Speech Synthesis API
- UNOFFA web API for controlling a text-to-speech output.
Chrome
- 4 - 32: Not supported
- 33 - 54: Supported
- 55 - 122: Supported
- 123: Supported
- 124 - 126: Supported
Edge
- 12 - 13: Not supported
- 14 - 18: Supported
- 79 - 122: Supported
- 123: Supported
Safari
- 3.1 - 6.1: Not supported
- 7 - 17.3: Supported
- 17.4: Supported
- TP: Supported
Firefox
- 2 - 30: Not supported
- 31 - 48: Disabled by default
- 49 - 123: Supported
- 124: Supported
- 125 - 127: Supported
Opera
- 9 - 26: Not supported
- 27 - 63: Supported
- 64 - 107: Supported
- 108: Supported
IE
- 5.5 - 10: Not supported
- 11: Not supported
Chrome for Android
- 122: Supported
Safari on iOS
- 3.2 - 6.1: Not supported
- 7 - 17.3: Supported
- 17.4: Supported
Samsung Internet
- 4: Not supported
- 5 - 22: Supported
- 23: Supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 80: Not supported
UC Browser for Android
- 15.5: Not supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 122: Not supported
Firefox for Android
- 123: Supported
QQ Browser
- 14.9: Supported
Baidu Browser
- 13.52: Not supported
KaiOS Browser
- 2.5: Supported
- 3: Supported
Samsung Internet for GearVR: In Development, release based on Chromium m53 due Q1/2017