Web Sockets
- LSBidirectional communication technology for web apps
Chrome
- ◐ 4 - 14: Partial support
- ◐ 15: Partial support
- ✅ 16 - 128: Supported
- ✅ 129: Supported
- ✅ 130 - 132: Supported
Edge
- ✅ 12 - 128: Supported
- ✅ 129: Supported
Safari
- ❌ 3.1 - 4: Not supported
- ◐ 5 - 5.1: Partial support
- ◐ 6 - 6.1: Partial support
- ✅ 7 - 17.6: Supported
- ✅ 18.0: Supported
- ✅ 18.1 - TP: Supported
Firefox
- ❌ 2 - 3.6: Not supported
- ◐ 4 - 5: Partial support
- ◐ 6 - 10: Partial support
- ✅ 11 - 129: Supported
- ✅ 130: Supported
- ✅ 131 - 133: Supported
Opera
- ❌ 9 - 10.6: Not supported
- ◐ 11 - 12: Partial support
- ✅ 12.1 - 113: Supported
- ✅ 114: Supported
IE
- ❌ 5.5 - 9: Not supported
- ✅ 10: Supported
- ✅ 11: Supported
Chrome for Android
- ✅ 129: Supported
Safari on iOS
- ❌ 3.2 - 4.1: Not supported
- ◐ 4.2 - 5.1: Partial support
- ✅ 6 - 17.6: Supported
- ✅ 18.0: Supported
- ✅ 18.1: Supported
Samsung Internet
- ✅ 4 - 24: Supported
- ✅ 25: Supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10: Not supported
- ◐ 11 - 12: Partial support
- ✅ 12.1: Supported
- ✅ 80: Supported
UC Browser for Android
- ✅ 15.5: Supported
Android Browser
- ❌ 2.1 - 4.3: Not supported
- ✅ 4.4 - 4.4.4: Supported
- ✅ 129: Supported
Firefox for Android
- ✅ 130: Supported
QQ Browser
- ✅ 14.9: Supported
Baidu Browser
- ✅ 13.52: Supported
KaiOS Browser
- ✅ 2.5: Supported
- ✅ 3: Supported
Reported to be supported in some Android 4.x browsers, including Sony Xperia S, Sony TX and HTC.