Kindle’s KF8 format, narrated directly. Drop a DRM-free .azw3 or .azw file and start listening.
What happens to your AZW3 file
AZW3 is Amazon’s KF8 container: EPUB-like HTML and CSS inside a MOBI wrapper. Book2Speech extracts the flow, uses the embedded navigation for chapters and reads the text with the same care as an EPUB, including skipping front matter.
Narration built for whole books, not snippets
Generic text-to-speech reads one paragraph at a time. Book2Speech is tuned for long-form listening: chapters are detected and kept in order, front matter (title pages, copyright notices, tables of contents) is recognised so you can start at chapter one, and playback streams ahead so the narrator never stalls mid-sentence.
Pick from 260+ narrators in 40+ languages. Every narrator has a sample, and you can switch voices on a book you have already started.
Listen where you read
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Web: listen in the browser on any laptop or desktop, with read-along highlighting of the sentence being spoken.
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iPhone and iPad: the Book2Speech app plays in the background, supports a sleep timer and speed control, and accepts files from the share sheet or the Files app.
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Your listening position syncs across devices, so a chapter started on the laptop continues on the phone.
Your files, your rights
Upload files you own or have the right to use, up to 5 MB, without DRM. Books stay in your private library until you delete them; deleting your account removes them. Book2Speech does not resell, publish or train voices on your uploads.
Questions people ask
What is the difference between AZW, AZW3 and KFX?
AZW is the original Kindle wrapper around MOBI; AZW3 is the KF8 successor with better layout; KFX is the current format. All three are accepted when DRM-free.
Can Book2Speech remove DRM?
Protected files are rejected with a message asking for a DRM-free copy. Only files you legitimately hold without DRM are narrated.
Is it free?
The Free plan includes 5 minutes of narration to try any file; paid plans add hours of new narration every month (see Plans).