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Supertonic

Lightning-fast, on-device, multilingual TTS running natively via ONNX.

★ 13,564 GitHub MIT ttstext-to-speechonnxmultilingualon-devicespeech-synthesiswebgpu Speech & Audio

Overview

Supertonic is a lightning-fast, on-device, multilingual text-to-speech engine that runs natively via ONNX Runtime. It supports 15+ languages across Python, Node.js, Rust, C++, Java, C#, Go, Swift, Flutter, and WebGPU — with no cloud dependencies, no GPU required, and sub-100ms latency on standard CPUs. Ideal for voice assistants, accessibility tools, language learning apps, and edge deployments where privacy and speed matter. MIT licensed.

Requirements

Min vCPU
2
Min RAM
4096 MB
Min Disk
10 GB
Rec vCPU
4
Rec RAM
8192 MB
Rec Disk
20 GB

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Affiliate disclosure

Docker Compose

# Generated by Run This Ai — docker-compose.yml
services:
  supertonic:
    image: dbodyas/supertonic:latest
    restart: unless-stopped
    ports:
      - 8080:8080
    volumes:
      - ./data/supertonic:/data

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Guides & articles

How to Deploy Supertonic with Docker: A Step-by-Step Tutorial

Learn how to run Supertonic, the on-device multilingual TTS engine, in Docker — from pulling the image to synthesizing your first audio in minutes.

Jul 31, 2026

Supertonic: The Complete Guide to On-Device Multilingual TTS

Supertonic brings lightning-fast, privacy-first, multilingual text-to-speech to your own hardware via ONNX Runtime. 13.5K stars, MIT licensed, 15+ languages.

Jul 31, 2026