Quickstart

Speak in a few lines

npm (browser)

npm install @responsivevoice/core

import { getResponsiveVoice } from '@responsivevoice/core';

const rv = await getResponsiveVoice({ apiKey: 'YOUR_API_KEY' });
rv.speak('Hello, world!');

CDN (browser)

<script src="https://cdn.responsivevoice.org/sdk/latest/responsivevoice.js"></script>
<script>
  responsiveVoice.init({ apiKey: 'YOUR_API_KEY' });
  responsiveVoice.speak('Hello, world!');
</script>

REST (Node.js)

npm install @responsivevoice/api-client

import { ResponsiveVoiceAPIClient } from '@responsivevoice/api-client';

const client = new ResponsiveVoiceAPIClient({
  apiKey: process.env.RESPONSIVEVOICE_API_KEY,
  apiSecret: process.env.RESPONSIVEVOICE_API_SECRET,
});

const audio = await client.synthesize({
  text: 'Hello world',
  voice: 'UK English Female',
  format: 'mp3',
});

Packages

Modular by design

@responsivevoice/core

The heart — and lungs — of ResponsiveVoice: the browser client that speaks text aloud, with a familiar API.

@responsivevoice/api-client

REST API client with retry logic, response validation, and beautiful error handling.

@responsivevoice/types

Shared schemas and types used across the entire ecosystem.

Why ResponsiveVoice

Built for the modern web

TypeScript First

Full TypeScript support with strict types and IntelliSense.

Universal builds

ESM, CJS, and a browser bundle (CDN). Tree-shakeable exports.

100+ Voices

Access to 100+ voices across 50+ languages.

Backward Compatible

Drop-in replacement for legacy responsivevoice.js.

Integrations

Prefer no code?

Add text-to-speech to WordPressThe official plugin — a floating WebPlayer, Listen buttons, and a Gutenberg block. No code required.Get the plugin

For LLMs and AI agents: llms.txt, llms-full.txt, or the For AI Agents guide — append .md to any docs URL.