HTML to AZW3 Converter

Select files for conversion or just drag and drop them to the upload area

How to convert HTML files to AZW3 online?

Step 1.

Upload HTML-file

Click "Choose File" button to select a html file on your computer. HTML file size can be up to 50 Mb.
Step 2.

Convert HTML to AZW3

Click "Convert" button to start conversion.
Step 3.

Download your AZW3

When the conversion process is complete, you can download the AZW3 file.

Information about HTML and AZW3 file formats

Name HTML AZW3
Full name HTML - Hypertext Markup Language Amazon KF8 eBook File
File extension .html, .htm .azw3
MIME type text/html application/octet-stream
Developed by W3C & WHATWG Amazon
Type of format Document file format
Description HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone technology, used by most websites to create visually engaging web pages, user interfaces for web applications, and user interfaces for many mobile applications. AZW3 - Kindle Format 8 (KF8) is Amazon's newer version of AZW. It supports HTML5 and CSS3 which were not supported through the standard AZW format. It has a number of other formatting options and is used by Amazon for all new Amazon eBooks. It is supported by fourth-generation Kindle devices running firmware version 4.1.0 or later and the Kindle Fire device.
Technical details HTML elements form the building blocks of all websites. HTML allows images and objects to be embedded and can be used to create interactive forms. It provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items. KF8 (also called AZW3) is essentially a compiled ePub that has utlises a Palm database and Amazon's DRM scheme. It targets ePub 3 version support but existing ePub can also be used. The internal format has been decoded using mobi_unpack. The basic format remains as a PDB file similar in structure to a MOBI. More oftent than not a KF8 file will contain both a MOBI file at the beginning and the newer KF8 version of ePub later.
File conversion HTML conversion AZW3 conversion
Associated programs Mozilla Firefox, Opera, Google Chrome, Internet Explorer. Kindle Fire, Kindle Reader, Kindle for Android, Kindle for iOS
Wiki https://en.wikipedia.org/wiki/HTML https://en.wikipedia.org/wiki/Kindle_File_Format
HTML to AZW3 conversion quality rating:
4.8 (1550 votes)
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