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AZW3, also known as Kindle Format 8, is a newer eBook format from Amazon. It supports HTML5 and CSS styling, offering enhanced layout and formatting options for Kindle books. AZW3 files can contain both older MOBI content and newer EPUB-like structures for broader compatibility.
EPUB is a widely used eBook format that supports reflowable content, meaning the text adjusts to fit different screen sizes. It allows for images, CSS styling, interactivity, and more. EPUB is compatible with most eReaders, except Amazon Kindle (which uses AZW).
Convert your .azw3 files to .epub right in your browser — no downloads, no installs. Everything happens securely in the cloud.
We never store your files permanently. Only you can access them, and they’re automatically deleted from our servers within 2 hours.
Turn your AZW3 files into EPUB in just a couple of clicks. No registration, no limits — and it’s 100% free.