letter-spacing CSS property
- RECControls spacing between characters of text (i.e. "tracking" in typographical terms). Not to be confused with kerning.
Chrome
- 4 - 29: Partial support
- 30 - 113: Supported
- 114: Supported
- 115 - 117: Supported
Edge
- 12 - 113: Supported
- 114: Supported
Safari
- 3.1: Support unknown
- 3.2 - 6: Partial support
- 6.1 - 16.4: Supported
- 16.5: Supported
- 16.6 - TP: Supported
Firefox
- 2 - 112: Supported
- 113: Supported
- 114 - 115: Supported
Opera
- 9 - 9.6: Support unknown
- 10 - 16: Partial support
- 17 - 98: Supported
- 99: Supported
IE
- 5.5: Support unknown
- 6 - 8: Partial support
- 9 - 10: Supported
- 11: Supported
Chrome for Android
- 114: Supported
Safari on iOS
- 3.2: Support unknown
- 4 - 16.4: Supported
- 16.5: Supported
- 16.6 - 17: Supported
Samsung Internet
- 4 - 20: Supported
- 21: Supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Partial support
- 73: Supported
UC Browser for Android
- 13.4: Supported
Android Browser
- 2.1 - 2.2: Support unknown
- 2.3 - 4.3: Partial support
- 4.4 - 4.4.4: Supported
- 114: Supported
Firefox for Android
- 113: Supported
QQ Browser
- 13.1: Supported
Baidu Browser
- 13.18: Supported
KaiOS Browser
- 2.5: Supported
- 3: Supported
- Resources:
- MDN Web Docs - CSS letter-spacing