IndexTTS

Free

A controllable zero-shot TTS from Bilibili.

Open-SourceVoice CloningIndustrial

Overview

IndexTTS is a GPT-style, industrial-grade zero-shot TTS from Bilibili with strong Chinese and English support. It adds controllable pronunciation through pinyin correction and punctuation-based pausing. Later versions improve emotional expressiveness and duration control for production use.

What makes IndexTTS special?

Focus: Industrial zero-shot synthesis.
Availability: Free & Open-Source.
Use cases: Production cloning, dubbing, and Chinese/English voices.

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