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Google Cloud Text-to-Speech: Node.js Client

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Cloud Text-to-Speech API client for Node.js

Read more about the client libraries for Cloud APIs, including the older Google APIs Client Libraries, in Client Libraries Explained.

Table of contents:


Before you begin

  1. Select or create a Cloud Platform project.
  2. Enable billing for your project.
  3. Enable the Google Cloud Text-to-Speech API.
  4. Set up authentication with a service account so you can access the API from your local workstation.

Installing the client library

npm install @google-cloud/text-to-speech

Using the client library

  // Imports the Google Cloud client library
  const textToSpeech = require('@google-cloud/text-to-speech');

  // Import other required libraries
  const fs = require('fs');
  const util = require('util');
  // Creates a client
  const client = new textToSpeech.TextToSpeechClient();
  async function quickStart() {

    // The text to synthesize
    const text = 'hello, world!';

    // Construct the request
    const request = {
      input: {text: text},
      // Select the language and SSML voice gender (optional)
      voice: {languageCode: 'en-US', ssmlGender: 'NEUTRAL'},
      // select the type of audio encoding
      audioConfig: {audioEncoding: 'MP3'},

    // Performs the text-to-speech request
    const [response] = await client.synthesizeSpeech(request);
    // Write the binary audio content to a local file
    const writeFile = util.promisify(fs.writeFile);
    await writeFile('output.mp3', response.audioContent, 'binary');
    console.log('Audio content written to file: output.mp3');


Samples are in the samples/ directory. The samples' has instructions for running the samples.

Sample Source Code Try it
Audio Profile source code Open in Cloud Shell
List Voices source code Open in Cloud Shell
Quickstart source code Open in Cloud Shell
Ssml Addresses source code Open in Cloud Shell
Synthesize source code Open in Cloud Shell

The Google Cloud Text-to-Speech Node.js Client API Reference documentation also contains samples.


This library follows Semantic Versioning.

This library is considered to be General Availability (GA). This means it is stable; the code surface will not change in backwards-incompatible ways unless absolutely necessary (e.g. because of critical security issues) or with an extensive deprecation period. Issues and requests against GA libraries are addressed with the highest priority.

More Information: Google Cloud Platform Launch Stages


Contributions welcome! See the Contributing Guide.


Apache Version 2.0