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MGToolbox

Book to Audiobook (AI Narrator)

New100% In-Browser

Turn any EPUB or text file into an audiobook narrated by on-device AI — pick chapters, voices and speed. No uploads, no subscription.

100% In-Browser Narration EngineZero Server Uploads

Choose between ⚡ Instant Device Voice (0 MB download, starts speaking in 0.1s using your operating system's built-in speech engine) or 🧠 Neural AI Studio Narrator (Kokoro 82M high-fidelity voice, ~90MB one-time download cached permanently in your browser).

Select a PDF, EPUB, or TXT book

PDF pages, EPUB chapters, or plain text · max 100MB · never uploaded

100% In-BrowserFiles are processed 100% locally
Zero Data Collection
Files are processed 100% locally
Instant Client-Side Speed
Zero network upload delays
Free & Unlimited
No registration or credit card needed

Turn Any EPUB Into an Audiobook — Free On-Device AI Narration

Audiobook subscriptions charge monthly and still don't have your PDFs, fan fictions, or the obscure title you actually want to hear. Cloud "read aloud" converters upload your entire book to their servers and narrate it on machines you pay for by the minute. This tool runs the narration model on YOUR device, so it costs nothing to run and your book never leaves your browser.

How it works: 1) Drop an EPUB (or plain .txt) in — chapters are listed with word counts and honest time estimates. 2) Choose the language, one of the narrator voices, and a speed; pick exactly which chapters you want (the first three are preselected, because a whole book takes real processing time). 3) The Kokoro-82M model (~90MB, downloaded once and cached, works offline afterwards) narrates chapter by chapter with a progress bar, then you download a lossless WAV or a smaller MP3.

The EPUB is parsed locally (zip container + reading order), the text is narrated at ~150 words per minute by default, and the chapters are stitched with natural pauses. Being honest about limits: like all current text-to-speech, the narration is serviceable rather than human — great for articles, drafts, and accessibility; not a substitute for a professionally narrated novel.

Frequently Asked Questions

Everything you need to know about using Book to Audiobook (AI Narrator) safely and efficiently.

No. The EPUB is parsed in your browser and the narration model runs on your hardware. The only network traffic is the one-time model download from its public repository to your browser cache.
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