Audiobook Generator
Free AI audiobook generator for chapter-based narration. Compare 54 voice presets, export WAV or MP3, and start without signup.
Try it now — no signup or per-character charge
Browser audio synthesis; text handling and network needs depend on the selected engine and language.
Convert any text into natural-sounding audiobook narration with our free offline audiobook generator. Powered by Kokoro TTS, this tool runs entirely in your browser — no API required, no data uploaded, works offline after initial setup.
Why use OfflineTTS for audiobooks:
- 54 voices across 9 languages — find the perfect narrator voice
- Batch generation — process entire chapters at once
- WAV export — studio-quality audio for post-production
- No per-character charge — the current workflow accepts up to 50,000 characters at a time
- Processing choice — local and network behavior depends on the selected engine and language
Best voices for audiobook narration:
- Heart (A) — warm, engaging storytelling
- Bella (A-) — dynamic and expressive
- Emma (B-) — professional British narration
Audiobook production tips:
- Chapter-by-chapter workflow: Process one chapter at a time, export as WAV, then assemble in your DAW (Audacity, Reaper, Adobe Audition). This gives you control over pacing between chapters.
- Consistent voice quality: Use the same Kokoro model precision (q4 or fp32) throughout your audiobook. Switching precisions mid-project can create noticeable differences.
- Punctuation as direction: Use commas for dramatic pauses, em-dashes for interruptions, and ellipses for trailing thoughts. The model interprets all of these as distinct prosodic cues.
- Dialogue formatting: For multi-character scenes, put each character's dialogue on a separate line. Generate each character's lines with a different voice, then mix them in post.
- Breath and pace: Add extra commas or periods where a human narrator would naturally breathe. Shorter sentences sound more like natural speech than long, breathless passages.
Simply paste your text, choose a voice, and generate. Download as WAV and use in your audio editing software.
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Prepare an Audiobook Manuscript as Chapters, Not One Unchecked Block
OfflineTTS generates narration audio; it does not edit a manuscript, clear publishing rights, assign character performances, or deliver a mastered audiobook package. Remove headers, page numbers, footnotes, and navigation text that should not be spoken. Divide the source into chapters and meaningful scenes, then generate a short pronunciation test before committing to the whole book.
Create a project glossary for character names, invented places, abbreviations, and recurring terms. Use the same engine, voice ID, model precision, and speed for chapters that must match. If a chapter is revised, keep the approved source and settings so only the changed sections need to be regenerated and rechecked.
Audit Audiobook Joins, Rights, and Final Delivery Separately
Listen through every paragraph and automatic chunk boundary for repeated words, clipped consonants, long silence, or a shift in loudness. Export WAV when a separate editor will handle noise, timing, chapter markers, and mastering; MP3 is useful for compact review. The generator does not certify platform loudness, file packaging, or retailer acceptance.
Confirm that you own or license the manuscript and any translation before distribution. Privacy depends on language and engine: Supertonic and English Kokoro text handling can remain local after assets load, while supported non-English Kokoro text uses the OfflineTTS phonemization endpoint. Avoid confidential manuscripts when that network path conflicts with an agreement.
Why Use Our Audiobook Text to Speech
54 Voices, 9 Languages
Find the perfect narrator voice for any genre — warm storytelling, professional narration, dynamic characters.
Manuscript Privacy
Choose a local-processing engine-language path for unpublished work that must not use server phonemization.
Works Offline
Generate audiobook chapters without internet after the initial model download. Perfect for writers on the go.
No Per-Character Costs
No subscription or per-character charge is required; split long manuscripts into reviewed chapter-sized generations.
Popular Use Cases
📖 Self-Published Audiobooks
Convert your manuscript to audiobook without hiring a narrator. Heart (A) is ideal for long-form storytelling.
📝 Serial Fiction
Generate audiobook chapters as you write them. Publish audio versions alongside your text.
🎓 Educational Content
Turn study guides, lecture notes, and training materials into audio for auditory learners.
♿ Accessibility
Convert written content to audio for visually impaired readers, making your work more accessible.
Available Audiobook Voices
| Voice | Type | Best For | Preview |
|---|---|---|---|
| Heart | A-rated | Warm, engaging — the best voice for long-form audiobook narration | |
| Bella | A-rated | Dynamic, expressive — great for character-driven and dramatic content | |
| Emma | B-rated · British | Professional, polished — ideal for formal and literary narration |
How It Works
Paste Text
Enter your audiobook text (up to 50,000 chars)
Choose Voice
Pick from audiobook voices
Generate
AI creates speech on your device
Download
Save as WAV or MP3
Audiobook Text to Speech — FAQ
Yes. OfflineTTS does not charge per character and requires no signup or API key. Audio synthesis runs in your browser with the engine you select.
Offline behavior depends on the selected engine and language. Supertonic, Piper, Kitten, and English Kokoro can synthesize locally after their model files download. Non-English Kokoro uses the OfflineTTS phonemization service before audio is generated on your device.
Audio synthesis runs locally in your browser. Fully local-capable engine and language combinations keep the input on your device after model download. Non-English Kokoro sends plain text to the OfflineTTS phonemization service and receives pronunciation data before local synthesis.
Start Generating Audiobook Speech Now
No signup, no per-character fee, and browser-based audio synthesis.
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