AZW3
Kindle e-book (AZW3)
AZW3, also called Kindle Format 8, replaced MOBI on Kindles in 2011 and added proper HTML5 and CSS styling. Only Amazon's readers and Calibre open it.
Opens in Kindle devices and apps, Calibre
AZW3 converterAZW3 to HTML converter, without the upload.
Turn AZW3 e-books into HTML. It is converted in your browser, so the file never leaves your device.
Drop AZW3 files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Convert to
- On your device · nothing is uploaded
- No account, no email
- Batch and ZIP download
- Free
- HTML: one page, all chapters
How to convert AZW3 to HTML
Add your AZW3 e-books
Drop AZW3 (KF8) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
HTML is already chosen
Press Convert. There is nothing else to set. The work happens in this tab.
Download
Save the HTML, or download everything as one ZIP if you converted several files.
Why ToAny
Private by construction
The AZW3 to HTML converter is part of this page and runs inside your browser. Your e-books are never sent to ToAny or to anyone else.
No upload, no queue
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
Free, without an account
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
AZW3 to HTML: what to expect
AZW3 is only opened by Kindle devices and apps. HTML opens in any browser and can be published on the web as-is. AZW3 is at home in books on Kindle; HTML is the usual choice for web pages and emails.
The HTML is made inert: scripts, event handlers and forms are removed, remote pictures become plain links and nothing in it is fetched when you open it. Both the older Mobi format and the newer KF8 (AZW3) are read, with the chapters in order and the pictures embedded; a book bought from the Kindle store with Amazon copy protection (DRM) is refused because its text cannot be read.
AZW3 vs HTML
HTML
Web page
HTML is the markup every web page is written in. A saved .html file contains the page's structure and text; its images, styles and scripts usually live in separate files.
Opens in Every web browser
HTML converter| AZW3Kindle e-book (AZW3) | HTMLWeb page | |
|---|---|---|
| Stands for | Kindle Format 8 | HyperText Markup Language |
| Type | Reflowable e-book | Web page markup |
| Compression | Proprietary container | None |
| Introduced | 2011, by Amazon | 1991, by Tim Berners-Lee (now maintained by WHATWG) |
| Opens in | Kindle devices and apps, Calibre | Every web browser |
| Best for | Books on Kindle | Web pages and emails |
| File extension | .azw3, .azw | .html, .htm, .xhtml |
Questions
Are my e-books uploaded anywhere?
No. The AZW3 to HTML conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
Is anything lost when converting AZW3 to HTML?
Text is kept. Formatting carries over only as far as HTML supports it.
Can I convert several AZW3 files at once?
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
How do I convert AZW3 to HTML on Windows, Mac, iPhone or Android?
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the AZW3 file, press Convert and save the HTML. There is nothing to install.
Is there a file size limit?
Yes. Files up to 150 MB are accepted; a larger one is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.