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Browser conversion not available for .azw / .azw3
AZW is Amazon's proprietary Kindle format and cannot be decoded in a web browser. Use one of the free methods below.
Free Ways to Convert
Calibre (Windows / Mac / Linux)
RecommendedDownload Calibre from calibre-ebook.com. Add your .azw or .azw3 file to the library, right-click → Convert books → Convert individually. Set Output format to EPUB → OK.
Re-download from Amazon as EPUB
No softwareFor books bought on Amazon after ~2022: sign in to amazon.com → Manage Your Content and Devices → find the book → Download & Transfer via USB → select EPUB option (if available).
Check the publisher's website
DRM-freeMany publishers sell DRM-free EPUB versions directly. If you bought the book on Amazon, the publisher may offer a DRM-free EPUB on their own site or via Smashwords / Kobo.
Once you have an EPUB file…