Convert.Guru

KFX Converter

Convert KFX files online for free


Drop or upload your .KFX file

How to convert your KFX file

  1. Click Select File above, and choose your KFX file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.


Convert KFX to another file type

The converter easily converts your KFX file to various formats—free and online. No Kindle or extra software needed.

  • KFX to EPUB
  • KFX to PDF
  • KFX to AZW3
  • KFX to MOBI
  • KFX to AZW
  • KFX to PRC
  • KFX to LIT
  • KFX to OPF
  • KFX to CBZ
  • KFX to CBR
  • KFX to CB7
  • KFX to CBT

Convert a file to KFX

The converter also works in reverse, allowing you to convert your file into the KFX file type—in the best quality.

  • FB2 to KFX
  • MOBI to KFX
  • CBT to KFX
  • RTF to KFX
  • CB7 to KFX
  • DOCX to KFX
  • DJVU to KFX
  • AZW to KFX
  • CBA to KFX
  • PDF to KFX
  • DOC to KFX
  • EPUB to KFX

About KFX files

KFX is a file format developed by Amazon for the Kindle e-reader. It is a proprietary format and is not supported by other e-reader devices. KFX files are used to store e-books, magazines, and other documents. They can be identified by their .kfx file extension.

KFX files can be converted to other formats such as EPUB, MOBI, PDF, and AZW3 using software such as Calibre, various tools, and Kindle Previewer. However, it is important to note that conversion of KFX files can be difficult and time-consuming, due to the proprietary nature of the file format. Additionally, the conversion process may not be successful in preserving all formatting, images, and other content.

For these reasons, it is often easier to use an online service such as Convert.Guru to convert KFX files. Convert.Guru is free and easy to use, and can quickly and accurately convert KFX files to other formats.


The KFX Converter Story

The history of Convert.Guru began more than 25 years ago in California, when Tom Simondi published the most comprehensive database of file formats on his website. Before that, Tom had worked on Space Shuttle development at the Air Force Systems Command’s Space Division in Los Angeles. He is known as one of the top programmers of the late 1980s.

When Microsoft integrated Tom’s Filext database into Windows XP, it became the leading platform for analyzing and processing file types and formats.

Today, we use the latest technologies to analyze, process, and convert one of the world's largest collections of file formats. We are committed to developing the best KFX converter by continuously improving quality, usability, and reliability.

Drop here