EPUB to MOBI converter

Upload an EPUB eBook and download MOBI — read on older Kindle devices and apps. Free, no registration.

EPUB in MOBI out HTTPS

Drop your EPUB file here

or browse — up to 50 MB • .epub

Choose EPUB file

Drag and drop an .epub file — up to 50 MB.

Calibre converts the eBook to MOBI format.

Save the .mobi file with the same base name.

Kindle-friendly format from standard EPUB.

MOBI works on legacy Kindle e-readers and older apps.

Turn EPUB purchases or library books into MOBI.

Convert in the browser — Calibre on the server.

Need the reverse? Try MOBI to EPUB.