FileReader API

- WD

Method of reading the contents of a File or Blob object into memory

Chrome

  1. 4 - 5: Not supported
  2. 6 - 103: Supported
  3. 104: Supported
  4. 105 - 107: Supported

Edge

  1. 12 - 103: Supported
  2. 104: Supported

Safari

  1. 3.1 - 5.1: Not supported
  2. 6 - 15.5: Supported
  3. 15.6: Supported
  4. 16.0 - TP: Supported

Firefox

  1. 2 - 3.5: Not supported
  2. 3.6 - 102: Supported
  3. 103: Supported
  4. 104 - 105: Supported

Opera

  1. 9 - 11: Not supported
  2. 11.1 - 88: Supported
  3. 89: Supported
  4. 90: Supported

IE

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

Chrome for Android

  1. 104: Supported

Safari on iOS

  1. 3.2 - 5.1: Not supported
  2. 6 - 15.4: Supported
  3. 15.5: Supported
  4. 16.0: Supported

Samsung Internet

  1. 4 - 16.0: Supported
  2. 17.0: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 11: Not supported
  2. 11.1 - 12.1: Supported
  3. 64: Supported

UC Browser for Android

  1. 12.12: Supported

Android Browser

  1. 2.1 - 2.3: Not supported
  2. 3 - 4.4.4: Supported
  3. 104: Supported

Firefox for Android

  1. 101: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Supported
Resources:
MDN Web Docs - FileReader
WebPlatform Docs
Sub-features:
FileReaderSync