index-tts
An Industrial-Level Controllable and Efficient Zero-Shot Text-To-Speech System
Generate realistic speech from text with precise control over timing and emotions for applications like video dubbing.
From the README
git clone https://github.com/index-tts/index-tts.git && cd index-tts
- Improved controllability of Chinese Pinyin, English CMU phonemes and Japanese Kana.
- Speaking speed control via durationfactor (0.5x–2.0x duration).
- Production deployment supported via vLLM.
Excerpts from the project README on GitHub. Copyright and licensing remain with the respective authors.
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index-tts has 22k stars on GitHub. It has been forked 2.7k times. index-tts is written mainly in Python. It has been in active development since 2025. Its main topics are bigvgan, cross-lingual, indextts, text-to-speech.
Compare with the paid tools it replacesWhat is index-tts?
An Industrial-Level Controllable and Efficient Zero-Shot Text-To-Speech System
Is index-tts open source?
index-tts is an open-source project.
Is index-tts free?
Yes. index-tts is free and open source — you can use, modify and self-host it.
What language is index-tts written in?
index-tts is written mainly in Python.
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