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 - 116: Partial support
- 117: Partial support
- 118 - 120: Partial support
Edge
- 12: Disabled by default
- 13 - 18: Supported
- 79 - 116: Partial support
- 117: Partial support
Safari
- 3.1 - 16.6: Not supported
- 17.0: Not supported
- 17.1 - TP: Not supported
Firefox
- 2 - 21: Not supported
- 22 - 116: Supported
- 117: Supported
- 118 - 120: Supported
Opera
- 9 - 12.1: Not supported
- 15 - 101: Partial support
- 102: Partial support
IE
- 5.5 - 10: Not supported
- 11: Not supported
Chrome for Android
- 117: Partial support
Safari on iOS
- 3.2 - 16.6: Not supported
- 17.0: Not supported
- 17.1: Not supported
Samsung Internet
- 4: Not supported
- 5 - 21: Partial support
- 22: Partial support
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 73: Partial support
UC Browser for Android
- 15.5: Partial support
Android Browser
- 2.1 - 4.4.4: Not supported
- 117: Partial support
Firefox for Android
- 117: Supported
QQ Browser
- 13.1: Partial support
Baidu Browser
- 13.18: 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