Can I use
?

IndexedDB

- REC

Method of storing data client-side, allows indexed database queries.

Chrome

  1. 4 - 9: Not supported (but has polyfill available)
  2. 10: Not supported
  3. 11 - 22: Partial support
  4. 23: Supported
  5. 24 - 123: Supported
  6. 124: Supported
  7. 125 - 127: Supported

Edge

  1. 12 - 18: Partial support
  2. 79 - 122: Supported
  3. 123: Supported

Safari

  1. 3.1 - 7: Not supported (but has polyfill available)
  2. 7.1 - 9.1: Partial support
  3. 10 - 14: Supported
  4. 14.1: Partial support
  5. 15 - 17.3: Supported
  6. 17.4: Supported
  7. 17.5 - TP: Supported

Firefox

  1. 2 - 3.6: Not supported
  2. 4 - 9: Partial support
  3. 10 - 15: Supported
  4. 16 - 124: Supported
  5. 125: Supported
  6. 126 - 128: Supported

Opera

  1. 9 - 10.1: Not supported
  2. 10.5 - 12.1: Not supported (but has polyfill available)
  3. 15 - 108: Supported
  4. 109: Supported

IE

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

Chrome for Android

  1. 123: Supported

Safari on iOS

  1. 3.2 - 7.1: Not supported (but has polyfill available)
  2. 8 - 9.3: Partial support
  3. 10 - 14.4: Supported
  4. 14.5: Partial support
  5. 15 - 17.3: Supported
  6. 17.4: Supported
  7. 17.5: Supported

Samsung Internet

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

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10: Not supported
  2. 11 - 12.1: Not supported (but has polyfill available)
  3. 80: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.3: Not supported (but has polyfill available)
  2. 4.4 - 4.4.4: Supported
  3. 123: Supported

Firefox for Android

  1. 124: Supported

QQ Browser

  1. 14.9: Supported

Baidu Browser

  1. 13.52: Supported

KaiOS Browser

  1. 2.5: Supported
  2. 3: Supported
Resources:
Polyfill for browsers supporting WebSQL
Mozilla Hacks article
has.js test
WebPlatform Docs