BlueTTS

V2 Zero-shot voice cloning Open source (MIT)

Human-sounding TTS.
6 languages.

Hebrew, English, Russian, Spanish, Italian & German all sounding natural and native. Try the live demo or plug in through the API.

Hear Samples
1500× real-time on RTX 3090
70× real-time on Apple M4
35× real-time on Ryzen 9 7950X

Use It From Your Chat App

Send text, get natural speech back — no signup, no install. BlueTTS runs as a bot on WhatsApp and Telegram.

— people served
— messages voiced
— active in the last 24h

Live counter

WhatsApp +1 (208) 247-9465
Open chat →
Telegram @bluettsbot
Open chat →

Try It Live

Type in any supported language and press Speak. Hebrew, English, Russian, Spanish, Italian or German.

try
0 characters

Demo runs on a shared CPU server. Model and code are open source on GitHub.

BlueTTS V2 is Here

A major leap forward. Here's what's new:

  • 🔵
    Zero-shot voice conversionClone any voice on the fly — no fine-tuning required.
  • 🔵
    Significantly improved qualityMore natural prosody, cleaner audio, better expressiveness.
  • 🔵
    Light-speed inferenceFaster generation across every device we benchmarked.
  • 🔵
    Simpler architectureStreamlined model — easier to deploy, easier to extend.
🤗 Try BlueV2 Space Same GitHub Repo

Hear It in 6 Languages

The same sentence spoken naturally in each language.

🇺🇸
English EN

Great ideas become real when a small team keeps building every single day.

🇮🇱
Hebrew HE

הכוח לשנות מתחיל ברגע שבו אתה מאמין שזה אפשרי!

🇷🇺
Russian RU

Сила меняться начинается в тот момент, когда ты веришь, что это возможно!

🇪🇸
Spanish ES

¡El poder de cambiar comienza en el momento en que crees que es posible!

🇮🇹
Italian IT

Il potere di cambiare inizia nel momento in cui credi che sia possibile!

🇩🇪
German DE

Die Kraft zur Veränderung beginnt in dem Moment, in dem du glaubst, dass es möglich ist!

See It in Action

Watch BlueTTS synthesize natural speech across multiple languages in real time.

BlueTTS

Multilingual synthesis demo

Desktop app

MamboTTS — BlueTTS on Your Own Machine

A native desktop app that runs BlueTTS on your own machine. Type a line, pick a voice, and generate high-fidelity Hebrew or English speech — entirely offline.

  • Fully offline after the model downloads — nothing leaves your machine
  • Runs fast on an ordinary CPU, no GPU required
  • Built-in Rotem & Roi voices, instant preview, one-click WAV export
  • Hebrew diacritics & IPA editor for fine pronunciation control
  • CLI, local HTTP API with Swagger docs, and agent-ready /skill instructions
Download MamboTTS Source on GitHub

macOS · Windows · Linux — free and open source (MIT).

MamboTTS desktop app: Hebrew text in the studio editor, the Rotem and Roi voices in the sidebar, and a generated audio preview.

BlueTTS is Open Source

Try it in the HuggingFace Space. Clone the code from GitHub. Build something cool.

GitHub Repo 🤗 HuggingFace Space (V2)