chatterbox-tts-api
Text to Speech
v1.0.1
Chatterbox TTS API is a FastAPI-powered REST server that provides an OpenAI-compatible text-to-speech endpoint with voice cloning capabilities.1y agoAGPL-3.0No DockerDemoModerate
Self-hosted alternatives to OpenAI TTS API
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Projects
Also in Text to Speech
Not listed as OpenAI TTS API alternatives, but they cover the same ground and are worth a look.
openai-edge-ttsA self-hosted, open-source text-to-speech API server that mimics OpenAI's /v1/audio/speech endpoint and synthesizes audio for free via Microsoft Edge's TTS voices.
kokoro-webKokoro Web is a self-hosted, open-source AI voice generator with OpenAI-compatible API and browser UI for natural speech in multiple languages.
unspeechunSpeech is a self-hosted, open-source TTS proxy with an OpenAI-compatible API for multiple cloud providers like ElevenLabs, Azure, and Deepgram.
Kokoro FastAPIA self-hosted, open-source FastAPI wrapper for the Kokoro-82M speech model with an OpenAI-compatible endpoint, multi-speaker mixing, SSML, timestamps and a web player.
OmniVoice-StudioThis self-hosted, open-source ElevenLabs alternative clones and designs voices, dubs video and builds audiobooks in 646 languages, fully local on desktop or Docker.
Fish SpeechSelf-hosted text-to-speech toolkit with voice cloning, multi-speaker scripts and inline emotion tags, plus a TTS API server and WebUI in CUDA or CPU Docker images.
About these OpenAI TTS API alternatives
1 open-source, self-hosted alternatives to OpenAI TTS API are listed here, ranked by popularity, maintenance and documentation.
- Highest rated
- chatterbox-tts-api (694 GitHub stars, AGPL-3.0 license, written in Python)
- Recently updated
- chatterbox-tts-api v1.0.1 on 2025-06-03
OpenAI TTS API alternatives compared
| Project | License | Language | Stars | Docker | Setup | Latest release | Score |
|---|---|---|---|---|---|---|---|
| chatterbox-tts-api | AGPL-3.0 | Python | 694 | — | Moderate | v1.0.1 | 53 |