AudiFlo
Free AI audiobook app with character voices for any book.
What it does
AudiFlo is a free audiobook app and top TTS player for EPUB, PDF, DOCX, TXT, and web novels, with character voices, multilingual playback, and offline listening. Assign unique AI voices to every character — hero, villain, narrator — and turn any book into a full-cast audio experience. No subscription. No limits. Privacy-first and offline-ready. Built for web novel fans, light novel readers, and anyone who wants their library to come alive.
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Hey HN. I’m Ivan, hacker from Ukraine. For about a year, I was working on Listenly — an app to listen to text content with OpenAI's natural-sounding text-to-speech model. At some moment, I realized that it would be cool to take all the public domain e-books and create audio versions for them. So I did it... kind-of. It would cost an immense amount of money to generate all the audio right away (OpenAI TTS costs approximately $0.84/hour of audio; 11labs, for comparison, is 10 times more expensive). So, I took a more gradual approach. I took all the metadata from the Project Gutenberg…
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