Bettertts Offline Natural

BetterTTS turns your browser into an audiobook player — powered by AI voices trained exclusively on public domain audio, running entirely on your own computer.

🔒 ALWAYS AVAILABLE, NO CLOUD REQUIRED
Cloud-based TTS (text-to-speech) services fail when servers go down — and lately, they go down a lot. BetterTTS runs 100% locally on your machine. No API calls, no server dependencies, no surprise outages. As long as your computer is running, BetterTTS works. Period.

📚 READ ENTIRE BOOKS WITH ONE CLICK
Start reading on any chapter and walk away. With Auto-Next, BetterTTS automatically navigates to the next page when it finishes, reading through entire textbooks, web novels, or documentation without interruption. Do your chores, exercise, or relax while your computer reads for you.

🎙️ ETHICALLY TRAINED AI VOICES
Unlike competitors that train on scraped or unlicensed voice recordings, BetterTTS uses the Kokoro TTS model — trained purely on public domain audiobooks. Natural, expressive speech without ethical concerns.

YOUR COMPUTER, YOUR READER
You paid for your hardware. Use it. BetterTTS leverages your PC's processing power to deliver fast, private, reliable text to speech that doesn't depend on anyone else's servers staying online.

Perfect for students, researchers, language learners, or anyone who's tired of cloud services failing at the worst possible moment.

Features

Natural AI Voices — Powered by Kokoro, a state-of-the-art neural TTS engine with lifelike speech

Auto-Next Page Navigation — Reads through entire books automatically, navigating pages without user input

Multi-Language Support — Supports English (US and UK), Brazilian Portuguese, Chinese, French, Hindi, Italian, Japanese, and Spanish — more coming soon!

Adjustable Playback Speed — Speed up or slow down narration from 0.5x to 2x

Word-by-Word Highlighting — Follow along as text is read with real-time visual highlighting

PDF Support — Read PDF documents directly in your browser

Read Selection — Highlight any text and read just that portion

Customizable Highlight Colors — Choose your preferred highlight color for comfortable reading

100% Offline — All processing happens locally — your text never leaves your computer

Ethically Sourced AI — Trained purely on public domain audio, not scraped copyrighted material