Speech Synthesis API

- UNOFF

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

IE

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

Edge

  1. 12 - 13: Not supported
  2. 14 - 18: Supported
  3. 79 - 85: Supported
  4. 86: Supported

Firefox

  1. 2 - 30: Not supported
  2. 31 - 48: Disabled by default
  3. 49 - 80: Supported
  4. 81: Supported
  5. 82 - 83: Supported

Chrome

  1. 4 - 32: Not supported
  2. 33 - 54: Supported
  3. 55 - 85: Supported
  4. 86: Supported
  5. 87 - 89: Supported

Safari

  1. 3.1 - 6.1: Not supported
  2. 7 - 13.1: Supported
  3. 14: Supported
  4. TP: Supported

Opera

  1. 9 - 26: Not supported
  2. 27 - 63: Supported
  3. 64 - 70: Supported
  4. 71: Supported

iOS Safari

  1. 3.2 - 6.1: Not supported
  2. 7 - 13.7: Supported
  3. 14: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 81: Not supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 59: Not supported

Chrome for Android

  1. 85: Supported

Firefox for Android

  1. 79: Supported

IE Mobile

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

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4: Not supported
  2. 5 - 11.2: Supported
  3. 12.0: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: 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