EPUB to AZW3 Converter

Convert EPUB to AZW3 online, for free.



Choose Files
  • From Device
  • From Dropbox
  • From Google Drive
  • From OneDrive
  • From Url
Max file size 1GB. Upgrade for more Sign Up for more

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 EPUB to AZW3?

  1. Click the “Choose Files” button to select your EPUB 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 EPUB files and click the convert button. You can also batch convert EPUB 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 EPUB 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.

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

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


Your Data, Our Priority

At FreeConvert, we go beyond just converting files—we protect them. Our robust security framework ensures that your data is always safe, whether you're converting an image, video, or document. With advanced encryption, secure data centers, and vigilant monitoring, we've covered every aspect of your data's safety.

Learn more about our commitment to security
  • SSL/TLS Encryption SSL/TLS
    Encryption
  • Secured Data Centers Secured Data
    Centers
  • Access Control and Authentication Access Control and
    Authentication

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