asm.js
- OTHERAn extraordinarily optimizable, low-level subset of JavaScript, intended to be a compile target from languages like C++.
Chrome
- 4 - 27: Not supported
- 28 - 122: Partial support
- 123: Partial support
- 124 - 126: Partial support
Edge
- 12: Disabled by default
- 13 - 18: Supported
- 79 - 122: Partial support
- 123: Partial support
Safari
- 3.1 - 17.3: Not supported
- 17.4: Not supported
- TP: Not supported
Firefox
- 2 - 21: Not supported
- 22 - 123: Supported
- 124: Supported
- 125 - 127: Supported
Opera
- 9 - 12.1: Not supported
- 15 - 107: Partial support
- 108: Partial support
IE
- 5.5 - 10: Not supported
- 11: Not supported
Chrome for Android
- 122: Partial support
Safari on iOS
- 3.2 - 17.3: Not supported
- 17.4: Not supported
Samsung Internet
- 4: Not supported
- 5 - 22: Partial support
- 23: Partial support
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 80: Partial support
UC Browser for Android
- 15.5: Partial support
Android Browser
- 2.1 - 4.4.4: Not supported
- 122: Partial support
Firefox for Android
- 123: Supported
QQ Browser
- 14.9: Partial support
Baidu Browser
- 13.52: Partial support
KaiOS Browser
- 2.5: Supported
- 3: Supported
asm.js is mostly rendered obsolete with the introduction of WebAssembly and is therefore no longer recommended