voicebox

Local-first AI voice studio: clone voices, generate speech via 7 TTS engines in 23 languages, dictate system-wide with Whisper, and give any MCP-aware agent a cloned voice. Tauri, MLX/CUDA.

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Curator's take

The whole voice I/O loop in one local app — ElevenLabs (output) plus WisprFlow (input) territory without the cloud. Zero-shot cloning, 50+ preset voices, paralinguistic tags via Chatterbox Turbo, a stories/timeline editor, and a global dictation hotkey with local-LLM cleanup. The agent hook is the standout: one `voicebox.speak` MCP tool call and Claude Code or Cursor talks in a voice you cloned, with per-agent voice binding and an always-visible on-screen pill so no agent speaks silently; a REST /speak covers non-MCP harnesses. NOT a library — it's a desktop product (Tauri): Linux is build-from-source, models are hefty downloads, and engine quality varies (only Turbo interprets [laugh]-style tags; others read them literally).

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README.md

Voicebox

The open-source AI voice studio.
Clone any voice. Generate speech. Dictate into any app. Talk to agents in voices you own.
The full voice I/O stack, running locally on your machine.

voicebox.sh • Docs • Download • Features • API • Troubleshooting

Click the image above to watch the demo video on voicebox.sh

Voicebox Screenshot 2

Voicebox Screenshot 3

What is Voicebox?

Voicebox is a local-first AI voice studio — a free and open-source alternative to ElevenLabs and WisprFlow in one app. Clone voices from a few seconds of audio, generate speech in 23 languages across 7 TTS engines, dictate into any text field with a global hotkey, and give any MCP-aware AI agent a voice of your choosing.

The two cloud incumbents sit on opposite halves of the voice I/O loop — ElevenLabs on output, WisprFlow on input. Voicebox does both, bridges them with a bundled local LLM for refinement and per-profile personas, and runs the whole thing on your machine.

Complete privacy — models, voice data, and captures never leave your machine
7 TTS engines — Qwen3-TTS, Qwen CustomVoice, LuxTTS, Chatterbox Multilingual, Chatterbox Turbo, HumeAI TADA, and Kokoro
Voice cloning and preset voices — zero-shot cloning from a reference sample, or 50+ curated preset voices via Kokoro and Qwen CustomVoice
23 languages — from English to Arabic, Japanese, Hindi, Swahili, and more
Post-processing effects — pitch shift, reverb, delay, chorus, compression, and filters
Expressive speech — paralinguistic tags like [laugh], [sigh], [gasp] via Chatterbox Turbo; natural-language delivery control via Qwen CustomVoice
Unlimited length — auto-chunking with crossfade for scripts, articles, and chapters
Stories editor — multi-track timeline for conversations, podcasts, and narratives
Voice input — global dictation hotkey with push-to-talk and toggle modes, accessibility-verifie

Continue your stack

What teams reach for next — and why each earns a place beside voicebox. Ranked by curator confidence.

Alternative to See all + compare →

pocket-tts

Kyutai's 100M-parameter CPU-only TTS — streaming audio in ~200ms, ~6× real-time on two laptop cores, voice cloning, six languages. pip install and it talks.

Why it fitsSame say-it-locally job, different shape: pocket-tts is a pip-installable 100M CPU library for embedding speech in your own code; Voicebox is a full desktop studio with cloning, dictation, effects and MCP agent integration.

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LuxTTS

Lightweight voice-cloning TTS — 48kHz speech at 150x realtime, fits in 1GB VRAM and runs on CPU or MPS. SOTA cloning from a ~3s reference sample, rivaling models 10x larger.

Why it fitsLuxTTS ships inside Voicebox as one of its seven selectable TTS engines — the lightweight English option (~1GB VRAM, 150x realtime on CPU).