JavaScript built-in: Promise: any

IE

  1. 6 - 10: Not supported
  2. 11: Not supported

Edge

  1. 12 - 84: Not supported
  2. 85 - 120: Supported
  3. 121: Supported

Firefox

  1. 2 - 78: Not supported
  2. 79 - 122: Supported
  3. 123: Supported
  4. 124 - 126: Supported

Chrome

  1. 4 - 84: Not supported
  2. 85 - 121: Supported
  3. 122: Supported
  4. 123 - 125: Supported

Safari

  1. 3.1 - 13.1: Not supported
  2. 14 - 17.2: Supported
  3. 17.3: Supported
  4. 17.4 - TP: Supported

Opera

  1. 10 - 70: Not supported
  2. 71 - 105: Supported
  3. 106: Supported

Safari on iOS

  1. 3.2 - 13.7: Not supported
  2. 14 - 17.2: Supported
  3. 17.3: Supported
  4. 17.4: Supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 121: Supported

Opera Mobile

  1. 12 - 12.1: Not supported
  2. 73: Supported

Chrome for Android

  1. 121: Supported

Firefox for Android

  1. 122: Supported

UC Browser for Android

  1. 15.5: Support unknown

Samsung Internet

  1. 4 - 13.0: Not supported
  2. 14.0 - 22: Supported
  3. 23: Supported

QQ Browser

  1. 13.1: Support unknown

Baidu Browser

  1. 13.18: Support unknown

KaiOS Browser

  1. 2.5: Support unknown
  2. 3: Support unknown