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PDB is a file format used by Palm OS devices to store databases, eBooks, and applications. It can contain structured data or documents in proprietary formats like PalmDOC. PDB files are now mostly obsolete but may still be found in digital archives.
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 .pdb 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 PDB files into AZW3 in just a couple of clicks. No registration, no limits — and it’s 100% free.