Voicebox

What is Voicebox?

Voicebox is a local-first voice cloning studio with DAW-like features for professional voice synthesis. Think of it as a local, free and open-source alternative to ElevenLabs — download models, clone voices, and generate speech entirely on your machine.

Unlike cloud services that lock your voice data behind subscriptions, Voicebox gives you:

Complete privacy — models and voice data stay on your machine
Professional tools — multi-track timeline editor, audio trimming, conversation mixing
Model flexibility — currently powered by Qwen3-TTS, with support for XTTS, Bark, and other models coming soon
API-first — use the desktop app or integrate voice synthesis into your own projects
Native performance — built with Tauri (Rust), not Electron
Super fast on Mac — MLX backend with native Metal acceleration for 4-5x faster inference on Apple Silicon

Download a voice model, clone any voice from a few seconds of audio, and compose multi-voice projects with studio-grade editing tools. No Python install required, no cloud dependency, no limits.

Download

Voicebox is available now for macOS and Windows.

Platform	Download
macOS (Apple Silicon)	Voicebox_aarch64.app.tar.gz
macOS (Intel)	Voicebox_x64.app.tar.gz
Windows (MSI)	Latest Windows MSI
Windows (Setup)	Latest Windows Setup

❝

Linux builds coming soon — Currently blocked by GitHub runner disk space limitations.

Features

Voice Cloning with Qwen3-TTS

Powered by Alibaba's Qwen3-TTS — a breakthrough model that achieves near-perfect voice cloning from just a few seconds of audio.

Instant cloning — Upload a sample, get a voice profile
High fidelity — Natural prosody, emotion, and cadence
Multi-language — English, Chinese, and more coming
Lightning fast on Mac — MLX backend leverages Apple Silicon's Neural Engine for super fast generation

Voice Profile Management

Create profiles from audio files or record directly in-app
Import/Export profiles to share or backup
Multi-sample support — combine multiple samples for higher quality cloning
Organize with descriptions and language tags

Speech Generation

Text-to-speech with any cloned voice
Batch generation for long-form content
Smart caching — regenerate instantly with voice prompt caching

Stories Editor

Create multi-voice narratives, podcasts, and conversations with a timeline-based editor.

Multi-track composition — arrange multiple voice tracks in a single project
Inline audio editing — trim and split clips directly in the timeline
Auto-playback — preview stories with synchronized playhead
Voice mixing — build conversations with multiple participants

Recording & Transcription

In-app recording with waveform visualization
System audio capture — record desktop audio on macOS and Windows
Automatic transcription powered by Whisper
Export recordings in multiple formats

Generation History

Full history of all generated audio
Search & filter by voice, text, or date
Re-generate any past generation with one click

Flexible Deployment

Local mode — Everything runs on your machine
Remote mode — Connect to a GPU server on your network
One-click server — Turn any machine into a Voicebox server

API

Voicebox exposes a full REST API, so you can integrate voice synthesis into your own apps.

# Generate speech
curl -X POST http://localhost:8000/generate \
  -H "Content-Type: application/json" \
  -d '{"text": "Hello world", "profile_id": "abc123", "language": "en"}'

# List voice profiles
curl http://localhost:8000/profiles

# Create a profile
curl -X POST http://localhost:8000/profiles \
  -H "Content-Type: application/json" \
  -d '{"name": "My Voice", "language": "en"}'

Use cases:

Game dialogue systems
Podcast/video production pipelines
Accessibility tools
Voice assistants
Content creation automation

Full API documentation available at http://localhost:8000/docs when running.

Tech Stack

Layer	Technology
Desktop App	Tauri (Rust)
Frontend	React, TypeScript, Tailwind CSS
State	Zustand, React Query
Backend	FastAPI (Python)
Voice Model	Qwen3-TTS (PyTorch or MLX)
Transcription	Whisper (PyTorch or MLX)
Inference Engine	MLX (Apple Silicon) / PyTorch (Windows/Linux/Intel)
Database	SQLite
Audio	WaveSurfer.js, librosa

Why this stack?

Tauri over Electron — 10x smaller bundle, native performance, lower memory
FastAPI — Async Python with automatic OpenAPI schema generation
Type-safe end-to-end — Generated TypeScript client from OpenAPI spec

Roadmap

Voicebox is the beginning of something bigger. Here's what's coming:

Coming Soon

Feature	Description
Real-time Synthesis	Stream audio as it generates, word by word
Conversation Mode	Multi-speaker dialogues with automatic turn-taking
Voice Effects	Pitch shift, reverb, M3GAN-style effects
Timeline Editor	Audio studio with word-level precision editing
More Models	XTTS, Bark, and other open-source voice models

Future Vision

Voice Design — Create new voices from text descriptions
Project System — Save and load complex multi-voice sessions
Plugin Architecture — Extend with custom models and effects
Mobile Companion — Control Voicebox from your phone

Voicebox aims to be the one-stop shop for everything voice — cloning, synthesis, editing, effects, and beyond.

Development

See CONTRIBUTING.md for detailed setup and contribution guidelines.

Using the Makefile (recommended): Run make help to see all available commands for setup, development, building, and testing.

Quick Start

With Makefile (Unix/macOS/Linux):

# Clone the repo
git clone https://github.com/jamiepine/voicebox.git
cd voicebox

# Setup everything
make setup

# Start development
make dev

Manual setup (all platforms):

# Clone the repo
git clone https://github.com/jamiepine/voicebox.git
cd voicebox

# Install dependencies
bun install

# Install Python dependencies
cd backend && pip install -r requirements.txt && cd ..

# Start development
bun run dev

Prerequisites: Bun, Rust, Python 3.11+. XCode on macOS.

Performance:

Apple Silicon (M1/M2/M3): Uses MLX backend with native Metal acceleration for 4-5x faster inference
Windows/Linux/Intel Mac: Uses PyTorch backend (CUDA GPU recommended, CPU supported but slower)

Project Structure

voicebox/
├── app/              # Shared React frontend
├── tauri/            # Desktop app (Tauri + Rust)
├── web/              # Web deployment
├── backend/          # Python FastAPI server
├── landing/          # Marketing website
└── scripts/          # Build & release scripts

Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Fork the repo
Create a feature branch
Make your changes
Submit a PR

Security

Found a security vulnerability? Please report it responsibly. See SECURITY.md for details.