What is a .EPUB file?

A .EPUB file is a Electronic Publication E-Book associated with Documents. Standard open e-book format with reflowable typography and XHTML layout structure.

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

You can open .EPUB files using Calibre E-Book Management, Apple Books, Readium Web Reader. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .EPUB to a standard format in your browser.

Is a .EPUB file safe to open?

This format carries a safety rating of Low Risk. HTML e-book container. Safe.

Can I convert a .EPUB file to other formats?

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

Documents • MIME: application/epub+zip

.EPUB – Electronic Publication E-Book

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

If your .EPUB file displays an invalid header or signature error, check its magic bytes hex header (50 4B 03 04 ... 6D 69 6D 65 74 79 70 65 61 70 70 6C 69 63 61 74 69 6F 6E 2F 65 70 75 62 2B 7A 69 70) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

Standard open e-book format with reflowable typography and XHTML layout structure.

Primary Category Documents

MIME Type application/epub+zip

Magic Bytes Signature 50 4B 03 04 ... 6D 69 6D 65 74 79 70 65 61 70 70 6C 69 63 61 74 69 6F 6E 2F 65 70 75 62 2B 7A 69 70

Security Risk Rating Low Risk

Recommended Software to Open .EPUB

Calibre E-Book Management

windows, mac, linux • Free

Apple Books

mac, ios • Free

Readium Web Reader

windows, mac, linux • Free