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Why this runs on your computer

There is no upload: The work happens in this tab. Your file never travels, so there is no copy of it anywhere but your own disk.
Nothing to delete later: Sites that upload promise to delete your file afterwards. That promise only matters because the file was theirs to hold.
It works with the Wi-Fi off: The honest test. Turn off your connection and the tools keep working, because everything they need is already here.

AZW3 to EPUB, with images and contents kept

Turn an AZW3 (KF8) ebook into an EPUB for any e-reader - here in this tab, with nothing uploaded.

How to convert azw3 to epub

Drop your .azw3 file.
Check the title and author.
Save the EPUB.

Why this one stays private

Moving your books between readers should not mean handing them to a converter site. This converts the book in your browser.

Questions

What is kept?

AZW3 is close to EPUB inside, so almost everything: text, styles, images, the table of contents, the title, the author and the cover.

Does it work with books bought from Kindle, Kobo or Apple?

Only if they have no DRM. Copy-protected books are encrypted, and removing that is not something this site does. Books from Project Gutenberg, Standard Ebooks, Humble Bundle and most indie stores are DRM-free.

How to convert azw3 to epub

Why this one stays private

Questions

Other tools here