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LRF is a proprietary eBook format developed by Sony for its older Reader devices. It supports text and images and was part of Sony’s BBeB (BroadBand eBook) platform. LRF is no longer actively used and has been largely replaced by EPUB.
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.
Convert your .lrf files to .azw3 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 LRF files into AZW3 in just a couple of clicks. No registration, no limits — and it’s 100% free.