HirayaAI
Turn a plain text file you have the rights to into a natural-sounding MP3 audiobook — free preview first, one-time payment, no account.
Most text-to-speech tools stop at a few thousand characters — enough for a paragraph, useless for a book. HirayaAI converts entire TXT files: a full manuscript, a long story, compiled notes or a public domain classic, narrated end to end with natural AI voices and delivered as one MP3 audiobook with proper pacing and ID3 tags.
TXT is the simplest format to convert — no layout to fight, just your words. Upload the file, pick a narrator voice and hear a free preview of the opening in seconds, generated from your actual text. If it sounds right, one click converts the whole file, usually in a few minutes.
Convert your TXT — free previewFree preview · $6 per file up to 150,000 words · $10 above · No subscription
No character limit that matters. Pricing is per file by word count, not per character: $6 up to 150,000 words, $10 above. A 90,000-word novel in a .txt file is one upload, one payment, one MP3 — not thirty copy-paste sessions into a TTS box.
Structure is detected from your text. Chapter-style headings (like "Chapter 1") become narrated sections with natural pauses. Text without headings is split into evenly sized sections automatically, so long listens stay comfortable either way.
Also converting other formats? See EPUB to audiobook and PDF to audiobook, or read the full pricing details.