Supertonic
by supertone-inc
SuperTonic: Cross-Platform Native TTS via ONNX Runtime
High-performance text-to-speech engine that runs locally on any device with native ONNX support across 10+ programming languages.
- 2,513+ GitHub stars
- Built with C++
- Native ONNX runtime execution for maximum performance across platforms
- MIT License license
About This Project
SuperTonic delivers production-ready text-to-speech capabilities that execute entirely on-device, eliminating cloud dependencies and latency issues. Built on ONNX runtime, it provides consistent voice synthesis across mobile, desktop, and embedded platforms without requiring internet connectivity.
The library stands out for its exceptional performance characteristics and minimal resource footprint. Unlike traditional TTS solutions that rely on server-side processing, SuperTonic processes speech synthesis locally with optimized neural models that maintain quality while running efficiently on resource-constrained devices.
With native bindings for over 10 programming languages including Python, JavaScript, Rust, Swift, and Java, developers can integrate natural-sounding speech into applications using their preferred technology stack. The multilingual support enables global applications without managing separate engines for different languages.
Whether you're building voice assistants, accessibility tools, or interactive applications, SuperTonic provides the speed and flexibility needed for real-time speech synthesis without compromising user privacy or requiring constant network access.
Key Features
- Native ONNX runtime execution for maximum performance across platforms
- Complete on-device processing with no cloud dependencies or API calls
- Support for 10+ programming languages with idiomatic bindings
- Multilingual voice synthesis with consistent quality across languages
- Lightweight architecture optimized for mobile and embedded devices
How You Can Use It
Building offline voice assistants for mobile and IoT devices
Adding accessibility features to desktop applications with screen reading
Creating interactive educational apps with multilingual pronunciation
Implementing real-time narration for games and multimedia content
Developing privacy-focused communication tools with local voice synthesis
Who Is This For?
Mobile and desktop application developers, embedded systems engineers, and accessibility tool creators who need fast, privacy-preserving text-to-speech capabilities