Kindle can not supported the epub file. and the epub format is a most populate ebook format. this online tool can convert them. kindle file format is azw,mobi,etc.
Input Formats:
AZW4, MOBI
Output Formats:
EPUB
Options Setting:
Upload Files
File URL:
Add File
(*This site does not store user uploaded files, all uploaded and converted files will be automatically deleted after 2 hours, By upload file you confirm that you understand and agree to our terms)