How do I open a .FB2 file on Windows or Mac?

You can open .FB2 files using Calibre, FBReader, CoolReader, Moon+ Reader. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .FB2 to a standard format in your browser.

Is a .FB2 file safe to open?

This format carries a safety rating of Low Risk. Well structured XML document format easy to parse and convert

Can I convert a .FB2 file to other formats?

Yes! .FB2 can be converted to formats such as .EPUB, .PDF directly in your web browser.

What should I do if a .FB2 file is corrupted or won't open?

If your .FB2 file displays an invalid header or signature error, check its magic bytes hex header (Varies) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

How do I open .FB2 files?

You can open .FB2 files using Calibre, FBReader, CoolReader, Moon+ Reader.

Documents • MIME: application/x-fictionbook+xml

.FB2 – FB2 File Format

Q: What is a .FB2 file?

A .FB2 file is a FB2 File Format associated with Documents. FB2 is an XML-based eBook format originating in Russia, encoding book structure, footnotes, cover art, and inline images in a single file.

FB2 is an XML-based eBook format originating in Russia, encoding book structure, footnotes, cover art, and inline images in a single file.

Primary Category Documents

MIME Type application/x-fictionbook+xml

Magic Bytes Signature Varies

Security Risk Rating Low Risk

Recommended Software to Open .FB2

Calibre

windows, mac, linux • Free

FBReader

windows, mac, linux • Free

CoolReader

windows, mac, linux • Free

Moon+ Reader

windows, mac, linux • Free