What is the current or preferred file type to convert an epub to for a kindle?

Assuming paperwhite, or similar relatively recent model. My kindle has backlight but isn't waterproof like the paperwhite -- so relatively recent.

More asking going forward: assuming that mobi will be deprecated at some point, what's the replacement?

  • Why do you think .mobi will be depreciated?
    – mmmmmm
    Jul 21, 2021 at 9:34

1 Answer 1


The current file extension is .kfx (According to Wikipedia this is "Kindle Format 10" )

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