Zero Server Costs Means Zero Limits for You
Traditional AI voice generators charge you because they run heavy models on expensive cloud GPUs. Our platform changes the game.
By utilizing cutting-edge WebGPU and WASM technologies, the AI model runs directly on YOUR device hardware (CPU/GPU).
We do not pay for servers to generate your audio. That is why we will never ask for a subscription, tokens, or registration.
TTS Engine Comparison
Four engines, four quality levels. Pick the one that fits your hardware and use case.
| Feature | Kokoro TTS | Piper TTS | Kitten TTS | eSpeak NG |
|---|---|---|---|---|
| Voice quality | Ultra-realistic AI | Natural, clean | Light, smooth | Robotic, classic |
| Hardware needs | Medium (WebGPU required) | Low (fast CPU) | Very low | Minimal (works anywhere) |
| Model size | ~325 MB | ~60 MB | ~23 MB | No download |
| Best for | Audiobooks, video narration | Messages, assistants | Weak mobile devices | Accessibility (screen readers) |
Frequently Asked Questions (FAQ)
Is there a character limit?
No. Since the synthesis happens entirely on your local PC, you can convert entire books or long scripts without any restrictions.
Can I use the generated audio for commercial projects?
Yes. All four open-source engines support commercial use. You own 100% of the exported .wav/.mp3 files.
Why does the first voice generation take a few seconds?
The first time you select a new voice, your browser downloads the model file to your local cache. Future generations are instant and work offline.