AZW

Readable

other

Azw was a proprietary e-book file format, created by Amazon, which could be used on any device which had its kindle app, eg smartphones, tablets, computers and of course the Kindle. It is basically the mobi format (fmt/396), but can be distinguished from this by the presence of bytes 'kindle:'. It has been superseded by the EPUB format for Amazon Kindle use.

Identify it

Extensions	`.azw.azw3.mobi.amr.kfx`
MIME types	`application/vnd.amazon.mobi8-ebook`
PRONOM	`fmt/1937`
Wikidata	`Q5715270`

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Open it

ExifToolOpen sourcereads · Artistic License / GNU General Public License, version 1.0 or later
Q747793Open sourcereads · GNU General Public License, version 3.0
Adobe RoboHelpwrites
Foliatereads
Lectorreads
Lexcycle Stanzareads
PDF Gurureads
Q136469reads
STDU Viewerreads · freeware

Convert it

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Sources

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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