EPUB to MOBI

Convert EPUB ebooks to MOBI for Kindle.

EPUB to MOBI converts your EPUB ebook into the older MOBI format some Kindle devices and apps still expect, keeping chapters, images and basic formatting intact. DRM-protected ebooks aren't supported. Files up to 100MB upload over an encrypted connection.

Drop your EPUB file here

Upload files

Size up to 100 MB

How do I use EPUB to MOBI?

1
Drop your EPUB file into the box above, or click to browse and select it from your device.
2
Click Convert to MOBI. The file uploads over an encrypted connection and usually converts within a few seconds.
3
Download the .mobi file and transfer it to your Kindle over USB, email-to-Kindle, or a MOBI-compatible reader app.

Frequently asked questions

Will my Kindle open a MOBI file?

Older Kindle devices and the classic Kindle app read MOBI natively. Newer Kindles increasingly favor the KFX/AZW3 format and Amazon's Send-to-Kindle pipeline, which can also accept EPUB directly. If your device is recent, check whether it accepts EPUB before converting, since Amazon has been phasing MOBI out across its lineup.

How much does it cost?

Universal PDF requires a Pro subscription. One subscription unlocks every tool on the site, cancel anytime.

Are DRM-protected ebooks supported?

No. Ebooks purchased with copy protection from stores like Amazon, Kobo or Apple Books can't be converted here, because that protection has to be removed by the seller's own software first, which is outside what this tool does. Unprotected EPUBs, including most self-published and public-domain books, convert normally.

Does formatting survive the conversion?

Chapter breaks, embedded images and basic text styling like bold, italic and headings carry over in most books. Complex layouts (heavy custom CSS, embedded fonts, or fixed-layout picture books) may render more simply in MOBI, since it's a less flexible format than EPUB.

Last updated: July 8, 2026