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 397 entries on Flocci AI Tools with no upgrade path built in.
IndexTTS needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on self-hosting.
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.
Copilot Audio Expressions is the closest free alternative: it sits in the same AI Voice & Speech sub-category and is free. Kokoro Web, Zonos and Chatterbox (Resemble AI) also start free. The full list is on the alternatives page.
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