🎙️ Text-to-Speech That Just Works

The simplest way to add voice to your website with multiple TTS providers

One API. Multiple providers. No vendor lock-in.

The Problem

You want to add text-to-speech to your site. But now you need to:

Supernal TTS gives you one API that works with all of them.

Try It Live

Click to hear OpenAI voices. Switch providers anytime without changing your code:

Professional Voice

Welcome to Supernal TTS! Transform any text on your website into natural-sounding speech with just a few lines of code.

Friendly & Conversational

Add accessibility to your blog, documentation, or e-learning platform. Your users can listen while they work.

What You Get

🔌

One API, Multiple Providers

OpenAI, Cartesia, Azure—use any provider with the same code. Switch anytime.

💾

Built-In Caching

We cache generated audio. Same text requested twice? Served instantly from cache.

🎯

Drop-In Widget

Add two lines of HTML. That's it. No backend changes needed.

⚡

Fast API Responses

Direct provider integration. No unnecessary middleware slowing things down.

🔒

Your Keys, Your Control

Use your own API keys. You control costs and data.

📖

Open Source

Fork it, modify it, deploy it yourself. No black boxes.

Get Started in 60 Seconds

Option 1: Use Our Hosted API (Recommended)

<!-- Add to your HTML -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/supernal-tts-widget@latest/dist/styles.css">

<div class="tts-widget" data-text="Your text here">
  Your text here
</div>

<script src="https://cdn.jsdelivr.net/npm/supernal-tts-widget@latest/dist/widget.js"></script>
<script>
  SupernalTTS.init({ apiUrl: 'https://tts.supernal.ai' });
</script>

Option 2: Deploy Your Own Instance

  1. Fork the repository: GitHub
  2. Click "Deploy to Vercel" button (one click)
  3. Add your OPENAI_API_KEY in environment variables
  4. Done! Your API is live in under 2 minutes

Full Documentation

This demo shows the basics. For complete guides, API reference, and advanced features:

📖 Visit our documentation site
https://tts-docs.supernal.ai

Learn how to:

View Full Documentation →