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letter-spacing CSS property

- REC

Controls spacing between characters of text (i.e. "tracking" in typographical terms). Not to be confused with kerning.

Chrome

  1. 4 - 29: Partial support
  2. 30 - 123: Supported
  3. 124: Supported
  4. 125 - 127: Supported

Edge

  1. 12 - 123: Supported
  2. 124: Supported

Safari

  1. 3.1: Support unknown
  2. 3.2 - 6: Partial support
  3. 6.1 - 17.3: Supported
  4. 17.4: Supported
  5. 17.5 - TP: Supported

Firefox

  1. 2 - 124: Supported
  2. 125: Supported
  3. 126 - 128: Supported

Opera

  1. 9 - 9.6: Support unknown
  2. 10 - 16: Partial support
  3. 17 - 108: Supported
  4. 109: Supported

IE

  1. 5.5: Support unknown
  2. 6 - 8: Partial support
  3. 9 - 10: Supported
  4. 11: Supported

Chrome for Android

  1. 124: Supported

Safari on iOS

  1. 3.2: Support unknown
  2. 4 - 17.3: Supported
  3. 17.4: Supported
  4. 17.5: Supported

Samsung Internet

  1. 4 - 23: Supported
  2. 24: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Partial support
  2. 80: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 2.2: Support unknown
  2. 2.3 - 4.3: Partial support
  3. 4.4 - 4.4.4: Supported
  4. 124: Supported

Firefox for Android

  1. 125: Supported

QQ Browser

  1. 14.9: Supported

Baidu Browser

  1. 13.52: Supported

KaiOS Browser

  1. 2.5: Supported
  2. 3: Supported
Resources:
MDN Web Docs - CSS letter-spacing