Coqui

Coqui TTS is a well-regarded open-source text-to-speech library that gives developers and researchers serious speech synthesis for free — including XTTS, a capable voice-cloning model. It is important to be upfront: Coqui the company shut down, so this is not a supported commercial product. But the library remains available, widely used, and community-supported, and for anyone who wants powerful, self-hosted, free TTS, it is still a genuinely valuable project.

What is Coqui?

Coqui TTS is an open-source deep-learning library for advanced text-to-speech generation, offering pretrained models in over 1,100 languages alongside tools for training and fine-tuning. Its features include an extensive model library, multiple TTS architectures (such as Tacotron, Glow-TTS, FastSpeech, and VITS) plus specialized models including XTTS (supporting voice cloning across many languages) and Bark, advanced capabilities like multi-speaker support, voice cloning, voice conversion, and speaker embeddings, flexible training with tools for dataset curation and fine-tuning, and models tested in research and production. Importantly, Coqui.ai — the company behind it — shut down, so there is no commercial support or hosted service; however, the project remains available as open-source software on GitHub, with a substantial release history and continued community use. It serves researchers, developers needing speech synthesis, teams requiring multilingual or multi-speaker capabilities, and practitioners exploring voice cloning.

What it does well

• Powerful and free: serious open-source TTS.
• Huge coverage: pretrained models across 1,100+ languages.
• Advanced features: XTTS voice cloning and voice conversion.
• Self-hosted: full control, no vendor dependency.

Who it is for

Coqui TTS fits developers, researchers, and technical teams who want powerful, free, self-hosted text-to-speech — including voice cloning via XTTS and multilingual, multi-speaker synthesis — and who are comfortable running open-source ML themselves. The important caveat is support: Coqui the company shut down, so there is no commercial backing, hosted service, or guaranteed maintenance, and teams should weigh that for production use. Voice cloning must also be used ethically and with consent. For self-hosted, free, capable TTS with those caveats understood, Coqui TTS remains valuable.

Things to keep in mind

• Coqui the company shut down — no commercial support or hosted service.
• It requires running open-source ML yourself (and capable hardware).
• Voice cloning must be used ethically and with proper consent.

Our verdict

Coqui TTS remains a genuinely valuable open-source project, offering powerful, free, self-hosted text-to-speech with pretrained models across 1,100-plus languages, multiple architectures, and advanced capabilities including XTTS voice cloning, multi-speaker synthesis, and voice conversion. The essential caveat is that Coqui the company shut down, so there is no commercial support, hosted service, or guaranteed maintenance — teams should weigh that before relying on it in production, and voice cloning demands ethical use and consent. For developers and researchers wanting capable, free, self-hosted TTS with eyes open, Coqui TTS is still worthwhile.

Frequently asked questions

What is Coqui TTS?

Coqui TTS is an open-source text-to-speech library offering pretrained models across 1,100+ languages, multiple architectures, and voice cloning via XTTS.

Is Coqui still active?

Coqui the company shut down, so there is no commercial support or hosted service; the open-source library remains available on GitHub and community-used.

Is Coqui TTS free?

Yes, Coqui TTS is free and open-source, self-hosted on your own hardware.

What is XTTS?

XTTS is Coqui’s notable model supporting voice cloning across many languages, alongside multi-speaker synthesis and voice conversion — to be used ethically and with consent.