File types explained

What is an EPUB file?

How ebooks are stored, how to open an EPUB on any device, and how to share one.

What is an EPUB file?

The short answer

An EPUB file is an ebook. It is the most widely supported open format for digital books, used by most stores and readers other than Amazon Kindle, which has its own.

The thing that sets EPUB apart from a PDF is reflow. The text is not locked to a fixed page. It rearranges to fit whatever screen you are reading on, and you can change the font size without the layout breaking. That is what makes a long book comfortable to read on a phone.

How to open an EPUB file

EPUB or PDF, which to use

Choose EPUB when the content is mostly text meant for reading on screens, like a novel or a guide. Choose PDF when the exact page layout matters, like a form, a report, or anything meant to be printed.

How to share an EPUB file

EPUB files are usually small, but email is still a clumsy way to send a book. A link is simpler.

  1. Upload the EPUB to Snapy.
  2. Copy the link.
  3. Share it. The reader downloads the book and opens it in their app of choice.

Upload a file to share an ebook as a link, or learn how to turn a PDF into a link.

An EPUB is small, but sending one by email is still clumsy. Some inboxes treat the attachment as unknown, and a book buried in an inbox is easy to lose. A link is cleaner and opens on any device.

Snapy gives you a public link to the EPUB you upload. Drop the file in the box on the home page, optionally pick a custom name like book.snapy.page, click Get my link, and share the link. Whoever clicks it can download the book and open it in their reader of choice, with no signup.

This makes it easy to share a finished book or a working draft for reading on a phone, tablet, or e-reader. The reader picks up the file in a tap, then opens it in Apple Books, Google Play Books, Calibre, or any EPUB app they like.

Drop your EPUB file and get a link. For more options, see how to share a file.

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