Document.execCommand()
- UNOFFAllows running commands to manipulate the contents of an editable region in a document switched to designMode
IE
- 5.5 - 10: Supported
- 11: Supported
Edge
- 12 - 86: Supported
- 87: Supported
Firefox
- 2 - 8: Not supported
- 9 - 83: Supported
- 84: Supported
- 85 - 86: Supported
Chrome
- 4 - 86: Supported
- 87: Supported
- 88 - 90: Supported
Safari
- 3.1 - 5.1: Support unknown
- 6 - 13.1: Supported
- 14: Supported
- TP: Supported
Opera
- 9 - 9.6: Support unknown
- 10 - 71: Supported
- 72: Supported
iOS Safari
- 3.2 - 4.1: Not supported
- 4.2 - 6.1: Support unknown
- 7 - 13.7: Supported
- 14: Supported
Opera Mini
- all: Not supported
Android Browser
- 2.1 - 4: Not supported
- 4.1 - 4.4.4: Supported
- 81: Supported
Opera Mobile
- 10 - 12.1: Supported
- 59: Supported
Chrome for Android
- 87: Supported
Firefox for Android
- 83: Supported
UC Browser for Android
- 12.12: Not supported
Samsung Internet
- 4 - 12.0: Supported
- 13.0: Supported
QQ Browser
- 10.4: Supported
Baidu Browser
- 7.12: Supported
KaiOS Browser
- 2.5: Supported
To determine what commands are supported, see Document.queryCommandSupported()