Bilibili's zero-shot TTS with precise duration control and emotion control (IndexTTS2)
IndexTTS is listed under AI Voice & Speech, in the Content & Media Generation category on Flocci AI Tools. Bilibili's zero-shot TTS with precise duration control and emotion control (IndexTTS2). It is free, with no paid plan attached, and it lives at github.com.
IndexTTS is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 399 entries on Flocci AI Tools with no upgrade path built in.
IndexTTS does 3 things the catalog singles out: Bilibili's zero-shot tts with precise duration control and emotion control (indextts2); strong chinese pinyin correction plus english; open weights and demo on hugging face.
Chatterbox (Resemble AI) is the closest free alternative: it sits in the same AI Voice & Speech sub-category and is free. Copilot Audio Expressions, CosyVoice and F5-TTS also start free. The full list is on the alternatives page.
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