Ebook converter
EPUB to AZW3 converter
Convert an EPUB to AZW3 for Kindle, keeping far more typography than MOBI. Free, no signup, files deleted right after download.
Drop your EPUB here or browse
Up to 30 MB. The file is converted on our server and deleted the second your download starts.
No account, no email, no watermark. 5 free conversions a day.
- Free
- No signup
- Files deleted after download
- Up to 30 MB
How it works
Drop your EPUB
Pick a file up to 30 MB from your device, or drag it onto the box. Nothing to install and nothing to sign up for.
We rebuild it as AZW3
Text, headings, reading order and images are rebuilt as a valid AZW3 file on our server, usually in a few seconds.
Download and read
Your AZW3 downloads straight to your device and the copy on our server is deleted the moment the transfer starts.
Why convert EPUB to AZW3
If the Kindle was made in the last decade, AZW3 is the format to send it. It supports the same CSS features as EPUB 3, so embedded fonts, footnotes, drop caps and the table of contents survive instead of being flattened the way MOBI flattens them.
Getting the file across is the easy part: connect the Kindle by USB and copy it into the documents folder, or use Send to Kindle from your Amazon account. Keep MOBI for genuinely old hardware and use AZW3 everywhere else.
EPUB vs AZW3
| EPUB | AZW3 | |
|---|---|---|
| Reflow | Text rewraps to any screen | Text rewraps with Kindle layout |
| Font size | Pick size, typeface and spacing | Kindle sizes plus embedded fonts |
| Images | Scale with the text around them | Scale with the text around them |
| Best for | Novels, textbooks, long reads | Modern Kindles and Kindle apps |
EPUB to AZW3 questions
AZW3 or MOBI for my Kindle?
AZW3 for anything made in the last decade — it keeps the layout, fonts and footnotes. MOBI only for genuinely old hardware.
How do I get the file onto the device?
Connect it by USB and copy the file into the documents folder, or use Send to Kindle from your Amazon account.
Is the table of contents kept?
Yes, the EPUB navigation document becomes the Kindle table of contents.