EPUB MOBI
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Convert EPUB to MOBI for wider compatibility

Converting EPUB to MOBI gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when EPUB will not play nicely everywhere.

How to convert EPUB to MOBI

  1. 1 Drop your EPUB file into the converter above.
  2. 2 It is converted to MOBI automatically — no settings to fiddle with.
  3. 3 Download your new MOBI file instantly.

EPUB vs MOBI

Feature EPUB MOBI
Compression Lossless Lossless
MIME type application/epub+zip application/x-mobipocket-ebook
Best for Novels and long-form reading on e-readers, phones and tablets. Reading on older Kindle e-readers — often converted from or to EPUB.

About the formats

EPUB

EPUB e-book

EPUB is the open standard for e-books. Its reflowable text adapts to any screen size and reader app, making it ideal for novels and long-form reading on phones, tablets and e-readers.

Strengths

  • Reflows to fit any screen
  • Adjustable fonts and sizes
  • Open standard for e-readers

Limitations

  • Not page-exact like PDF
  • Weaker for complex layouts
  • Needs an e-reader app

Best for: Novels and long-form reading on e-readers, phones and tablets.

MOBI

Kindle MOBI e-book

MOBI is the older e-book format used by Amazon Kindle devices and apps. It holds reflowable text and is widely supported by older Kindles, though Amazon now favours newer formats.

Strengths

  • Works on older Kindle devices
  • Reflowable text
  • Long-established e-book format

Limitations

  • Being phased out by Amazon
  • Weaker layout than EPUB
  • Not ideal for complex formatting

Best for: Reading on older Kindle e-readers — often converted from or to EPUB.

Frequently asked questions

Upload your EPUB file above and it is converted to MOBI automatically. When it is ready, download your new Kindle MOBI e-book — the whole thing takes just a few seconds in your browser.

Converting EPUB to MOBI gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when EPUB will not play nicely everywhere.

MOBI is a lossless format, so your converted file keeps its full quality with no degradation.

Yes. The converter is free to use, with no watermark and no sign-up required.

Your files are processed securely and are never shared with anyone.

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