How to Convert KFX to EPUB

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There are around 100,000 eBooks on Amazon website that their titles in the new KFX format, so there's a good chance that you may someday get one KFX format book. If you want to read KFX ebooks in Kobo or iPad device, you must convert KFX to EPUB or PDF which are supported by most reader apps or devices. And this article is a step to step guide to help you convert KFX to EPUB.

The Introduction to KFX Format

A KFX file is an eBook created in the Kindle Format 10, Amazon's successor to the AZW3 format. KFX files support enhanced typesetting capabilities. The KFX eBook downloaded from the Amazon store depends on the device being used to download and read the eBook. It may be saved in the KFX format or in the AZW formats.

KFX books downloaded with Kindle for PC/Mac is saved in AZW format. Below is one KFX book downloaded via Kindle for PC/Mac.

kfx content Pc

While it will be saved in KFX format if it is downloaded with Kindle E-ink Reader. Below is one KFX book downloaded via Kindle Paperwhite.

kfx content device

Why Convert KFX to EPUB?

You can only read the KFX books with Kindle apps or devices with firmware higher than 5.8 registered under your Amazon purchased account, which may cause great inconvenience for Kindle readers. However, EPUB is one of the highly used ebook format which is adopted by majority of ebooks stores, like Kobo/Google Play Book/Nook, etc. So if you convert KFX to Epub, you can read your books on more free apps or E-ink readers.

How to Remove DRM from KFX

All KFX books has Digital Rights Management (DRM protection). So you have to remove DRM from KFX books if you want to share your purchased KFX books with friends.

Step 1install an old version Kindle for PC/Mac to your computer and sign in with your Amazon account.

Step 2download Kindle books to your computer via Kindle for PC/Mac.

Step 3download Epubor Ultimate to your computer and launch it.

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Step 4add the Kindle books under Kindle Column from the left sidebar to the right main window. Then the DRM protected AZW books will be decrypted immediately.

decrypt kfx via Kindle for PC


The latest 5.10.2 and above Kindle Firmware and the version 1.25 and above Kindle desktop app contain changes which make them incompatible with all the existing DRM Removal. So downgrading your Kindle app to an older version is required to make Epubor Ultimate work smoothly.

downgrade kindle app automatically

How to Convert KFX to EPUB

Many people assume that Calibre can open DRM free KFX books. Wrong! Neither can Calibre decrypt and convert KFX books, nor can it open DRM free KFX books. If you want to transfer KFX books to iPad or Kobo device, you need to convert KFX to EPUB.

After removing DRM from KFX books successfully, next choose Epub as the output format and hit the Convert to EPUB button. Then all of your decrypted KFX books listed on the main window will be converted in batch. The cool thing about Epubor software is that it can save you tons of time.

convert kfx to epub


For macOS 10.15 Catalina users, Epubor KCR Converter is the only solution for you to export your Kindle books from Kindle Could Reader directly without downgrading your Kindle app.

convert kindle cloud reader to mobi


Now you have recovered full control of your purchased KFX books. And you can read your KFX books on iPad or Kobo reader freely after converting KFX to EPUB format.

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works for Epubor and writes articles about eBooks and eReaders. She explores the best method to help you read eBooks more freely and wants to share all she has got with you.

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