tts-sidecar is an open-source command-line tool for local text-to-speech and voice cloning, supporting multiple languages and offline operation. It is ideal for developers and researchers who require privacy and control over TTS and voice synthesis workflows.
In the Voice, TTS & speech space, tts-sidecar takes a focused approach. It enables users to perform local, offline voice cloning and text-to-speech conversion without relying on cloud services. tts-sidecar is an open-source project aimed at developers and researchers needing local TTS and voice cloning. The project is open source (GPL-3.0). It runs on the command line.
Cristian Rojas builds and maintains tts-sidecar, and the product first shipped in 2026. The project is developed in the open on GitHub with 122 commits in the last 90 days. Across PulseGate's embedding index, tts-sidecar has few near neighbours, marking it as relatively distinct. Among its 5 catalogued features are voice cloning, text-to-speech, and offline mode.
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