What is EPUB?
EPUB is an open e-book standard built on ZIP, with content in reflowable XHTML, so one file adapts itself to phones, tablets and desktops.
About the format
EPUB is the open e-book standard maintained by the International Digital Publishing Forum. Technically it is a ZIP archive holding XHTML content, CSS, images and an OPF manifest that defines reading order. Its defining trait is that it reflows: content and presentation are separate, so a reader re-lays-out the text for the current screen and font size. That is why one file looks right on a phone, a tablet and a desktop, and why EPUB is the most portable format outside the Kindle ecosystem.
| Extensions | .epub |
|---|---|
| Typical use | Mainstream e-book distribution and long-form reading, especially text-heavy books such as novels. |
Converting from EPUB
Converting into EPUB
Other formats
Converted it — now what do you read it with?
Tide Reader opens TXT and EPUB, detects chapters on import, lays the text out the way you like it, and syncs your reading position across Windows, macOS, iOS and Android. Drop the converted file in and start reading.
Download Tide ReaderTXT and EPUB; local-first reading, with optional cloud sync and WebDAV.