Opus
- OTHERRoyalty-free open audio codec by IETF, which incorporated SILK from Skype and CELT from Xiph.org, to serve higher sound quality and lower latency at the same bitrate.
IE
- 5.5 - 10: Not supported
- 11: Not supported
Edge
- 12 - 13: Not supported
- 14 - 96: Supported
- 97: Supported
Firefox
- 2 - 14: Not supported
- 15 - 95: Supported
- 96: Supported
- 97 - 98: Supported
Chrome
- 4 - 32: Not supported
- 33 - 96: Supported
- 97: Supported
- 98 - 100: Supported
Safari
- 3.1 - 10.1: Not supported
- 11 - 15.1: Partial support
- 15.2: Partial support
- TP: Partial support
Opera
- 9 - 19: Not supported
- 20 - 81: Supported
- 82: Supported
Safari on iOS
- 3.2 - 10.3: Not supported
- 11 - 15.1: Partial support
- 15.2: Partial support
Opera Mini
- all: Not supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 97: Supported
Opera Mobile
- 10 - 12.1: Not supported
- 64: Supported
Chrome for Android
- 97: Supported
Firefox for Android
- 95: Supported
UC Browser for Android
- 12.12: Supported
Samsung Internet
- 4: Not supported
- 5 - 14.0: Supported
- 15.0: Supported
QQ Browser
- 10.4: Supported
Baidu Browser
- 7.12: Supported
KaiOS Browser
- 2.5: Supported
Support refers to this format's use in the audio element, not other conditions.
For Opera the Linux version may be able to play it when the GStreamer module is up to date and the served mime-type is 'audio/ogg'.