Is the converter free?

Yes. You can convert up to 20 books a day without an account.

Does it work with books I bought on Amazon?

Only if they are DRM-free. Most Kindle Store books have DRM, and LangBox does not remove it.

Which format should I use for a Kindle?

Send to Kindle accepts EPUB, so you usually do not need MOBI. Use AZW3 to copy a book onto a Kindle by USB. Use MOBI only for older Kindles and apps that cannot open AZW3.

Is the formatting kept?

LangBox converts with Calibre. Chapters, the table of contents, images and most styling are kept. Complex layouts can change slightly.

What happens to my file?

It is converted on a LangBox server and deleted as soon as the converted file is sent back. LangBox does not keep a copy.

MOBI to EPUB converter

Convert a Kindle MOBI book to EPUB for Apple Books, Kobo, Google Play Books and most reading apps. Free, no sign-up.

Drop an EPUB, MOBI or AZW3 file here

Convert to

EPUB, MOBI or AZW3 up to 50 MB · DRM-free books

Your book is sent to LangBox only to convert it, and is deleted right after. No sign-up. Up to 20 books a day.

Keep learning after this tool

These tools handle one file at a time. The free LangBox Chrome extension brings the same translation to everything you read and watch, and saves new words for review.

Install FreeLangBox runs in Chrome on a computer.Email me the link

Questions

Is the converter free?: Yes. You can convert up to 20 books a day without an account.
Does it work with books I bought on Amazon?: Only if they are DRM-free. Most Kindle Store books have DRM, and LangBox does not remove it.
Which format should I use for a Kindle?: Send to Kindle accepts EPUB, so you usually do not need MOBI. Use AZW3 to copy a book onto a Kindle by USB. Use MOBI only for older Kindles and apps that cannot open AZW3.
Is the formatting kept?: LangBox converts with Calibre. Chapters, the table of contents, images and most styling are kept. Complex layouts can change slightly.
What happens to my file?: It is converted on a LangBox server and deleted as soon as the converted file is sent back. LangBox does not keep a copy.