Convert EPUB to AZW3 online for free
1: Choose multiple local EPUB files or enter the URL of an online EPUB file. 2: Choose "AZW3" as target format and set options (optional). 3: Click the "START CONVERSION" button to convert EPUB files to AZW3 online.
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File extension: .epub
EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers. It is a free and open standard published by the International Digital Publishing Forum (IDPF). The term is short for electronic publication and is sometimes styled ePub.
Kindle Format 8
File extension: .azw,.azw3,.azw4
Kindle devices are designed to use Amazon's own e-book formats: AZW. In late 2011, the Kindle Fire introduced "Kindle Format 8" (KF8), also known as AZW3 file format. AZW3 supports a subset of HTML5 and CSS3 features, while acting as a container for a backwards-compatible MOBI content document.