Due to the system update, many newly downloaded eBooks on Kindle devices are saved in KFX format, a new eBook format of Amazon Kindle devices that's quite new to us. Now, this new KFX eBook format has been accepted by many Kindle devices like the latest Kindle eReader and Kindle iOS app, but also Kindle for PC version 1.19. However, this eBook format is still not widely welcomed by other devices like Kobo and eReader apps. To read KFX files widely, we need to convert KFX to TXT or other eBook formats first. This guide would show you how to convert KFX to v format with different KFX to TXT converters.

Part 1: Introduction to KFX File

A KFX file is an eBook created in the Kindle Format 10 (KF10), Amazon's successor to the .AZW3 (Kindle 8) format. It contains an Amazon eBook, which includes the text and metadata describing the book, such as the author, title, and number of pages. KFX files support enhanced typesetting capabilities that are not provided in previous formats, such as hyphenation, improved character placement and word spacing, and a more adaptable page layout and margins.

Kobo vs. Kindle eBooks

The KFX eBooks come with DRM protection that once was unbreakable by Kindle eBook DRM removal software. However, with the fast development of technology, we can now freely de-DRM Amazon Kindle KFX eBooks and convert KFX eBooks to TXT or other formats for unlimited reading. The below guide would show you how to convert KFX to TXT. It's an example for you to remove DRM from KFX eBooks and convert KFX eBooks to other eBook formats.

Part 2: How to Convert KFX to TXT with Leawo Prof. DRM

Leawo Prof. DRM is the perfect choice for you to remove DRM from KFX eBooks and convert KFX to TXT and other eBook formats like PDF, TXT, Mobi, etc. in clicks. It integrates KFX DRM removal and KFX eBook converter into one. The KFX DRM removal works in the background, which means you don’t need to do any manual operation. What’s more, Leawo Prof. DRM is still a comprehensive DRM removal and converter that could help you remove DRM protection and convert iTunes video, music and audiobooks, Audible audiobooks, and eBooks from Amazon, Kobo, Adobe Digital Editions, etc.

The below guide shows you how to remove KFX DRM protection and convert KFX to TXT with Leawo Prof. DRM. Firstly, download and install Leawo Prof. DRM on your computer. Also, make sure you have downloaded and installed the Kindle software on your computer, and all KFX eBooks have been downloaded as well.

Step 1: Log in Kindle app on your computer

On the computer, open the Kindle app and log in Kindle with your own Kindle account and password.

Log in your  Kindle desktop app

Step 2: Add Kindle KFX eBooks

Launch Leawo Prof. DRM and then click the "Add Files" button on the main interface.

Add Kindle eBooks

Step 3: Choose Kindle KFX eBooks to convert

On the popup "Add Files" window, open "Library > Kindle" tab to choose Kindle KFX eBooks for converting. After selecting target eBooks, click the "Add" button. You could refresh your Kindle software by clicking the refresh button if you don't see eBooks.

Choose  Kindle books to convert

Step 4: Set output format

Click the pencil icon within each loaded eBook title to choose TXT as output format to convert KFX to TXT. Check the "Apply to all eBook files" button to save time.

Set output format

Step 5: Set output directory

Now, move mouse to the bottom “Output” box and set a directory there.

Choose  output directory

Step 6: Start to convert KFX to TXT

Finally, click the “Convert” button at the bottom right corner to start converting Kindle KFX eBooks to TXT format with this KFX to TXT converter. As we have mentioned above, the KFX DRM removal happens in the background.

Set output directory

Use the ePub eBooks (converted from Kindle KFX eBooks) as you like after converting.

Part 3: How to Convert KFX to ePub with Calibre

The second KFX to TXT converter we would like to recommend to you is Calibre, a powerful and easy to use eBook manager and converter. Calibre supports organizing existing e-books into virtual libraries, displaying, editing, creating and converting e-books, as well as syncing e-books with a variety of e-readers. This is a totally free DRM removal software tool to help you remove KFX DRM protection with special DRM removal plugin and convert KFX eBooks to ePub format in clicks.

Convert KFX to TXT

Follow the below steps to learn how to remove DRM from KFX files and convert KFX eBooks to TXT files with Calibre:

1. Download Calibre to your computer and launch it.

2. Download DeDRM_tools and KFX Conversion Input Plugin to your computer.

3. load DeDRM Calibre Plugin and KFX Conversion Input Plugin to Calibre: Open calibre's Preferences dialog. Click on the Plugins button. Next, click on the Load plugin from file button. Navigate to the unzipped DeDRM_tools folder and, in the folder DeDRM_calibre_plugin, find the file DeDRM_plugin.zip. Click to select the file and select Open.

4. Add Kindle KFX books to Calibre by clicking Add books in the tool bar. You need to download KFX books with Kindle for PC/Mac or Kindle e-ink Reader first, then add KFX books from My Kindle Content folder or the Kindle's Document folder to Calibre manually.

5. Convert KFX to TXT: Click Convert books in the tool bar and choose TXT/Mobi/PDF/AZW3/TXT... as the output format and click OK to start the conversion.

Note: Though Calibre can remove DRM from KFX books , it still can't open decrypted KFX books.

Part 4: Leawo Prof. DRM vs. Calibre

Obviously, you could see from the above guideline that Leawo Prof. DRM is much easier for you to remove DRM from Kindle KFX eBooks, while Calibre is much complicated in operating. The below comparison chart would show you the differences between these 2 KFX to TXT converters:

 

Leawo Prof. DRM

Calibre

Remove DRM protection

Yes

Yes (eBooks only)

Convert iTunes DRM video

Yes

No

Convert iTunes DRM Music

Yes

No

Convert iTunes DRM audiobooks

Yes

No

Convert Audible audiobooks

Yes

No

Convert eBooks between different formats

Yes

Yes

Manage eBooks

Yes

Yes

Ease to use

Much easier

Pretty much complicated

Platform

Windows & Mac

Windows & Mac