Index Tts
IndexTTS is a zero-shot text-to-speech system that clones a voice from a single reference audio clip. The latest release, IndexTTS-2.5, supports Chinese, English, Japanese, Spanish and Arabic, with fine-grained emotion control, speaking speed control, pronunciation control (Pinyin / CMU phonemes / Japanese Kana), and faster inference than IndexTTS-2. Example audio files are downloaded on demand from HuggingFace/ModelScope the first time the WebUI starts, so Git LFS is no longer required. We use uv to manage the project's dependency environment. It is required for a reliable installation:
View Index Tts on GitHub
IndexTTS is a zero-shot text-to-speech system that clones a voice from a single reference audio clip. The latest release, IndexTTS-2.5, supports Chinese, English, Japanese, Spanish and Arabic, with fine-grained emotion control, speaking speed control, pronunciation control (Pinyin / CMU phonemes / Japanese Kana), and faster inference than IndexTTS-2.
Example audio files are downloaded on demand from HuggingFace/ModelScope the first time the WebUI starts, so Git LFS is no longer required.
We use uv to manage the project's dependency environment. It is required for a reliable installation:
Index Tts at a glance
| Stars | 24k |
|---|---|
| Forks | 2.9k |
| Language | Python |
| License | Other |
| Last update | 2026-08-18 |
| Contributors | 30 |
How to install Index Tts
bash git clone https://github.com/index-tts/index-tts.git && cd index-tts
Where Index Tts is listed
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