compression. 1converter runs this conversion on the server: your file is uploaded encrypted over HTTPS, converted using trusted open-source libraries, and the output is held for 24 hours before automatic deletion.

Sources and specifications

When to convert

What the EPUB file is good for and why people convert to it.

  • Keeps FB2 metadata (title, authors, tags) mapped into EPUB package fields
  • Converts XML-based formatting and structure into reflowable EPUB content for e-readers
  • Read an FB2 novel on Kindle-like or tablet e-readers that prefer EPUB
  • Import a library’s FB2 books into an EPUB-based reading app

Where your file goes

  • It travels to our server over an encrypted HTTPS connection and is converted there.
  • The EPUB file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.

Questions and answers

What people ask before converting FB2 to EPUB.

Ask supportAll questions
Does FB2 to EPUB reduce text quality?
No—FB2 and EPUB are both text/XML-based containers, so conversion is not typically lossy for the book text; the main changes are the packaging and stylesheet handling.
Will my FB2 metadata like title and authors be preserved?
Most common FB2 metadata fields (e.g., title, authors, and genre tags) can be mapped into the EPUB package metadata so readers display correct book info.
How does EPUB handle formatting compared to FB2?
FB2 stores content as XML with semantic tags, while EPUB uses XHTML content files plus CSS; the converter translates FB2 structure into reflowable EPUB markup.
Will images embedded in FB2 work after conversion?
If your FB2 includes embedded images (e.g., cover or inline graphics), the converter can include them as EPUB resources referenced by the XHTML, improving compatibility in e-readers.

More about this pair

Many files at once? Starter converts 5 at a time, 100 a day.

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