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 MD converter, without the upload.
Turn AZW3 e-books into MD. 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
- MD: text only
How to convert AZW3 to MD
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.
MD is already chosen
Press Convert. There is nothing else to set. The work happens in this tab.
Download
Save the MD, or download everything as one ZIP if you converted several files.
Why ToAny
Private by construction
The AZW3 to MD 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 MD: what to expect
AZW3 is only opened by Kindle devices and apps. Markdown is plain text that stays readable and is easy to keep in version control. AZW3 is at home in books on Kindle; MD is the usual choice for READMEs, notes and documentation.
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 MD
MD
Markdown
Markdown is plain text with a few symbols for headings, lists, links and emphasis. It is readable as-is and converts cleanly to HTML, which is why developers and note-takers favour it.
Opens in Any text editor; rendered by GitHub, Obsidian, Notion and many note apps
MD converter| AZW3Kindle e-book (AZW3) | MDMarkdown | |
|---|---|---|
| Stands for | Kindle Format 8 | Markdown |
| Type | Reflowable e-book | Lightweight markup text |
| Compression | Proprietary container | None |
| Introduced | 2011, by Amazon | 2004, by John Gruber |
| Opens in | Kindle devices and apps, Calibre | Any text editor; rendered by GitHub, Obsidian, Notion and many note apps |
| Best for | Books on Kindle | READMEs, notes and documentation |
| File extension | .azw3, .azw | .md, .markdown |
Questions
Are my e-books uploaded anywhere?
No. The AZW3 to MD 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 MD?
Text is kept. Formatting carries over only as far as MD 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 MD 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 MD. 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.