Step 1: Submit your EPUB files using the button above or by pull and release.
Step 2: Click the 'Transform' button to start the transformation.
Step 3: Save your converted AZW3 files.
EPUB to AZW3 Transformation FAQ
Will the AZW3 work on Kindle / Kobo / Apple Books?
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EPUB is read natively by Kobo, Apple Books, Google Play Books, and most Android readers. For Kindle, target MOBI or AZW3, or send the EPUB to your Kindle address (modern Kindles convert it on receipt). The converter picks sensible defaults per AZW3 format for the target device.
Is my EPUB file private during ebook conversion?
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Yes. Uploaded EPUB files are processed on our own conversion servers, no person reviews them, and they are never shared. The upload and the converted AZW3 are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
Can I convert EPUB to AZW3 and edit it before publishing?
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Yes — the AZW3 is a standard ebook package you can open in Calibre or Sigil to fine-tune metadata, cover, CSS, and chapter splits before distributing. The converter gets you a clean, valid AZW3 starting point; the editor handles final polish.
