Precise Duration & Emotional Zero-Shot TTS
Make voices that hit the right timing and feeling What is IndexTTS-2 Online? IndexTTS-2 Online is a web-based text-to-speech studio built on top of the open-source IndexTTS-2 model — a breakthrough in emotionally expressive, duration-controlled autoregressive zero-shot TTS. Instead of wrestling with research code and GPUs, you get a clean interface where you simply type, choose a voice, and generate speech.
With just a short voice reference, IndexTTS-2 can clone timbre, follow your target emotion, and keep speech timing precisely on beat. Whether you are dubbing videos, recording audiobooks, creating character voices for games, or localizing content across languages, IndexTTS-2 Online gives you natural, expressive speech that actually sounds like a real person.
Key capabilities • Emotionally expressive voices – Preserve subtle prosody, intensity, and style, not just plain “happy / sad” labels. • Precise duration control – Adjust speech length to match video cuts, captions, or lip-sync windows. • Zero-shot voice cloning – Upload or record a short reference and generate speech in that voice, without training. • Multilingual support – Optimized for Chinese, English and Japanese, with strong cross-lingual performance. • Creator-friendly workflow – Simple web UI, presets for common use cases, and a Pro tier that unlocks custom voice reference uploads.
IndexTTS-2 Online is designed for creators, indie developers and small teams who want cutting-edge speech synthesis quality without building their own TTS infrastructure.
