A completely free, browser-based text-to-speech tool that converts any text into natural-sounding speech — instantly, privately, and without any sign-up.
We believe that text-to-speech technology should be accessible to everyone — students, professionals, content creators, and anyone with accessibility needs. So Ai removes every barrier: no cost, no accounts, no downloads, no data collection.
No hidden costs, no premium tiers, no API keys. Everything works at zero cost.
Your text never leaves your browser. All processing happens locally on your device.
Access voices in dozens of languages and dialects, powered by your browser's built-in engine.
Desktop, tablet, or phone — So Ai works on any modern browser without installation.
No loading, no buffering. Speech starts immediately because it runs locally.
Smart text chunking handles articles, essays, and books without breaking.
So Ai is built with pure HTML, CSS, and JavaScript — no frameworks, no build tools, no servers. The text-to-speech engine uses the Web Speech API, built directly into modern web browsers.
This means your text is processed entirely on your device. Nothing is ever sent to a remote server, making So Ai one of the most private TTS tools available.
| Browser | Quality | Notes |
|---|---|---|
| Google Chrome | Excellent | Best voice selection, Natural voices |
| Microsoft Edge | Excellent | Microsoft Neural voices included |
| Safari | Good | Apple high-quality voices |
| Firefox | Limited | Fewer voices available |
So Ai was created by Vasanth GN with the vision of making text-to-speech technology accessible to everyone, everywhere — completely free.