Speech Synthesis API

- UNOFF

A web API for controlling a text-to-speech output.

Chrome

  1. 4 - 32: Not supported
  2. 33 - 54: Supported
  3. 55 - 108: Supported
  4. 109: Supported
  5. 110 - 112: Supported

Edge

  1. 12 - 13: Not supported
  2. 14 - 18: Supported
  3. 79 - 108: Supported
  4. 109: Supported

Safari

  1. 3.1 - 6.1: Not supported
  2. 7 - 16.2: Supported
  3. 16.3: Supported
  4. TP: Supported

Firefox

  1. 2 - 30: Not supported
  2. 31 - 48: Disabled by default
  3. 49 - 108: Supported
  4. 109: Supported
  5. 110 - 111: Supported

Opera

  1. 9 - 26: Not supported
  2. 27 - 63: Supported
  3. 64 - 91: Supported
  4. 92: Supported

IE

  1. 5.5 - 10: Not supported
  2. 11: Not supported

Chrome for Android

  1. 109: Supported

Safari on iOS

  1. 3.2 - 6.1: Not supported
  2. 7 - 16.2: Supported
  3. 16.3: Supported

Samsung Internet

  1. 4: Not supported
  2. 5 - 18.0: Supported
  3. 19.0: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 72: Not supported

UC Browser for Android

  1. 13.4: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 109: Not supported

Firefox for Android

  1. 107: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Not supported

KaiOS Browser

  1. 2.5: Supported

Samsung Internet for GearVR: In Development, release based on Chromium m53 due Q1/2017

Resources:
MDN article
Google Developers article
Demo
SitePoint article
Advanced demo and resource