AZW to AZW3 Converter

Convert AZW to AZW3 online, for free.



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By proceeding, you confirm you own the rights to the files you upload and agree to our Terms of Use.


Default
Optimizes layout and formatting for your Kindle model. Choose "Default" if your device is not listed.
No
Attempts to detect and correct common styling problems in the source file. Experimental, so check the output before relying on it.
Enter margin in cm (0 - 10)
No Change
The base font size is the size of the bulk of the text in your document. Set it and we rescale every font size proportionately, so the most common size becomes your chosen value and headings, captions, and other text scale with it. Select "No Change" to keep the original sizes.
Replaces Unicode characters with their closest ASCII equivalents, for readers that cannot display accented or non-Latin text.
Auto
Helpful for eBooks without an encoding declaration or declare an erroneous one. This option will override existing encoding declarations.
Enter Title, maximum 100 characters
Enter Author Name, maximum 100 characters


How to Convert AZW to AZW3?

  1. Click the “Choose Files” button to select your AZW files.
  2. Click the “Convert to AZW3” button to start the conversion.
  3. When the status change to “Done” click the “Download AZW3” button

Easy to Use

Simply upload your AZW files and click the convert button. You can also batch convert AZW to AZW3 format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our AZW to AZW3 Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.


Amazon Kindle eBook (AZW) is the format Amazon introduced with the first Kindle in 2007. It is built directly on Mobipocket, adding Amazon’s own DRM so that purchased books are tied to a customer’s account. Text in an AZW reflows to fit the screen, and the format carries bookmarks, highlights, and reading position, which sync across a reader’s devices.

 

How to open an AZW file?

Books bought from Amazon open on any Kindle e-reader or in the Kindle app on Windows, macOS, Android, and iOS, provided you are signed in to the account that purchased them.

 

Calibre reads and converts DRM-free AZW files and is the usual tool for managing a mixed e-book library. Note that DRM-protected purchases will not open outside Amazon’s apps — that restriction is by design, not a fault with the file. Newer Kindle titles use the AZW3 format instead. You can also convert the file with our AZW to EPUB tool.

 

Developed by: Amazon.com, Inc.

Initial Release: 2007


Kindle Format 8 (AZW3) is Amazon’s successor to the original AZW e-book format, introduced with the Kindle Fire. It replaced the ageing Mobipocket foundation with support for HTML5 and CSS3, which allows embedded fonts, fixed layouts, drop caps, side-bars, and proper tables. That makes AZW3 far better suited to illustrated books, cookbooks, comics, and technical titles than its predecessor.

 

How to open an AZW3 file?

Any Kindle e-reader, or the Kindle app on Windows, macOS, Android, and iOS, opens AZW3. Books purchased from Amazon appear automatically once you sign in.

 

For files you own outright, Calibre reads AZW3 and converts it to EPUB, PDF, or plain text. Copying a DRM-free AZW3 to a Kindle over USB works as well. Titles bought from the Kindle Store carry DRM and will only open in Amazon’s own software. You can also convert the file with our AZW3 to EPUB tool.

 

Developed by: Amazon.com, Inc.

Initial Release: 2011

FreeConvert.com can convert your other files to AZW3 format:

FreeConvert.com can convert your AZW files to these other formats:


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