100% Private — No Data Leaves Your Browser

Offline Text to Speech
in Your Browser

Generate natural AI speech from text. No API keys, no signups, no limits. Works offline. Free forever.

Start TTS — Free How It Works
🔒
Private
No data uploaded
♾️
Free
No usage limits
📶
Offline
Works without internet
🗣️
54 Voices
9 languages

How It Works

1

Type or paste

Enter up to 50,000 characters of text

2

Pick a voice

Choose from 54 voices in 9 languages

3

Generate

AI creates speech on your device

4

Download

Save as WAV or MP3, yours forever

Why OfflineTTS?

🔒 Your text never leaves your browser

All processing happens on your device. No servers, no APIs, no data collection. Perfect for confidential documents.

♾️ No API keys, no signups, no limits

Just open and use. No account required. Generate as much speech as you want — it runs on your hardware, not ours.

📶 Works on planes, trains, anywhere

After the one-time model download, everything works offline. No internet connection needed to generate speech.

🗣️ Powered by Kokoro TTS (Apache 2.0)

Open-source AI model with 54 voices across 9 languages. Quality comparable to commercial TTS at zero cost.

54 Voices Across 9 Languages

American & British English, Japanese, Mandarin Chinese, Spanish, French, Hindi, Italian, Brazilian Portuguese

Try All Voices →

Frequently Asked Questions

How does OfflineTTS work?
OfflineTTS runs the Kokoro TTS model (82M parameters) directly in your browser using WebGPU or WebAssembly. Your text never leaves your device — no data is sent to any server.
Is it really free?
Yes, 100% free. The AI model runs on your device, so there are no server costs. The core Kokoro TTS model is Apache 2.0 licensed.
Does it work offline?
After the initial model download (~90MB for Small model, cached in your browser), you can generate speech completely offline — on planes, trains, anywhere.
What voices are available?
54 voices across 9 languages including American English, British English, Japanese, Mandarin Chinese, Spanish, French, Hindi, Italian, and Brazilian Portuguese.
What browsers are supported?
Chrome 113+, Edge 113+, and Safari 17.4+ support WebGPU for fastest performance. All modern browsers support the WASM fallback.

Start Generating Speech Now

No signup required. 100% free. 100% private.

Open TTS Tool