Can I use
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Base64 encoding and decoding

- LS

Utility functions for encoding and decoding strings to and from base 64: window.atob() and window.btoa().

Chrome

  1. ✅ 4 - 137: Supported
  2. ✅ 138: Supported
  3. ✅ 139 - 141: Supported

Edge

  1. ✅ 12 - 137: Supported
  2. ✅ 138: Supported

Safari

  1. ✅ 3.1 - 18.4: Supported
  2. ✅ 18.5: Supported
  3. ✅ 26.0 - TP: Supported

Firefox

  1. ✅ 2 - 139: Supported
  2. ✅ 140: Supported
  3. ✅ 141 - 143: Supported

Opera

  1. ❌ 9 - 10.1: Not supported
  2. ﹖ 10.5: Support unknown
  3. ✅ 10.6 - 116: Supported
  4. ✅ 117: Supported

IE

  1. ❌ 5.5 - 9: Not supported
  2. ✅ 10: Supported
  3. ✅ 11: Supported

Chrome for Android

  1. ✅ 138: Supported

Safari on iOS

  1. ✅ 3.2 - 18.4: Supported
  2. ✅ 18.5: Supported
  3. ✅ 26.0: Supported

Samsung Internet

  1. ✅ 4 - 27: Supported
  2. ✅ 28: Supported

Opera Mini

  1. ✅ all: Supported

Opera Mobile

  1. ﹖ 10: Support unknown
  2. ✅ 11 - 12.1: Supported
  3. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ✅ 2.1 - 4.4.4: Supported
  2. ✅ 138: Supported

Firefox for Android

  1. ✅ 140: 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 - atob()
MDN Web Docs - btoa()
Polyfill