KeyboardEvent.key

- WD

A KeyboardEvent property whose value is a string identifying the key that was pressed. Covers character keys, non-character keys (e.g. arrow keys), and dead keys.

IE

  1. 5.5 - 8: Not supported
  2. 9 - 10: Partial support
  3. 11: Partial support

Edge

  1. 12 - 18: Partial support
  2. 79: Supported
  3. 80: Supported

Firefox

  1. 2 - 22: Not supported
  2. 23 - 28: Partial support
  3. 29 - 72: Supported
  4. 73: Supported
  5. 74 - 75: Supported

Chrome

  1. 4 - 50: Not supported
  2. 51 - 79: Supported
  3. 80: Supported
  4. 81 - 83: Supported

Safari

  1. 3.1 - 10: Not supported
  2. 10.1 - 12.1: Supported
  3. 13: Supported
  4. TP: Supported

Opera

  1. 9 - 11.6: Not supported
  2. 12: Support unknown
  3. 12.1: Supported
  4. 15 - 37: Not supported
  5. 38 - 65: Supported
  6. 66: Supported

iOS Safari

  1. 3.2 - 10.2: Not supported
  2. 10.3 - 13.1: Supported
  3. 13.2: Supported
  4. 13.3: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 80: Not supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Not supported

Opera Mobile

  1. 10 - 11.5: Not supported
  2. 12: Support unknown
  3. 12.1: Supported
  4. 46: Support unknown

Chrome for Android

  1. 80: Supported

Firefox for Android

  1. 68: Supported

IE Mobile

  1. 10: Partial support
  2. 11: Partial support

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4: Not supported
  2. 5 - 9.2: Supported
  3. 10.1: Supported

QQ Browser

  1. 1.2: Not supported

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Supported
Resources:
WebKit feature request bug
Chrome tracking bug
Edge bug report
MDN Web Docs - key
shim-keyboard-event-key: shim for non-standard key identifiers for IE & Edge
Spec listing all key string values