Audiobooks
Turn your text into an audiobook, chapter by chapter
tonvio turns text into an audiobook with AI narration: paste a whole chapter or an entire book — up to 200,000 characters per generation, depending on your plan — pick one of 14,000+ voices and download a ready MP3. The first voiceover is free.
A whole chapter — or the whole book — in one job
No cutting the manuscript into fragments and stitching audio afterwards. One generation takes up to 75,000 characters on Unlimited and up to 200,000 on Unlimited ×2 — enough for several chapters or a complete short book. The narrator keeps one even tone from the first line to the last, and the result is a single ready MP3.
- Up to 200,000 characters per generation, depending on plan
- Even narration with no seams between fragments
- One ready MP3 per job — download and publish
A narrator that fits the genre
The catalog holds 14,000+ realistic voices — male and female, different ages and characters. Filter by gender, age and genre, open the audiobook picks and listen to a live preview before you spend a single character. Next to the counter tonvio shows the estimated length of the future audio — ≈ N min — so you know the scale before you start.
- Filters by gender, age and genre, including audiobook picks
- Live preview for every voice before generating
- Audio length estimate ≈ N min before launch
- Favorites and private notes on voices
A pipeline for the whole book
Queue several chapters at once and let them render one after another — every finished file lands in your history and stays there for 90 days on subscriptions. Batch generation collects chapters into one group: each text keeps its own voice and settings (up to 10 texts per group on Unlimited, 20 on Unlimited ×2), and the whole group downloads in one go. In Chromium browsers you can also pick a local folder — finished audio saves into it automatically.
- Job queue and full generation history in your dashboard
- Batch groups: up to 20 chapters per group, each with its own voice
- The group lives in history as a folder — download everything at once
- Files stored for 90 days on subscriptions
The next level: dialogues by roles
When a book has more than one narrator, switch to character mode: tonvio splits the text into character lines and the author's words, gives each character its own voice and keeps the narration on the base narrator voice. You can reassign any fragment with the mouse and re-generate a single character without touching the rest.
See how it works on the character voice generator page.
Audiobooks are one part of the generator — the full list is on the features page.
How to make an audiobook from text
- 01
Paste the text
A chapter or the whole book — up to 200,000 characters per generation, depending on your plan.
- 02
Pick the narrator
Listen to previews, filter 14,000+ voices by genre and check the ≈ N min length estimate.
- 03
Queue the chapters
Several jobs render one after another; batch groups keep the book together as a folder.
- 04
Download the MP3s
Ready files stay in your history for 90 days on subscriptions.
Text to audiobook — questions and answers
How much text fits into one generation?
Up to 75,000 characters on Unlimited and up to 200,000 on Unlimited ×2 — the same limit applies to voiceover, translation and character mode. That is enough for several chapters or a complete short book in a single job; a longer book naturally splits into a few queued jobs.
How much does an audiobook cost?
On Unlimited ($45/month) characters are unlimited, so a whole book costs the flat monthly price, with 4 jobs running in parallel. Unlimited ×2 ($80/month) doubles that to 8 parallel jobs and a 200,000-character limit. If you voice books occasionally, credit packs start at $1.50 — from $0.0060 per 1,000 characters — and credits never expire. Pay by card or crypto.
One voice for the whole book — or different ones?
Both. A single job is read by one narrator for an even tone. Batch generation gives each chapter or text its own voice and settings within one group. And character mode assigns a separate voice to every character while the narrator reads the author's words.
How long are the finished files stored?
90 days on subscriptions. Every MP3 sits in your generation history; a batch group lives there as a folder you can download in one go. In Chromium browsers you can also set a local folder — finished audio saves into it automatically.
Can I use the audiobook commercially?
Yes — download the ready MP3 and publish it in your projects: YouTube, podcasts, online courses, audiobook releases. Paid plans are built exactly for this kind of production work.
How fast is a book generated?
Generation runs in the cloud: a typical chapter is ready in a few minutes, and the queue keeps the rest rendering while you work. Unlimited runs 4 jobs in parallel, Unlimited ×2 — 8, so a book of many chapters moves through the pipeline quickly. The ≈ N min length estimate is visible before launch.
Voice the first chapter free
Paste a chapter, pick a narrator and hear the result in a few minutes — the first voiceover is free.
More about the service on the home page: AI text to speech online.